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The objective of this study is to determine the relationship between Attention Deficit Hyperactivity Disorder (ADHD) and entrepreneurial behavior, especially in characteristics such as risk-taking, creativity, and decision-making. Three groups of ten individuals (5 women; age 36.3 ± 14.0) were selected using social media platforms: one group with ADHD (four participants), one group of entrepreneurs (three participants), and one control group without ADHD or entrepreneurial ex-perience (three participants). 10-question interviews, tailored to their respective profiles, were conducted individually via Zoom. After interviews transcriptions, significant statements were extracted for data analysis. Participants were also instructed to play the Iowa Gambling Task (IGT) from an online platform to as-sess decision-making and risk-taking. Individual data were compiled, compared and statistically processed with Microsoft Excel. As results, comparing interview statements between individuals with ADHD, entrepreneurs, and the control group, in terms of risk-taking, attention, and creativity showed that individuals with ADHD can bring unique traits and skills to entrepreneurship, while entrepreneurs have specific strategies for managing distractions and maintaining focus. The control group emphasizes organization and analysis rather than creativity. The findings from the IGT suggested that people with ADHD may exhibit impulsive tendencies and difficulty evaluating the long-term consequences of their actions. Entrepreneurs were willing to take calculated risks to seize opportunities and achieve their goals, and they were also aware of the need to limit risk and make prudent decisions to protect their investments. The control group highlighted the individual differences in risk-taking in randomly selected individuals, without any special condition. They showed a certain caution in opting for low-risk choices. In conclusion, the study underscores the importance of considering individual and contextual factors in decision-making processes, incorporating neurobiological aspects of ADHD. Although available data did not directly examine the influence of these factors on entrepreneurship success, it highlights the significance of understanding the complex influences involved in decision-making.

El objetivo de este estudio es determinar la relación entre el Trastorno por Déficit de Atención con Hiperactividad (TDAH) y el comportamiento emprendedor, especialmente en características como la asunción de riesgos, la creatividad y la toma de decisiones. Se seleccionaron tres grupos de diez individuos (5 mujeres; edad 36,3 ± 14,0) utilizando plataformas de medios sociales: un grupo con TDAH (cuatro participantes), un grupo de emprendedores (tres participantes) y un grupo de control sin TDAH ni experiencia emprendedora (tres participantes). Las entrevistas de 10 preguntas, adaptadas a sus respectivos perfiles, se realizaron individualmente a través de Zoom. Tras la transcripción de las entrevistas, se extrajeron las afirmaciones significativas para el análisis de los datos. También se indicó a los participantes que jugaran a la Iowa Gambling Task (IGT) desde una plataforma en línea para evaluar la toma de decisiones y la asunción de riesgos. Los datos individuales se recopilaron, compararon y procesaron estadísticamente con Microsoft Excel. Como resultados, la comparación de las declaraciones de las entrevistas entre individuos con TDAH, emprendedores y el grupo de control, en términos de asunción de riesgos, atención y creatividad, mostró que los individuos con TDAH pueden aportar rasgos y habilidades únicos a la iniciativa empresarial, mientras que los emprendedores tienen estrategias específicas para gestionar las distracciones y mantener la concentración. El grupo de control pone más énfasis en la organización y el análisis que en la creatividad. Los resultados del IGT sugirieron que las personas con TDAH pueden mostrar tendencias impulsivas y dificultad para evaluar las consecuencias a largo plazo de sus acciones. Los empre-sarios estaban dispuestos a asumir riesgos calculados para aprovechar las oportunidades y alcanzar sus objetivos, y también eran conscientes de la necesidad de limitar el riesgo y tomar decisiones prudentes para proteger sus inversiones. El grupo de control puso de manifiesto las diferencias individuales en la asunción de riesgos en individuos seleccionados al azar, sin ninguna condición especial. Mostraron cierta cautela a la hora de optar por opciones de bajo riesgo. En conclusión, el estudio subraya la importancia de considerar los factores individuales y contextuales en los procesos de toma de decisiones, incorporando los aspectos neurobio-lógicos del TDAH. Aunque los datos disponibles no examinaron directamente la influencia de estos factores en el éxito empresarial, pone de relieve la importancia de comprender las complejas influencias que intervienen en la toma de decisiones.

