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Chronotype and Time of Day (ToD) can modulate several aspects of cognitive performance. However, there is limited evidence about the effect of these variables on face recognition performance, so the aim of the present study is to investigate this influence. For this, 274 participants (82.5% females; age 18-49 years old, mean = 27.2, SD = 1.82) were shown 20 short videoclips, each gradually morphing from a general identity unfamiliar face to a famous face. Participants should press the spacebar to stop each video as soon as they could identify the famous face, and then provide the name or an unequivocal description of the person. Analysis of response times (RT) showed that evening-types recognised the faces faster than morning-types. Considering different ToD windows, the effect of chronotype was only significant in the 13h-17h and in the 21h-6h time-windows. Altogether, results suggest an advantage of evening-types on famous face recognition using dynamic stimuli with morning-types, being particularly slower during their non-optimal period.

El cronotipo y la hora del día pueden modular varios aspectos del rendimiento cognitivo. Sin embargo, existen pocas pruebas sobre el efecto de estas variables en el rendimiento en el reconocimiento de caras, por lo que el objetivo del presente estudio es investigar esta influencia. Para ello, se mostraron a 274 participantes (82.5% mujeres; edad 18-49 años, media = 27.2, DE = 1.82) 20 videoclips cortos, cada uno de los cuales pasaba gradualmente de una cara desconocida de identidad general a una cara famosa. Los participantes debían pulsar la barra espaciadora para detener cada vídeo en cuanto pudieran identificar la cara famosa y, a continuación, proporcionar el nombre o una descripción inequívoca de la persona. El análisis de los tiempos de respuesta (TR) mostró que los participantes vespertinos reconocían las caras más rápidamente que los matutinos. Considerando diferentes ventanas de hora del día, el efecto del cronotipo solo fue significativo en las ventanas temporales de 13h-17h y de 21h-6h. En conjunto, los resultados sugieren una ventaja de los tipos vespertinos en el reconocimiento de caras famosas al utilizar estímulos dinámicos, siendo los tipos matutinos particularmente más lentos durante su periodo no óptimo.

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Long-term memory is achieved through a consolidation process where structural and molecular changes integrate information into a stable memory. However, environmental conditions constantly change, and organisms must adapt their behavior by updating their memories, providing dynamic flexibility for adaptive responses. Consequently, novel stimulation/experiences can be integrated during memory retrieval; where consolidated memories are updated by a dynamic process after the appearance of a prediction error or by the exposure to new information, generating edited memories. This review will discuss the neurobiological systems involved in memory updating including recognition memory and emotional memories. In this regard, we will review the salient and emotional experiences that promote the gradual shifting from displeasure to pleasure (or vice versa), leading to hedonic or aversive responses, throughout memory updating. Finally, we will discuss evidence regarding memory updating and its potential clinical implication in drug addiction, phobias, and post-traumatic stress disorder.

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This study aimed to assess the effects of environmental enrichment for pigs during transportation in different phases of their productive cycle. Two trials were conducted, the first during transportation of pigs from the piglet production unit (PPU) to the nursery (n = 250) and the second during the transportation of nonhuman animals from the finishing unit (FU) to the slaughterhouse (n = 120). This work was an observational study with five environmental enrichments: Control - no enrichment; object - use of enrichment objects in the truck; aroma - use of lavender aroma in the truck; music - music in the truck; and vehicle sound. Animal behavior during transportation, respiratory rate, skin surface temperature, and skin lesion score were assessed. Piglets from the treatment music had the lowest frequency of agonistic behaviors during transportation from the farrowing to the nursery and lower skin temperature after transportation. Piglets from the control had the highest respiratory rate prior to transportation. Pigs familiarized with vehicle noises spent most of their time lying during the trip to the slaughterhouse. The creation of a familiar environment to pigs seems promising in enhancing animal well-being during transportation.

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The way our brain processes personal familiarity is still debatable. We used searchlight multivoxel pattern analysis (MVPA) to identify areas where local fMRI patterns could contribute to familiarity detection for both faces and name categories. Significantly, we identified cortical areas in frontal, temporal, cingulate, and insular areas, where it is possible to accurately cross-classify familiar stimuli from one category using a classifier trained with the stimulus from the other (i.e., abstract familiarity) based on local fMRI patterns. We also discovered several areas in the fusiform gyrus, frontal, and temporal regions-primarily lateralized to the right hemisphere-supporting the classification of familiar faces but failing to do so for names. Also, responses to familiar names (compared to unfamiliar names) consistently showed less activation strength than responses to familiar faces (compared to unfamiliar faces). The results evinced a set of abstract familiarity areas (independent of the stimulus type) and regions specifically related only to face familiarity, contributing to recognizing familiar individuals.

