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Neurofeedback and transcranial Direct Current Stimulation (tDCS) are promising techniques for neuroenhancement of attentional performance. As far as we know no study compared both techniques on attentional performance in healthy participants. We compared tDCS and neurofeedback in a randomized, single-blind, controlled experiment assessing both behavioral (accuracy and time reaction) and electrophysiological (N1, P1, and P3 components) data of participants responding to the Attention Network Task (ANT). Eighty volunteers volunteered for this study. We adopted standard protocols for both techniques, i.e., a Sensorimotor Rhythm (SMR) protocol for neurofeedback and the right DLPFC anodal stimulation for tDCS, applied over nine sessions (two weeks). We did not find significant differences between treatment groups on ANT, neither at the behavioral nor at the electrophysiological levels. However, we found that participants from both neuromodulation groups, irrespective of if active or sham, reported attentional improvements in response to the treatment on a subjective scale. Our study adds another null result to the neuromodulation literature, showing that neurofeedback and tDCS effects are more complex than previously suggested and associated with placebo effect. More studies in neuroenhancement literature are necessary to fully comprehend neuromodulation mechanisms.

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Racial prejudice is associated with a fundamental distinction between "us" and "them"-a distinction linked to the perceived overlap between representations of the self and others. Implicit prejudice has been shown to reduce the intensity of White individuals' hand ownership sensation as induced by the Rubber Hand Illusion (RHI) with dark rubber hands. However, evidence for this link to implicit prejudice comes from self-report questionnaire data regarding the RHI. As an alternative, we assessed the onset time of the RHI. We hypothesized that onset time of the RHI would be higher for the black compared to the white RH, acting as the mediator between implicit prejudice and magnitude of the RH illusion and proprioceptive drift. As expected, participants took longer to incorporate the black RH and presented lower RH illusion magnitude and a smaller proprioceptive drift for the black RH. Mediation analysis revealed a significant indirect effect of implicit racial bias on proprioceptive drift and magnitude of illusion through onset time to illusion only for the black RH. These findings further illuminate the connection between implicit prejudice and embodied perception, suggesting new perspectives on how implicit biases operate.

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Several studies have documented the high prevalence of psychopathology and behavior problems in Williams syndrome (WS). However, the links between cognitive development and such symptoms need further clarification. Our study aims to expand current knowledge on levels of behavior problems and its links to cognition in a sample of Brazilian individuals with WS. A total of 25 children and adolescents with WS and their parents participated in this study. The participants' IQs were assessed with the Wechsler Scales of Intelligence (for children or adults) and parental reports of psychopathology/behavior problems were collected using the Child Behavior Checklist (CBCL). The presence of clinically significant attention problems was a main feature in our sample of children and adolescents with WS. In the children, higher IQ scores were found to be significantly associated with less externalizing problems, while in the adolescents cognitive abilities were found to be associated with less internalizing symptoms. These results provide further insight into the links between psychopathology and behavior problems and cognitive abilities in WS, and suggest the need to take age into consideration when analyzing such relationships.

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Este estudo teve como principal objetivo traduzir e adaptar para língua portuguesa o Índice de Reatividade Interpessoal para Casais (IRIC), analisando as propriedades psicométricas da versão portuguesa. Esse é um instrumento de avaliação da empatia em casais, que resultou da adaptação de uma das mais usadas escalas de empatia, o Índice de Reatividade Interpessoal de Davis, para o contexto das relações íntimas. O IRIC avalia dimensões de empatia cognitiva (tomada de perspetiva) e emocional (preocupação empática), importantes para a estabilidade e satisfação das relações conjugais. A escala original foi traduzida para português e administrada a 148 sujeitos que estavam numa relação amorosa há pelo menos um ano. A maioria dos sujeitos eram mulheres com uma média de idades de 27 anos. Os resultados revelam uma estrutura fatorial semelhante à escala original, valores adequados de consistência interna (alfa de Cronbach=0,82) e bons níveis de validade externa com uma escala de ajustamento diádico.(AU)

The main objective of this study was to translate and adapt the Interpersonal Reactivity Index for Couples (IRIC) to Portuguese, and analyze the psychometric properties of the Portuguese version. This instrument that assesses empathy in couples, resulted from the adaptation of one of the most widely used empathy scales – Davis´s Interpersonal Reactivity Index – for the context of intimate relationships. The IRIC assesses dimensions of cognitive (perspective taking) and emotional (empathic concern) empathy, both essential for stable and satisfactory marital relationships. The original scale was translated to Portuguese and administered to 148 participants involved in an intimate relationship with a minimum duration of one year. Most of the participants were women, with a mean age of 27 years old. Our results revealed the Portuguese version has a factorial structure similar to the original version, adequate internal consistency values (Cronbach’s a=.82), and good external validity with a scale of dyadic adjustment.(AU)