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The Iowa Gambling Task (IGT) is a popular method for examining real-life decision-making. Research has shown gender related differences in performance, in that men consistently outperform women. It has been suggested that these performance differences are related to decreased emotional control in women compared to men. Given the likely role of emotion in these gender differences, in the present study, we examine the effect of a humor induction on IGT performance and whether the effect of humor is moderated by gender. IGT performance and parameters from the Expectancy Valence Model (EVM) were measured in 68 university students (34 men; mean age 22.02, SD = 4.3 and 34 women; mean age 22.3, SD = 4.1) during a 100 trial-IGT task. Participants were exposed to a brief video before each of the IGT decisions available; one half of the samples (17 men and 17 women) was exposed to 100 humor videos, while the other half was exposed to 100 non-humor videos during the task. We observed a significant interaction between gender and humor, such that under humor, women's performance during the last block (trials 80-100) improved (compared to women under non-humor), whereas men's performance during the last block was worse (compared to men under non-humor). Consistent with previous work, under non-humor, men outperformed women in the last block. Lastly, our EVM results show that humor impacts the learning mechanisms of decision-making differently in men and women. Humor impaired men's ability to acquire knowledge about the payoff structure of the decks, and as a consequence, they were stuck in suboptimal performance. On the other hand, humor facilitated women's ability to explore and to learn from experience, improving performance. These findings deepen our understanding of the mechanisms underlying IGT decision-making and differential effects of humor in men and women.

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INTRODUCTION: Decision making (DM) is one aspect of impulsivity that can be defined by the ability to decide between two or more options in a given situation. To date, there are at least two types of DM that differ in the level of uncertainty, and how much information about consequences is provided. In this study, we aimed to evaluate the two domains of DM - under risk and ambiguous - with a comprehensive evaluation in a group of patients with juvenile myoclonic epilepsy (JME), and correlate with patients' characteristics, clinical variables, and neuropsychological evaluation for executive functions. METHODS: We evaluated 35 patients with JME and 39 healthy controls using the Iowa Gambling Task for DM under ambiguity and the Game Dice Task for DM under risk. We assessed the performance in Iowa Gambling Task and Game Dice Task through net scores, safe and risky choices, besides the type of decisions across time. RESULTS: Patients with JME had a higher number of risky choices compared to controls in the Game Dice Task. There was no significant difference between patients and controls in the Iowa Gambling Task. However, patients with higher seizure frequency had worse scores on decks C and D (safe choices) from the Iowa Gambling Task. CONCLUSION: Patients with JME have worse performance on DM under risk. The same was not observed for DM under ambiguity. Epilepsy-related factors and the presence of psychiatric disorders, but not executive dysfunction, were associated with a lower tendency for safe choices. These findings showed a dissociation between DM processes in patients with JME and a tendency to make disadvantageous decisions with measurable risks.

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Major Depressive Disorder (MDD) can occur in parallel with cognitive impairment. The search for a neuropsychological profile of depression has been pursued in the last two decades. However, scant research has been done on executive functions and decision-making ability (DM). OBJECTIVE: To perform a systematic review of the evidence of DM performance evaluated using the Iowa Gambling Task (IGT) in adults with MDD. METHODS: A systematic search according to the PRISMA statement was performed on MEDLINE for studies in English using the following keywords: 'depression', 'depressive', 'depressive symptoms' AND 'decision making' OR 'game task'. RESULTS: Five articles that met the inclusion and exclusion criteria were identified. Three reported significant differences between depressed and non-depressed individuals. The results indicated that young adults with MDD exhibited lower performance on all or almost all stages of the IGT. One study that evaluated DM in older adults with MDD showed that depressed non-apathetic participants failed to adopt any advantageous strategy and continued to make risky decisions during the task. CONCLUSION: Results suggest that performance on the DM task by young and old adults with MDD differed in comparison to non-depressed participants. Given the small number of articles, further studies should be performed.

O Transtorno Depressivo Maior (TDM) pode ocorrer em paralelo com o comprometimento cognitivo. A busca por um perfil neuropsicológico da depressão tem sido perseguida nas últimas duas décadas. No entanto, poucas pesquisas foram feitas sobre funções executivas e capacidade de decisão (DM). OBJETIVO: Realizar uma revisão sistemática das evidências do desempenho do DM avaliado pela Iowa Gambling Task (IGT) em adultos com TDM. MÉTODOS: Uma pesquisa sistemática de acordo com a declaração PRISMA foi realizada na MEDLINE para estudos em inglês usando as seguintes palavras-chave: "depressão", "depressivo", "sintomas depressivos" e "tomada de decisão" OU "tarefa de jogo". RESULTADOS: Foram identificados 5 artigos que atenderam aos critérios de inclusão e exclusão. Três relataram diferenças significativas entre indivíduos deprimidos e não deprimidos. Os resultados indicaram que os jovens adultos com TDM exibiram menor desempenho em todos ou quase todos os estágios da IGT. Um estudo que avaliou o DM em idosos com TDM mostrou que os participantes deprimidos não apáticos não adotaram nenhuma estratégia vantajosa e continuaram tomando decisões arriscadas durante a tarefa. CONCLUSÃO: Os resultados sugerem que o desempenho na tarefa de DM por jovens e adultos idosos com TDM diferiu em comparação com os participantes não deprimidos. Dado o pequeno número de artigos, mais estudos devem ser realizados.