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With advancing age, individuals experience a gradual decline in recollection, the ability to retrieve personal experiences accompanied by details, such as temporal and spatial contextual information. Numerous studies have identified several brain regions that exhibit age-related activation differences during recollection tasks. More recently, an increasing number of studies have provided evidence regarding how brain connectivity among the regions supporting recollection contributes to the explanation of recollection deficits in aging. However, brain connectivity evidence has not been examined jointly to provide an integrative view of how these new findings have improved our knowledge of the neurofunctional changes underlying the recollection deficits associated with aging. Therefore, the aim of the present study was to examine functional magnetic resonance imaging (fMRI) studies that employed one of the numerous methods available for analyzing brain connectivity in older adults. Only studies that applied connectivity analysis to data recorded during episodic recollection tasks, either during encoding or retrieval, were assessed. First, the different brain connectivity analysis methods and the information conveyed were briefly described. Then, the brain connectivity findings from the different studies were described and discussed to provide an integrative point of view of how these findings explain the decline in recollection associated with aging. The studies reviewed provide evidence that the hippocampus consistently decreased its connectivity with the parahippocampal gyrus and the posterior cingulate cortex, essential regions of the recollection network, in older adults relative to young adults. In addition, older adults exhibited increased connectivity between the hippocampus and several widespread regions compared to young adults. The increased connectivity was interpreted as brain intensification recourse to overcome recollection decay. Additionally, suggestions for future research in the field are outlined.

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Episodic memory allows us to remember three main elements regarding an event: what (it is), where (it is in space), and when (it appears). The brain's electrical activity signaling the occurrence of these processes has been studied separately, revealing different patterns of ERP components and changes in the EEG theta band amplitude. However, how these patterns signal the retrieval of the temporal and spatial contexts of the same episode is unknown. The objective of this study was to evaluate the ERP components and the EEG theta band in association to the retrieval of the what, where, and when of the same episode through a source memory task. Three types of trials were identified here: total retrieval (what, where, and when), spatial retrieval (what and where), and correct rejections (correctly identified as new items). Attentional components, N200 and P300, and theta band were sensitive to the amount of information retrieved from episodic memory. Total retrieval and spatial trials elicited higher mean amplitude of FN400 and LPC, familiarity and recollection markers, respectively, than correct rejections. Our results suggest that early attention mechanisms can discern the strength of retrieval; in turn, familiarity and recollection mechanisms participate in the retrieval of the main contexts of episodic memory, but not in a cumulative way.

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Recognizing and sharing emotions are essential for species survival, but in some cases, living with a conspecific in distress condition may induce negative emotional states through empathy-like processes. Studies have reported that stressors promote psychiatric disorders in both, those who suffer directly and who witness these aversive episodes, principally whether social proximity is involved. However, the mechanisms underlying the harmful outcomes of emotional contagion need more studies, mainly in the drug addiction-related behaviors. Here, we investigated the relevance of familiarity and the effects of cohabitation with a partner submitted to chronic stress in the anxiety-like, locomotor sensitization, and consolation behaviors. Male Swiss mice were housed in pairs during different periods to test the establishment of familiarity and the stress-induced anxiety behavior in the elevated plus maze. Another cohort was housed with a conspecific subjected to repeated restraint stress (1 h/day) for 14 days. During chronic restraint the allogrooming was measured and after the stress period mice were tested in the open field for evaluation of anxiety and locomotor cross-sensitization induced by methamphetamine. We found that familiarity was established after 14 days of cohabitation and the anxiogenic behavior appeared after 14 days of stress. Repeated restraint stress also increased anxiety in the open field test and induced locomotor cross-sensitization in the stressed mice and their cagemates. Cagemates also exhibited an increase in the consolation behavior after stress sessions when compared to control mice. These results indicate that changes in drug abuse-related, consolation, and affective behaviors may be precipitated through emotional contagion in familiar conspecifics.