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Abstract Major Depressive Disorder (MDD) can occur in parallel with cognitive impairment. The search for a neuropsychological profile of depression has been pursued in the last two decades. However, scant research has been done on executive functions and decision-making ability (DM). Objective: To perform a systematic review of the evidence of DM performance evaluated using the Iowa Gambling Task (IGT) in adults with MDD. Methods: A systematic search according to the PRISMA statement was performed on MEDLINE for studies in English using the following keywords: 'depression', 'depressive', 'depressive symptoms' AND 'decision making' OR 'game task'. Results: Five articles that met the inclusion and exclusion criteria were identified. Three reported significant differences between depressed and non-depressed individuals. The results indicated that young adults with MDD exhibited lower performance on all or almost all stages of the IGT. One study that evaluated DM in older adults with MDD showed that depressed non-apathetic participants failed to adopt any advantageous strategy and continued to make risky decisions during the task. Conclusion: Results suggest that performance on the DM task by young and old adults with MDD differed in comparison to non-depressed participants. Given the small number of articles, further studies should be performed.

Resumo O Transtorno Depressivo Maior (TDM) pode ocorrer em paralelo com o comprometimento cognitivo. A busca por um perfil neuropsicológico da depressão tem sido perseguida nas últimas duas décadas. No entanto, poucas pesquisas foram feitas sobre funções executivas e capacidade de decisão (DM). Objetivo: Realizar uma revisão sistemática das evidências do desempenho do DM avaliado pela Iowa Gambling Task (IGT) em adultos com TDM. Métodos: Uma pesquisa sistemática de acordo com a declaração PRISMA foi realizada na MEDLINE para estudos em inglês usando as seguintes palavras-chave: "depressão", "depressivo", "sintomas depressivos" e "tomada de decisão" OU "tarefa de jogo". Resultados: Foram identificados 5 artigos que atenderam aos critérios de inclusão e exclusão. Três relataram diferenças significativas entre indivíduos deprimidos e não deprimidos. Os resultados indicaram que os jovens adultos com TDM exibiram menor desempenho em todos ou quase todos os estágios da IGT. Um estudo que avaliou o DM em idosos com TDM mostrou que os participantes deprimidos não apáticos não adotaram nenhuma estratégia vantajosa e continuaram tomando decisões arriscadas durante a tarefa. Conclusão: Os resultados sugerem que o desempenho na tarefa de DM por jovens e adultos idosos com TDM diferiu em comparação com os participantes não deprimidos. Dado o pequeno número de artigos, mais estudos devem ser realizados.

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Este artículo se ha propuesto como una revisión de las investigaciones que han surgido en la última década en el campo de la neurociencia, y que se hayan relacionadas con la actividad neurobiológica y funcional de la toma de decisiones por parte del ser humano. Así, ha sido posible identificar y dar cuenta de las estructuras del sistema nervioso central que son claves en la comprensión de los procesos relacionados con la toma de decisiones, y a su vez han permitido establecer el rol de las emociones como influencia determinante en este proceso. De igual forma, las investigaciones han posibilitado conocer cómo se lleva a cabo la actividad de tomar decisiones en el cerebro, las relaciones entre las diversas regiones y cómo las emociones guían el resultado.Además, se ha llegado a destacar dos sistemas que explicarían el proceso de la toma de decisiones, uno asociado a la intuición (sistema práctico), donde se destaca la actividad metabólica de la amígdala cerebral y sus redes neuronales; otro que corresponde al razonamiento (sistema analítico), en el cual resalta la participación de las conexiones neuronales de la porción ventromedial del córtex prefrontal.

This paper has proposedas a review of the researchthat has been appearing in the last decade in the field of neuroscience, and the relationship with the neurobiological and functional activity of the human decision making. Therefore, it has been possible to identify and inform the key structures of the central nervous system in the comprehension of the related processes, and it has allowed to stablish the important influence of the emotion in this process. Also, the research hasallowed to know how the decision-making process has been referred in the brain, the relationship between the different brain regions and the emotion who led the outcome. Thus, there are two systems involved in the decision makingprocess; one related with the intuition (practical system), where the metabolic activity of the cerebral amygdala is remarked with their neural networks, and other related with reasoning (analytical system), in which, is important to note the involvement of the ventromedial portion of the prefrontal cortex.

Este artigo foi proposto como uma revisão das pesquisas que surgiram na última década no campo da neurociência, e que tem sido relacionada à atividade neurobiológica e funcional da tomada de decisão pelo ser humano. Assim, foi possível identificar e explicar as estruturas do sistema nervoso central que são fundamentais na compreensão dos processos relacionados à tomada de decisões e, por sua vez, permitiram estabelecer o papel das emoções como influência determinante nesse processo. Da mesma forma, a pesquisa permitiu saber como é a atividade de tomada de decisão no cérebro, as relações entre diferentes regiões e como as emoções orientam o resultado. Ademais, foram destacados dois sistemas que explicam o processo de tomada de decisão, um associado à intuição (sistema prático), que enfatiza a atividade metabólica da amígdala cerebral e suas redes neurais; outro correspondente ao raciocínio (sistema analítico), no qual as conexões neuronais da porção ventromedial do córtex pré-frontal são destacadas.

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OBJECTIVE: This study investigated the pattern of decision-making (DM) on the Iowa Gambling Task (IGT) in a sample of Portuguese speaking healthy older women in Brazil with limited education: illiterate, 1-2 years, and 3-4 years of schooling. METHODS: Around 164 non-demented community-dwelling women participated in the study. Among them 60 were illiterate, 52 had 1-2 years of schooling and 52 had 3-4 years of schooling. Participants completed the instruments: Brief Cognitive Screening Battery (BCSB), Mini-Mental State Examination, Verbal Fluency Test (animal category), Clock Drawing Test, Geriatric Depression Scale, Geriatric Anxiety Inventory, Digit Span Forward and Backward, Raven's Coloured Progressive Matrices, Wisconsin Card Sorting Test, and IGT. RESULTS: The three education groups were equivalent as to age, number of diseases, medications taken daily, depression, and anxiety symptoms. In the IGT the literate older adults made more advantageous choices than the illiterate and IGT performance improved linearly with higher levels of education. IGT performance correlated significantly with all cognitive test scores with the exception of the memorization of the pictures on the BCSB. CONCLUSION: The results suggested that education influences IGT performance, with worse scores among the illiterate. Results may be used by clinicians to interpret IGT performance among seniors with low literacy levels.

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Objective Conduct a systematic review to investigate whether healthy elderly have deficits in the decision-making process when compared to the young. Methods We performed a systematic search on SciELO, Lilacs, PsycINFO, Scopus and PubMed database with keywords decision making and aging (according to the description of Mesh terms) at least 10 years. Results We found nine studies from different countries, who investigated 441 young and 377 elderly. All studies used the IOWA Gambling Task as a way of benchmarking the process of decision making. The analysis showed that 78% of the articles did not have significant differences between groups. However, 100% of the studies that assessed learning did find relevant differences. Furthermore, studies that observed the behavior of individuals in the face of losses and gains, 60% of articles showed that the elderly has more disadvantageous choices throughout the task. Conclusion: The consulted literature showed no consensus on the existence of differences in performance of the decision-making process between old and young, but it is observed that the elderly has deficits in learning and a tendency to fewer advantageous choices. .

Objetivo Realizar uma revisão sistemática para investigar se idosos saudáveis apresentam disfunções no processo de tomada de decisão quando comparados a jovens. Métodos Foi realizada uma busca sistemática nas bases de dados SciELO, Lilacs, PsycINFO, Scopus e PubMed, com as palavras-chave decision making and aging (de acordo com a descrição dos termos Mesh) dos últimos 10 anos. Resultados Foram encontrados nove estudos de diferentes países, que investigaram 441 jovens e 377 idosos. Como resultado, observou-se que 78% dos artigos não encontram diferenças significativas entre os grupos. Porém, 100% dos estudos que avaliaram o aprendizado encontram diferenças significativas. Além disso, dos estudos que observaram o comportamento dos indivíduos perante as perdas e ganhos, 60% mostraram que os idosos apresentam mais escolhas desvantajosas ao longo do teste. Conclusão Os artigos avaliados não apresentaram um consenso em relação à existência de diferenças no processo de tomada de decisão entre idosos e jovens, porém observa-se que os idosos apresentam dificuldade no aprendizado e tendência a escolhas menos vantajosas. .