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Longevity of odour memories, particularly those acquired during early development, has been documented in a wide range of taxa. Here, we report that kittens of the domestic cat retained a memory into adult life of their mother´s body odour experienced before weaning. Kittens from 15 litters were tested when permanently separated from their mother at weaning on postnatal week 8, and tested again when 4 and 6 months and over 1 year of age. When presented with a simultaneous three-way choice between body odour of their own mother, of an unknown female of similar reproductive condition and a blank stimulus, weaning-age kittens sniffed the cotton swab with the odour of an unknown female longer. This preference, however, changed when as adults the subjects sniffed the cotton swab with their own mother's odour longer. We conclude that kittens form a long-lasting memory of the body odour of their mother, and by implication, that mothers retain an individual odour signature sufficiently stable across age and changes in their reproductive state to be distinguishable by their adult offspring. What this means in functional or cognitive terms is not yet clear. Does such "recognition" have a specific biological function and a specific cognitive representation? Or is it rather part of a more general phenomenon well known in (human) olfaction of odours that are familiar generally being judged more pleasant, and that might then influence olfactory-guided behaviour in a variety of contexts?

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The Environmental Risk Assessment (ERA) of genetically modified (GM) crops in Argentina is carried out by the National Advisory Commission on Agricultural Biotechnology (CONABIA) and the Innovation and Biotechnology Coordination (CIyB). Both have a large experience with this assessment, since 1991, when CONABIA was created. The continuous support to biotechnology as a state policy and as part of the decision to encourage developers in the regulatory process has helped make progress in the revision of the regulations. The experience gained during the last 30 years and the worldwide scientific advances supported the bases to update the regulatory framework. Focusing on the biosafety strengthening and the improvement of the applicant's experience in the GM crops evaluation process, during 2020 and 2021, the ERA went through a reviewing process. Some important modifications were made, such as (i) the assessment of stacked GM crops with focus on the possible interactions between transgenes and the expression products, (ii) the strengthening of the ERA taking into account the transportability of data and conclusions from the Confined Field Trials (CFTs), (iii) the adoption of Familiarity and History of Safe Use (HOSU) concepts on the risk assessment of the expression products, (iv) the special considerations for the unintended effects of insertional sites, and (v) as a post commercial release of GM crops, the Insect Resistance Management Plan (IRMP) was reformulated. These novel approaches enhance the ERA; they make it more efficient by applying the science criteria and the accumulated experience and scientific bibliography on the topic.

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Em razão do número significativo de crianças maiores e adolescentes disponíveis para o processo de adoção no Cadastro Nacional de Adoção, e de a idade representar um fator de restrição e obstáculo para os pretendentes à adoção, torna-se necessário desmistificar as crenças enraizadas sobre adoção tardia. Pensando nessas questões, o presente estudo objetiva compreender os aspectos psicológicos e comportamentais das crianças e dos pais por adoção, comumente presentes no período de adaptação e convivência pós-adotiva, e analisar as atitudes dos pais diante dos obstáculos, observando a eficácia da preparação necessária aos pretendentes à adoção. Para tanto, a metodologia adotada consistiu inicialmente em embasar teoricamente a adoção tardia e suas fases de adaptação, com fundamentação psicanalítica, para a compreensão abrangente do assunto, e em uma pesquisa de campo com dois casais, pais por adoção que se encontravam no período de convivência de seis meses a um ano, para coletar dados relevantes e os correlacionar com a teoria. Por meio dos resultados obtidos, foram apontados os estágios de convivência e os aspectos psicológicos envolvidos nesse processo, bem como a importância de os pretendentes à adoção se instrumentalizarem com informações e se prepararem para a filiação afetiva. Assim, mesmo com todas as dificuldades que possam surgir no processo de adaptação na adoção tardia, em virtude de fatores como idade, preconceitos, mitos e histórico prévio de vida da criança, conclui-se que o afeto e a adoção recíproca prevalecem a qualquer desafio e que, se a experiência da adoção tardia for bem orientada, pode apresentar excelentes resultados.(AU)