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OBJECTIVES: To assess decision-making under explicit risk conditions in relapsing-remitting multiple sclerosis patients and its relationship to decisions made under conditions of ambiguity. To assess cognitive functions related to decision-making performance in patients with multiple sclerosis (MS). SETTING: MS center in Buenos Aires, Argentina. PARTICIPANTS: 27 patients with relapsing-remitting multiple sclerosis and 27 sex-matched, age-matched and education-matched healthy controls. INTERVENTION: Neuropsychological assessment and decision-making evaluation using the Game of Dice Task and the Iowa Gambling Task. OUTCOMES: Game of Dice Task and the Iowa Gambling Task scores. RESULTS: Patients with MS showed significantly poorer performance on the Game of Dice Task, choosing disadvantageous dice more often (p=0.019), as well as significantly lower overall scores in the Iowa Gambling Task (p=0.007). Block analysis showed that patients with MS and controls had scores that were comparable for blocks 1 and 2 (p=0.15 and p=0.24, respectively). Conversely, patients with MS scored poorly on blocks 4 (p=0.003) and 5 (p=0.023), the last two of the test, corresponding to decision-making under conditions of risk. Finally, the Game of Dice Task performance together with the last three blocks of the Iowa Gambling Task were correlated with visuospatial learning, processing speed and working memory but not with executive functioning. CONCLUSIONS: Patients with MS showed deficits in decision-making under risk conditions, which might be related to deficits in visuospatial learning, processing speed and working memory.

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Although the frontal lobes have traditionally been considered the neural substrates of executive functioning (EF), recent studies have suggested that other structures, such as the cerebellum, may be associated with these abilities. The role of the cerebellum has only been sparsely investigated in connection with decision making (DM), an important component of EF, and the few results obtained on this front have been inconclusive. The current study sought to investigate the role of the cerebellum in DM by comparing the performance of patients with cerebellar strokes, frontal-damaged patients, and a healthy control group on the Iowa Gambling Task (IGT). A total of nine cerebellar-damaged adults participated in the study, as well as nine individuals with frontal strokes and 18 control individuals. Patients were administered a version of the IGT adapted to the population of Southern Brazil. There was a marginal difference in mean IGT net scores between the two clinical groups, although both displayed impaired performance as compared to the control group. Overall, the DM ability of patients with cerebellar damage proved to be more preserved than that of individuals with frontal lobe strokes, but less preserved than that of the control group. These data suggested that, while the frontal lobes may be the most important brain structures for DM, the cerebellum might also play an active role in this cognitive function. Future studies assessing participants with lesions in different cerebellar regions and hemispheres will prove invaluable for the understanding of the neural structures involved in DM, and make significant contributions to the globalist-localizationist debate in DM neuroscience.

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SUMMARY: The aim of the present study was to use the Iowa Gambling Task (IGT) to investigate differences in decision-making (DM) between patients who sustained TBI and healthy subjects, while controlling for age, education and gender. METHODS: A hundred and ten participants, half of whom had severe or mild TBI, completed the IGT. RESULTS: Differences between control participants and patients with TBI were found regarding total net score, block score, number of selections from each deck and classification of performance as impaired or unimpaired. No significant differences in IGT performance were found between patients with and without frontal lesions and between patients with mild and severe TBI. CONCLUSIONS: Results indicate poor DM on the IGT in patients with TBI, regardless of lesion location and severity. The instrument proved to be equally sensitive to both frontal and extrafrontal lesions and did not differentiate between patients with mild and severe TBI.

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Learning under uncertainty is a common task that people face in their daily life. This process relies on the cognitive ability to adjust behavior to environmental demands. Although the biological underpinnings of those cognitive processes have been extensively studied, there has been little work in formal models seeking to capture the fundamental dynamic of learning under uncertainty. In the present work, we aimed to understand the basic cognitive mechanisms of outcome processing involved in decisions under uncertainty and to evaluate the relevance of previous experiences in enhancing learning processes within such uncertain context. We propose a formal model that emulates the behavior of people playing a well established paradigm (Iowa Gambling Task - IGT) and compare its outcome with a behavioral experiment. We further explored whether it was possible to emulate maladaptive behavior observed in clinical samples by modifying the model parameter which controls the update of expected outcomes distributions. Results showed that the performance of the model resembles the observed participant performance as well as IGT performance by healthy subjects described in the literature. Interestingly, the model converges faster than some subjects on the decks with higher net expected outcome. Furthermore, the modified version of the model replicated the trend observed in clinical samples performing the task. We argue that the basic cognitive component underlying learning under uncertainty can be represented as a differential equation that considers the outcomes of previous decisions for guiding the agent to an adaptive strategy.

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The Iowa Gambling Task (IGT) is the most widely instrument used in the assessment of affective decision-making in several populations with frontal impairment. The standard performance measure on the IGT is obtained by calculating the difference between the advantageous and the disadvantageous choices. This standard score does not allows the assessment of the use of different strategies to deal with contingencies of gain and losses across the task. This study aims to compare the standard score method used in IGT with a method that analyses the patterns of staying and shifting among different decks across the 100 choices, considering contingencies of choices with and without losses. We compared the IGT performance of 24 children with externalizing disorders (Attention Deficit Hyperactivity Disorder and Oppositional Defiant Disorder) and 24 healthy age-matched children. The analyses of the standard score across all blocks failed to show differences among children with externalizing disorders and control children. However, healthy children showed a pattern of shifting more from disadvantageous decks to advantageous decks and choosing more consecutive cards from the advantageous decks across all blocks, independently of the contingency of losses. On the other hand, children with externalizing disorders presented a pattern of shifting more from advantageous decks to disadvantageous ones in comparison to healthy children and repeatedly chose cards from the B deck across all blocks. This findings show that even though differences among groups might not be found when using the standard analyses, a different type of analysis might be able to show distinct strategies on the execution of the test.

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O Iowa Gambling Task (IGT) é uma tarefa amplamente utilizada na avaliação da capacidade de tomada de decisão. Neste artigo, procede-se à revisão da literatura, comparando-se as versões do IGT, as diferentes medidas de avaliação do desempenho e as alterações introduzidas nos procedimentos, nomeadamente no feedback, na aleatorização espacial dos baralhos, no número de ensaios e de cartas por baralho, nas instruções, na remuneração e na manipulação das recompensas e punições. Desta análise, conclui-se que as diversas versões da tarefa, as alterações nos procedimentos de aplicação e as diferentes medidas utilizadas na avaliação têm impacto no desempenho, prejudicam a comparação entre estudos e as generalizações dos resultados. Finalmente, apresentam-se sugestões para uma maior adequação dos procedimentos.

The Iowa Gambling Task (IGT) is a widely used task in the assessment of the decision-making ability. In this article, we conduct a literature review by comparing IGT versions, different performance assessment measures, and changes to procedures including feedback, spatial randomization of decks, number of trials, number of cards per deck, instructions, payment, and rewards and punishments. On basis of this analysis, we conclude that different versions of the task, changes in application procedures and different measures used to assess the task have an impact on performance, thereby affecting comparison among studies and generalization of results. Finally, we offer suggestions to define adequate procedures.

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O Iowa Gambling Task (IGT) é uma tarefa amplamente utilizada na avaliação da capacidade de tomada de decisão. Neste artigo, procede-se à revisão da literatura, comparando-se as versões do IGT, as diferentes medidas de avaliação do desempenho e as alterações introduzidas nos procedimentos, nomeadamente no feedback, na aleatorização espacial dos baralhos, no número de ensaios e de cartas por baralho, nas instruções, na remuneração e na manipulação das recompensas e punições. Desta análise, conclui-se que as diversas versões da tarefa, as alterações nos procedimentos de aplicação e as diferentes medidas utilizadas na avaliação têm impacto no desempenho, prejudicam a comparação entre estudos e as generalizações dos resultados. Finalmente, apresentam-se sugestões para uma maior adequação dos procedimentos.(AU)

The Iowa Gambling Task (IGT) is a widely used task in the assessment of the decision-making ability. In this article, we conduct a literature review by comparing IGT versions, different performance assessment measures, and changes to procedures including feedback, spatial randomization of decks, number of trials, number of cards per deck, instructions, payment, and rewards and punishments. On basis of this analysis, we conclude that different versions of the task, changes in application procedures and different measures used to assess the task have an impact on performance, thereby affecting comparison among studies and generalization of results. Finally, we offer suggestions to define adequate procedures.(AU)