Before the significant number of older children and adolescents available for adoption in the National Adoption Register, and considering age as both a restriction factor and an obstacle, rooted beliefs concerning late adoption must be demystified. In this scenario, this study aimed to understand the psychological and behavioral features of children and their adopting parents during the adjustment period soon after adoption, besides analyzing parents' attitudes toward obstacles in light of the necessary preparation on the part of couples intending to adopt. Based on psychoanalytical principles, this study first sets the theoretical foundations of late adoption and its adjustment phases to reach a comprehensive understanding of the issue. To collect data and relate them to the underlying theory, a field research was conducted with two adopting couples in the adjustment period, which ranges from six months to a year. The results indicate the adjustment phases and psychological features underlying this process, besides stressing the importance of parents who intend to adopt for searching for information on the issue and preparing themselves for an affective adoption. Despite the difficulties in late-adoption adaptation - due to age, prejudices, myths, and the previous lives of children, - affection and mutual adoption can overcome any challenges that may arise. Moreover, if the late adoption process is adequately guided, it may present excellent results.(AU)

Debido al número significativo de niños mayores y adolescentes disponibles para el proceso de adopción en el Catastro Nacional de Adopción, y siendo la edad un factor de restricción y obstáculo para los adoptantes, es necesario desmitificar las creencias en relación a la adopción tardía. En este sentido, el presente trabajo tiene por objeto comprender los aspectos psicológicos y comportamentales de los niños y de los padres por adopción, comúnmente presentes en el período de adaptación y convivencia postadoptiva, así como analizar las actitudes de los padres ante a los obstáculos, observando la eficacia de la preparación necesaria para los aspirantes a adopción. Para ello, la metodología adoptada consistió inicialmente en basar teóricamente la adopción tardía y sus fases de adaptación, con fundamentación psicoanalítica, para una comprensión más amplia del asunto, y una investigación de campo con dos parejas, que son padres por adopción entre seis meses a un año, para recoger datos relevantes y correlacionarlos con la teoría. Los resultados apuntan las etapas de convivencia y los aspectos psicológicos que involucran este proceso, así como la importancia de los aspirantes a adopción para conseguir informaciones y prepararse para la filiación afectiva. Incluso con todas las dificultades que puedan surgir en el proceso de adaptación en la adopción tardía, en virtud de la edad, de los prejuicios, mitos y por el histórico previo de vida que el niño carga, se concluye que el afecto y la adopción recíproca prevalecen ante cualquier desafío y que si bien orientada la experiencia de la adopción tardía se puede presentar excelentes resultados.(AU)

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Nossa capacidade de armazenamento é maior para estímulos com os quais estamos mais familiarizados. No entanto, os processos específicos afetados pela familiaridade ainda são pouco conhecidos. Nós investigamos o efeito da familiaridade sobre a recuperação de representações visuais em uma tarefa de reconhecimento utilizando o paradigma de dicas retroativas. Uma tarefa de interferência visual irrelevante (Ruído Visual Dinâmico) foi utilizada como indicador da natureza visual das representações recuperadas. A familiaridade, definida como a exposição repetida ao mesmo conjunto de estímulos, foi manipulada entre dois grupos de participantes. Para um grupo (Grupo com Estímulos Repetidos) as provas experimentais continha estímulos sorteados de um mesmo conjunto de 8 (oito) caracteres chineses. Para o outro grupo (Grupo com Estímulos Inéditos) as provas eram formadas por estímulos inéditos, sorteados de um conjunto de 483 caracteres chineses. O RVD foi apresentado no intervalo entre a dica retroativa e o estímulo teste em metade das provas. O desempenho de ambos os grupos na tarefa de reconhecimento melhora ao longo da sessão, mas de forma mais acentuada no grupo que trabalhou com Estímulos Repetidos. O efeito da dica se mantem inalterado ao longo da sessão e independe da familiaridade, entretanto a representação mais familiar mostra-se mais suscetível à interferência do RVD, sugerindo que a exposição repetida aos mesmos estímulos permitiu a geração de representações visuais.

Our ability to save is greater for more familiar stimuli than for less familiar. However, the specific processes affected by familiarity are still less known. We investigate the familiarity effect on the retrieval of visual representations in a recognition task, using the retroactive cue paradigm. A visual interference task (DVN-Dynamic Visual Noise) was used as visual nature indicator of recovered representations. The familiarity, defined as to the repeated exposure to the same stimuli set, was manipulated between two groups of participants. For one group (Group with Repeated Stimuli) the experimental tests contained stimuli drawn from the same set of 8 Chinese characters. For the other group (Group with Unpublished Stimuli) the tests were formed by unpublished stimuli, drawn from a set of 483 Chinese characters. DVN was presented in the interval between the retroactive tip and the test stimulus in half the tests. The performance of both groups improves on the task recognition throughout the experimental session, but more sharply at the group that worked with Repeated Stimuli. The retrieval effect remains unchanged throughout the session and independs of familiarity, however the more familiar representation is more susceptible to DVN, suggesting the repeated exposure to the same stimuli allowed the generation of visual representations.

Nuestra capacidad de almacenamiento es mayor para estímulos familiares que para los estímulos poco familiares. Sin embargo, los procesos específicos afectados por la familiaridad son poco conocidos. Nosotros investigamos el efecto de la familiaridad sobre la recuperación de las representaciones visuales en una tarea de reconocimiento usando el paradigma de pistas retroactivas. Una tarea de interferencia visual irrelevante (Ruido Visual Dinámico) fue utilizada como indicador de la naturaleza visual de las representaciones recuperadas. La familiaridad, definida como la exposición repetida al mismo conjunto de estímulos, fue manipulada entre dos grupos de participantes. Para un grupo (Grupo con Estímulos Repetidos) las pruebas experimentales contenían estímulos sorteados de un mismo conjunto de 8 caracteres chinos. Para el otro grupo (Grupo con Estímulos Inéditos) las pruebas eran formadas por estímulos inéditos, sorteados de un conjunto de 483 caracteres chinos. El RVD fue presentado en el intervalo entre pista retroactiva y el estímulo test en la mitad de las pruebas. El desempeño de ambos los grupos en la terea de reconocimiento mejora a lo largo de la sesión experimental, pero mejora de forma más acentuada en el grupo que trabajó con los Estímulos Repetidos. El efecto de las pistas retroactivas se mantiene inalterado a lo largo de la sesión y no depende de la familiaridad, por otro lado, la representación más familiar se muestra más susceptible a la interferencia del RVD, sugiriendo que la exposición repetida a los mismos estímulos permitió la generación de representaciones visuales

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In two experiments, 3- to 5-year-old children were tested for their preferences when seeking and accepting information about novel animals. In Experiment 1, children watched as two adults named unfamiliar animals - one adult was predominantly accurate, whereas the other was predominantly inaccurate, as judged by a teacher. In a subsequent test phase, participants viewed additional unfamiliar animals and were invited to endorse one of two conflicting names. Either the predominantly accurate or the predominantly inaccurate adult proposed one name, whereas a majority of three unfamiliar adults proposed the other name. Children were more likely to endorse the predominantly accurate adult as compared to the majority but showed no significant preference for the predominantly inaccurate adult as compared to the majority. In Experiment 2, participants watched two adults correctly name three familiar animals, but only one named three additional unfamiliar animals whereas the other expressed uncertainty. On subsequent test trials, children preferred the apparently well-informed adult to the less-informed adult but, contrary to the results of Experiment 1, children preferred the information provided by a majority instead of the apparently well-informed adult. The implications of these results are discussed in the light of previous research on children's selective trust in an accurate informant as compared to a consensus. Statement of contribution What is already known on the subject? Young children monitor past accuracy and use this epistemic cue to decide whom to trust; Children are receptive to information coming from a consensus; Non-epistemic cues, such as familiarity and accent, also influence children's deference What does this study adds? Children favour a dissenter over a majority if the dissenter's past accuracy has been publicly highlighted. They favour a majority if a dissenter's past accuracy has not been publicly highlighted. A confident informant is preferred to a hesitant informant.

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Problem formulation is the formal opening stage of a risk assessment that determines its purpose and scope and hence guides the gathering of information data. The concepts of familiarity and history of safe use are an integral part of problem formulation. These concepts do not replace the case-by-case approach and are not taken as safety standards but are valuable components of the process that shape the generation of plausible, testable risk hypotheses. The International Life Sciences Institutes in Brazil and Argentina have facilitated numerous discussions on the scientific principles for risk assessment of transgenic crops in the Latin American region in the past 5-6 years. The session held at ISBR 15th elaborated on the familiarity concept and derived tools and their role in the evolution of risk evaluation criteria. Examples of how different countries in the Americas interpret and apply these conceptual tools show that familiarity is a valuable concept, although terms are very often confused and vaguely defined. Formalizing these terms with clear definitions and scope of application in guidelines and regulatory documents would reduce ambiguity, enhance predictability, and add transparency to the evaluation processes.