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Pupil dilation under constant illumination is a physiological marker where modulation is related to several cognitive functions involved in daily decision making. There is evidence for a role of pupil dilation change during decision-making tasks associated with uncertainty, reward-prediction errors and surprise. However, while some work suggests that pupil dilation is mainly modulated by reward predictions, others point out that this marker is related to uncertainty signaling and surprise. Supporting the latter hypothesis, the neural substrate of this marker is related to noradrenaline (NA) activity which has been also related to uncertainty signaling. In this work we aimed to test whether pupil dilation is a marker for uncertainty and surprise in a learning task. We recorded pupil dilation responses in 10 participants performing the Iowa Gambling Task (IGT), a decision-making task that requires learning and constant monitoring of outcomes' feedback, which are important variables within the traditional study of human decision making. Results showed that pupil dilation changes were modulated by learned uncertainty and surprise regardless of feedback magnitudes. Interestingly, greater pupil dilation changes were found during positive feedback (PF) presentation when there was lower uncertainty about a future negative feedback (NF); and by surprise during NF presentation. These results support the hypothesis that pupil dilation is a marker of learned uncertainty, and may be used as a marker of NA activity facing unfamiliar situations in humans.

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Background: Decision-making is a complex, multidimensional cognitive function that requires the choice between two or more options and also the predictive analysis of its consequences. One of the tools most widely used to assess decision-making in neuropsychological research is the Iowa Gambling Task (IGT). Objective: To conduct a systematic review of articles reporting empirical IGT studies based in Brazil. Method: Articles were obtained from multiple journal databases including ISI Web of Knowledge, Scopus, SciELO, LILACS, and Scholar Google. Results: Thirty-six studies were included in this review and divided into four categories according to main subject matter (psychiatry & personality; demographic & cultural variables; medical/clinic; and psychometric properties & test administration standardization). In general, there was a significant growth in research employing IGT (Χ² = 17.6, df = 5, p = 0.0003), but this growth was restricted to a few geographic areas of Brazil. The psychiatry & personality subject matter was the most abundant, accounting for 14 publications (39% of the total sample). Conclusion: Since its first adaptation to Brazilian Portuguese in 2006, a growing interest in decision-making as measured by the IGT can be observed, with psychiatry & personality topics representing a large portion of the scientific inquiry to date. Nevertheless, in order to extend the initial results of Brazilian IGT decision-making research, more studies are necessary - across a more diverse range of topics, including demographic & cultural variables, and psychometric properties & test administration standardization, the areas least studied -, as is the dissemination of the IGT to more regions of the country.

Contexto: A tomada de decisão é uma função cognitiva complexa e multidimensional que envolve a escolha entre duas ou mais opções, bem como a análise preditiva das suas consequências. Um dos instrumentos de pesquisa mais amplamente utilizados para avaliar a tomada de decisão em neurociência é o Iowa Gambling Task (IGT). Objetivo: Realizar uma revisão sistemática de artigos empíricos conduzidos com o IGT no Brasil. Método: Os artigos foram obtidos através de busca nos bancos de dados ISI Web of Knowledge, Scopus, SciELO, LILACS e Scholar Google. Resultados: Trinta e seis estudos foram incluídos e divididos em quatro categorias de acordo com o tema principal (variáveis demográficas e culturais; psiquiatria e personalidade; variáveis médico-genéticas e saúde geral; e propriedades psicométricas e padronização de aplicação). Em geral, houve um crescimento significativo da pesquisa utilizando o IGT (Χ² = 17,6, gl = 5, p = 0,0003), porém restrito a algumas áreas geográficas brasileiras. O eixo temático de psiquiatria e personalidade foi o que mais produziu estudos, contabilizando 14 publicações (39% da amostra total). Conclusão: Desde sua primeira adaptação para o português brasileiro em 2006, pode-se observar um crescente interesse pela tomada de decisão medida pelo IGT, sendo assuntos relacionados ao tema psiquiatria e personalidade responsáveis por grande parte dos estudos realizados até o momento. No entanto, para ampliar os resultados iniciais da pesquisa nacional com o IGT, mais estudos são necessários - com uma amplitude maior de áreas temáticas, incluindo as categorias menos estudadas até o momento: variáveis demográficas e culturais e propriedades psicométricas e padronização de aplicação - bem como uma maior disseminação do IGT em outros centros regionais do país.