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Resumen El objetivo de este estudio, consistió en evaluar la familiaridad subjetiva (FS) de 827 palabras en 187 niños de segundo grado de educación primaria de la ciudad de Medellín. Las palabras, fueron extraídas de diferentes textos escolares y se ajustaron a tres parámetros psicolingüísticos: consistencia ortográfica, estructura silábica y longitud. En la prueba realizada, los niños debían indicar si conocían nada, poco, mucho o muchísimo cada una de las palabras seleccionadas. De acuerdo con esto, se asignó un valor numérico a cada palabra. Un análisis estadístico de las medianas de las palabras, permitió seleccionar 405 palabras con FS alta y 422 palabras con FS baja. Los resultados, muestran que los parámetros psicolingüísticos propuestos se relacionan con la FS.

Abstract The aim of this study was to assess the subjective familiarity of 827 words in 187 second-grade children from the city of Medellín. The words were taken from textbooks and adjusted to three psycholinguistic parameters: orthographic consistency, syllabic structure and length. In these tests, the children had to indicate whether they knew each of the words and according to their responses, a numerical value was assigned. A statistical analysis of the medians allowed the selection of 405 words of high subjective familiarity y 422 words of low subjective familiarity. The results show that the proposed psycholinguistic parameters relate to subjective familiarity.

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BACKGROUND: Saccade slowing has been proposed as endophenotype marker in Spinocerebellar Ataxia type 2 (SCA2), nevertheless the heritability of this trait has not been properly demonstrated. Thus the present paper was aimed to assess the heritability of different saccadic parameters in SCA2. METHODS: Forty-eight SCA2 patients, 25 preclinical carriers and 24 non-SCA2 mutation carriers underwent electronystagmographical assessments of saccadic eye movements as well as neurological examination and ataxia scoring. Estimates of heritability based on the intraclass correlation coefficients were calculated for saccade velocity, accuracy and latency as well as for age at disease onset from 36, 17 and 15 sibling pairs of SCA2 patients, preclinical carriers and controls, respectively. RESULTS: Saccade velocity was significantly reduced in SCA2 patients and preclinical carriers, whereas decreased saccade accuracy and increased saccade latency were only observed in the patients cohort. Intraclass correlation coefficient for saccade velocity was highly significant in SCA2 patients, estimating a heritability around 94%, whereas for the age at ataxia onset this estimate was around 68%. CONCLUSIONS: Electronystagmographical measure of saccade velocity showed higher familial aggregation between SCA2 patients leading the suitability of this disease feature as endophenotype marker, with potential usefulness for the search of modifier genes and neurobiological underpinnings of the disease and as outcome measure in future neuroprotective clinical trials.

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Previous studies have found that individuals from rural areas in Malaysia and in El Salvador prefer heavier women than individuals from urban areas. Several explanations have been proposed to explain these differences in weight preferences but no study has explored familiarity as a possible explanation. We therefore sought to investigate participants' face preferences while also examining the facial characteristics of the actual participants. Our results showed that participants from rural areas preferred heavier-looking female faces than participants from urban areas. We also found that the female faces from the rural areas were rated as looking heavier than the female faces from the urban areas. Our findings are consistent with the hypothesis that familiarity may be contributing to the differences found in face preferences between rural and urban areas given that people from rural and urban areas are exposed to different faces.