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O construto Funções Executivas (FE) é um grupo de processos composto por múltiplos componentes, porém ainda é insuficiente definido e operacionalizado. Podem ser considerados, pela participação de processamentos emocionais, “frios” e “quentes”. O objetivo deste estudo foi correlacionar o construto Tomada de Decisão (TD), considerado uma FE “quente”, avaliado pelo Iowa Gambling Task (IGT), com outros componentes executivos avaliados pelos Teste Wisconsin de Classificação de Cartas (WSCT), do Trail Making Test (TMT) e do Hayling Test. Em relação ao desempenho global do IGT, somente foi encontrada relação inversa com o tempo da parte B do Hayling Test, sugerindo que a velocidade de inibição pode se relacionar diretamente com uma TD vantajosa. Foram encontradas correlações inversas entre o desempenho no primeiro bloco do IGT e outros escores dos três instrumentos de FE, indicando um processamento distinto no início deste paradigma. Uma possível hipótese é que mecanismos explícitos mais necessários nas outras tarefas executivas poderiam ter uma associação negativa com o desempenho no início do IGT, em que um processamento implícito e emocional é privilegiado. Sugerem-se estudos sobre a relação do construto mensurado pelo IGT com outras FE consideradas “quentes”

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O construto Funções Executivas (FE) é um grupo de processos composto por múltiplos componentes, porém ainda é insuficiente definido e operacionalizado. Podem ser considerados, pela participação de processamentos emocionais, “frios” e “quentes”. O objetivo deste estudo foi correlacionar o construto Tomada de Decisão (TD), considerado uma FE “quente”, avaliado pelo Iowa Gambling Task (IGT), com outros componentes executivos avaliados pelos Teste Wisconsin de Classificação de Cartas (WSCT), do Trail Making Test (TMT) e do Hayling Test. Em relação ao desempenho global do IGT, somente foi encontrada relação inversa com o tempo da parte B do Hayling Test, sugerindo que a velocidade de inibição pode se relacionar diretamente com uma TD vantajosa. Foram encontradas correlações inversas entre o desempenho no primeiro bloco do IGT e outros escores dos três instrumentos de FE, indicando um processamento distinto no início deste paradigma. Uma possível hipótese é que mecanismos explícitos mais necessários nas outras tarefas executivas poderiam ter uma associação negativa com o desempenho no início do IGT, em que um processamento implícito e emocional é privilegiado. Sugerem-se estudos sobre a relação do construto mensurado pelo IGT com outras FE consideradas “quentes”

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OBJETIVO: Atualmente, tem havido um interesse crescente nos aspectos "quentes" das funções executivas relacionados ao córtex orbitofrontal, em particular na tomada de decisão afetiva em crianças e adolescentes. Revisamos a literatura sobre a avaliação da tomada de decisão em crianças e adolescentes utilizando o paradigma do Iowa Gambling Task e derivados. MÉTODO: Pesquisamos artigos publicados de 2000 a 2009, indexados no Lilacs e no PubMed e que estudaram crianças e/ou adolescentes até 16 anos. Os artigos foram analisados de acordo com os paradigmas utilizados nos estudos, as conclusões sobre o desenvolvimento no processo de tomada de decisão e a capacidade de distinção entre a população clínica e os controles. RESULTADOS: Trinta e seis artigos foram selecionados. Os estudos envolvendo crianças e adolescentes ainda são poucos quando comparados àqueles realizados com população adulta. Foram desenvolvidas diversas versões derivadas do paradigma IGT a fim de estudar a tomada de decisão em crianças e adolescentes. CONCLUSÃO: O IGT é o instrumento mais utilizado. Em pré-escolares, versões simplificadas têm sido utilizadas com maior frequência. Os diferentes paradigmas se mostram úteis na diferenciação entre sujeitos normais e com transtornos psiquiátricos. Os resultados se relacionam de forma positiva e significativa com a frequência de comportamentos impulsivos em populações não clínicas.

OBJECTIVE: Nowadays there has been growing interest in the "hot" aspects of the executive functions related to the orbitofrontal cortex (OFC), in particular in the affective decision-making process in children and adolescents. We reviewed the available literature about the evaluation of decision making in children and adolescents. METHOD: We searched for papers published from 2000 to 2009 that studied children and/or adolescents until the age of 16 in the Lilacs and PubMed index. The papers were analyzed according to the paradigms used in the studies, the conclusions about the development of the decision-making process, and the ability to distinguish between the clinical population and the controls. RESULTS: Thirty-six papers were selected. Compared to the amount of studies of adults, there are still few studies focusing on children and adolescents. Several versions derived from the IGT were developed in order to study decision-making processes in children and adolescents. DISCUSSION: The IGT is the most used instrument. In preschoolers, simplified versions have been used with greater frequency. The different paradigms are useful in differentiating between normal and psychiatric disorder patients. The results are positively and significantly related to the frequency of impulsive behaviors in nonclinical populations.

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