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Introducción. Las destrezas en los procesos de la ciencia forman parte de la alfabetización científica y constituyen un componente muy importante de la enseñanza de las ciencias. Sin embargo, son escasos los estudios en Iberoamérica sobre estas destrezas en la Educación Secundaria. Objetivo. Se trata de un estudio exploratorio para determinar el grado de familiaridad e interés de estudiantes de Secundaria en estas destrezas. Materiales y métodos. A 144 estudiantes de Educación Secundaria españoles de cinco niveles educativos diferentes se les administró un cuestionario en el que se les demanda el grado de familiaridad e interés en las destrezas de los procesos de las ciencia básicas e integradas. Resultados. El grado de familiaridad con las destrezas de los procesos de la ciencia es creciente a medida que se avanza en el nivel académico. Sin embargo, el grado de interés es máximo al principio y al final de la Educación Secundaria. La prueba U de Mann-Whitney revela que no existen diferencias significativas entre las destrezas básicas e integradas. La prueba "chi cuadrado" evidencia una asociación significativa tanto entre el grado de familiaridad y el nivel académico, como entre el grado de interés y el nivel académico. Conclusiones. El grado de familiaridad de los estudiantes de Secundaria con las destrezas de los procesos de la ciencia es aceptablemente bueno (a excepción de tres destrezas integradas) y es significativamente mejor al final de la Educación Secundaria. El grado de interés es bastante alto y es significativamente mayor al principio y al final de la Educación Secundaria.

Introduction. Skills for science processes are a part of scientific literacy and also are a very important component of science teaching. There are, nevertheless, not enough studies in Iberoamerica about these skills in secondary education. Objective. This is an exploratory study that aims to determine the familiarity and interest degrees of secondary education students on these skills. Materials and methods. A questionnaire was given to 144 Spanish secondary students, from five different education levels. In that questionnaire, their familiarity and interest degrees on the skills of the basic and integrated sciences are demanded. Results. The familiarity degree with the sciences processes is growing as the academic level is higher. Nevertheless, the interest degree reaches its maximum levels at the beginning and at the end of the secondary education. The U Mann-Whitney´s test reveals that there are not significant differences between the basic and the integrated skills. The "chi square" test demonstrates a significant association between the familiarity degree and the academic level and between the interest degree and the academic level. Conclusions. The familiarity degree of secondary education students with the skills related to science processes is relatively good (except for three integrated skills) and is significantly better at the end of the secondary education. The interest degree is really high and is significantly higher at the beginning and at the end of the secondary education.

Introdução. As destrezas nos processos da ciência formam parte da alfabetização científica e constitui um componente muito importante do ensino das ciências. Mas, são escassos os estudos na Ibero-América sobre estas destrezas na Educação Secundária. Objetivo. Se trata de um estudo exploratório para determinar o grau de familiaridade e interesse de estudantes de Secundária nestas destrezas. Materiais e métodos. A 144 estudantes de Educação Secundária espanhóis de cinco níveis educativos diferentes se lhes administrou um questionário no qual se lhes demanda o grau de familiaridade e interesse nas destrezas dos processos das ciências básicas e integradas. Resultados. O grau de familiaridade com as destrezas dos processos da ciência é crescente a medida que se avança no nível acadêmico. Mas, o grau de interesse é máximo no princípio e ao final da Educação Secundária. A prova U de Mann-Whitney revela que não existem diferenças significativas entre as destrezas básicas e integradas. A prova "chi quadrado" evidencia uma associação significativa tanto entre o grau de familiaridade e o nível acadêmico, como entre o grau de interesse e o nível acadêmico. Conclusões. O grau de familiaridade dos estudantes de Secundária com as destrezas dos processos da ciência é aceitavelmente bom (a exceção de três destrezas integradas) e é significativamente melhor ao final da Educação Secundária. O grau de interesse é bastante alto e é significativamente maior no princípio e no final da Educação Secundária.

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Experience gained in the risk assessment (RA) of genetically engineered (GE) crops since their first experimental introductions in the early nineties, has increased the level of familiarity with these breeding methodologies and has motivated several agencies and expert groups worldwide to revisit the scientific criteria underlying the RA process. Along these lines, the need to engage in a scientific discussion for the case of GE crops transformed with similar constructs was recently identified in Argentina. In response to this need, the Argentine branch of the International Life Sciences Institute (ILSI Argentina) convened a tripartite working group to discuss a science-based evaluation approach for transformation events developed with genetic constructs which are identical or similar to those used in previously evaluated or approved GE crops. This discussion considered new transformation events within the same or different species and covered both environmental and food safety aspects. A construct similarity concept was defined, considering the biological function of the introduced genes. Factors like environmental and dietary exposure, familiarity with both the crop and the trait as well as the crop biology, were identified as key to inform a construct-based RA process.

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In ewes, the ovulatory response of females exposed to familiar rams is lower than the response of those exposed to novel ones. In goats, males rendered sexually active by exposure to long days are more efficient to induce ovulation in seasonal anestrous females than untreated males. Two experiments were conducted to determine 1) whether male goats remain familiar to females after 45days of separation; and 2) whether photostimulated males are able to stimulate the sexual activity of females, independently of their familiarity with them. In Experiment 1, three groups of goats (n=10 goats per group) were put in contact with males (n=2 per group) during 10days in November (familiarization period). These males were called familiar males. After 15, 30 and 45days of separation from the males, females of each group were exposed to familiar or novel males during 10min. In each test, goats in contact with novel males displayed more distress bleats, escapes, head butts, and sniffing than those in contact with familiar males (P<0.05). In Experiment 2, we used sexually inactive (n=4 control males), and sexually active males (n=4 photostimulated males). In February, two groups of goats (n=50 each) were put in contact with control or photostimulated males (n=2 each) during 10days ("familiar" control or photostimulated male, respectively). After 45days of separation from the males, both groups of females were further divided into two groups (n=25 goats per group). In April, two groups were re-exposed to "familiar" control or "familiar" photostimulated males (n=2 per group), whereas the other two groups were exposed to "novel" control or "novel" photostimulated males (n=2 per group). The photostimulated males displayed a higher level of sexual behavior than the controls. The proportion of goats that ovulated and displayed estrus was higher when exposed to the photostimulated males than when exposed to control ones (≥80% vs. 0%; P<0.05). These proportions did not differ between groups exposed to familiar or novel photostimulated males (P>0.05). We concluded that after 45days of separation, males are still familiar to females. The photostimulated males are able to induce the sexual activity of seasonally anestrous goats independently of their familiarity with them.

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RESUMO

O objetivo do presente estudo foi criar e normatizar um conjunto de 89 estímulos pictóricos para brasileiros adultos de idade intermediária e adultos idosos (40-89 anos). Foram selecionados 89 conceitos verbais de um estudo prévio sobre normas de associação semântica categórica. Todos os conceitos foram representados graficamente e avaliados por três juízes. Posteriormente, cada estímulo pictórico foi normatizado pelos seguintes atributos: concordância conceitual, concordância de nomeação, familiaridade conceitual e complexidade visual. Os resultados sugerem que 93,3% (83) dos estímulos apresentaram concordância conceitual satisfatória. Os demais atributos apresentaram índices de correlação próximos aos observados nos estudos de normatização dos maiores bancos internacionais de estímulos pictóricos. Esses resultados sugeriram a qualidade do conjunto de estímulos e contribuirão tanto para o desenvolvimento do Teste MAPS (Memória e Aprendizagem através de Pistas Seletivas) quanto para a criação de outros instrumentos de avaliação psicológica e cognitiva...

The aim of this study was to create and to standardize a new set of 89 pictorial stimuli for Brazilian middle aged and elderly people (40-89 years). Verbal Concepts (89) were selected from studies that investigated norms semantic association. All concepts are drawn and evaluated by three judges. Thereafter, each pictorial stimulus was standardized on the following attributes: conceptual agreement, naming agreement, conceptual familiarity and visual complexity. At least 93.3% (83) stimuli presented satisfactory conceptual agreement. The other attributes showed correlation coefficients close to those observed in the standardization of the largest international sets pictorial stimuli. These results suggest the quality of this set of pictorial stimuli and will contribute for the development of the test called MAPS (Memory and Learning with Selective Cues) and others psychological assessment tools...

El objetivo del presente estudio fue crear y estandarizar un conjunto de 89 estímulos pictóricos para personas de adultos y ancianos (40-89 años). Se seleccionaron 89 conceptos verbales derivadas de los estudios de estandarización de asociación semántica. Todos los conceptos se representaron y evaluados por tres jueces. Para cada estimulo fue estandarizado para los siguientes atributos: el acuerdo conceptual, el acuerdo de nombramiento, la familiaridad conceptual y la complejidad visual. Una gran parte de los estímulos (93,3%) presentaron acuerdo conceptual satisfactorio y los otros atributos presentan índices compatibles con los conjuntos internacionales de estímulos pictóricos. Estos resultados sugieren que la calidad de este conjunto y contribuirán en la elaboración de un test MAPS (Memoria y Aprendizaje com Pistas Seleccionadas) y otras herramientas de evaluación psicológica...

Assuntos