El principal objetivo de este estudio fue traducir y adaptar a la lengua portuguesa el Índice de Reactividad Interpersonal para Parejas (IRIP), analizando las propiedades psicométricas de la versión portuguesa. Este es un instrumento de evaluación de empatía en parejas, que resultó de la adaptación de una de las más usadas escalas de empatía, el Índice de Reactividad de Davis, para el contexto de las relaciones íntimas. El IRIP evalúa dimensiones de empatía cognitiva (toma de perspectiva) y emocional (preocupación empática), importantes para la estabilidad y satisfacción de las relaciones conyugales. La escala original fue traducida al portugués y administrada a 148 sujetos que mantenían una relación amorosa desde hace por lo menos un año. La mayoría de los sujetos eran mujeres con una edad media de 27 años. Los resultados revelaron una estructura factorial semejante a la escala original, valores adecuados de consistencia interna (Cronbach’s a=.82) y buenos niveles de validación externa con una escala de ajustamiento diádico.(AU)

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Este estudo teve como principal objetivo traduzir e adaptar para língua portuguesa o Índice de Reatividade Interpessoal para Casais (IRIC), analisando as propriedades psicométricas da versão portuguesa. Esse é um instrumento de avaliação da empatia em casais, que resultou da adaptação de uma das mais usadas escalas de empatia, o Índice de Reatividade Interpessoal de Davis, para o contexto das relações íntimas. O IRIC avalia dimensões de empatia cognitiva (tomada de perspetiva) e emocional (preocupação empática), importantes para a estabilidade e satisfação das relações conjugais. A escala original foi traduzida para português e administrada a 148 sujeitos que estavam numa relação amorosa há pelo menos um ano. A maioria dos sujeitos eram mulheres com uma média de idades de 27 anos. Os resultados revelam uma estrutura fatorial semelhante à escala original, valores adequados de consistência interna (alfa de Cronbach=0,82) e bons níveis de validade externa com uma escala de ajustamento diádico.

The main objective of this study was to translate and adapt the Interpersonal Reactivity Index for Couples (IRIC) to Portuguese, and analyze the psychometric properties of the Portuguese version. This instrument that assesses empathy in couples, resulted from the adaptation of one of the most widely used empathy scales – Davis´s Interpersonal Reactivity Index – for the context of intimate relationships. The IRIC assesses dimensions of cognitive (perspective taking) and emotional (empathic concern) empathy, both essential for stable and satisfactory marital relationships. The original scale was translated to Portuguese and administered to 148 participants involved in an intimate relationship with a minimum duration of one year. Most of the participants were women, with a mean age of 27 years old. Our results revealed the Portuguese version has a factorial structure similar to the original version, adequate internal consistency values (Cronbach’s a=.82), and good external validity with a scale of dyadic adjustment.

El principal objetivo de este estudio fue traducir y adaptar a la lengua portuguesa el Índice de Reactividad Interpersonal para Parejas (IRIP), analizando las propiedades psicométricas de la versión portuguesa. Este es un instrumento de evaluación de empatía en parejas, que resultó de la adaptación de una de las más usadas escalas de empatía, el Índice de Reactividad de Davis, para el contexto de las relaciones íntimas. El IRIP evalúa dimensiones de empatía cognitiva (toma de perspectiva) y emocional (preocupación empática), importantes para la estabilidad y satisfacción de las relaciones conyugales. La escala original fue traducida al portugués y administrada a 148 sujetos que mantenían una relación amorosa desde hace por lo menos un año. La mayoría de los sujetos eran mujeres con una edad media de 27 años. Los resultados revelaron una estructura factorial semejante a la escala original, valores adecuados de consistencia interna (Cronbach’s a=.82) y buenos niveles de validación externa con una escala de ajustamiento diádico.

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The dorsolateral prefrontal cortex (DLPFC) is involved in the cognitive appraisal and modulation of the pain experience. In this sham-controlled study, with healthy volunteers, we used bi-hemispheric transcranial direct current stimulation (tDCS) over the DLPFC to assess emotional reactions elicited by pain observation. Left-cathodal/right-anodal tDCS decreased valence and arousal evaluations compared to other tDCS conditions. Compared to sham condition, both left-cathodal/right-anodal and left-anodal/right-cathodal tDCS decreased hostility, sadness and self-pain perception. These decreased sensations after both active tDCS suggest a common role for left and right DLPFC in personal distress modulation. However, the differences in arousal and valence evaluations point to distinct roles of lateralized DLPFC in cognitive empathy, probably through distinct emotion regulation mechanisms.

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The objective of this study was to investigate the psycholinguistic abilities of children with Williams syndrome (WS) and typically developing children using the Illinois Test of Psycholinguistic Abilities (ITPA). Performance on the ITPA was analysed in a group with WS (N=20, mean age=8.5 years, SD=1.62) and two typically developing groups, matched in mental (MA, N=20, mean age=4.92 years, SD=1.14) and chronological age (CA, N=19, mean age=8.35 years, SD=3.07). Overall, within-group analyses showed that individuals with WS displayed higher scalar scores on the visual reception and visual association subtests. When groups were compared, we observed inferior performance of the WS group on all ITPA subtests when compared with typically developing groups. Moreover, an interaction between reception and group was found, only the WS group demonstrated superior performance on the visual reception subtest when compared to the auditory reception subtest. Evidence from this study offers relevant contributions to the development of educational intervention programs for children with WS.

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Williams syndrome (WS) is a neurodevelopmental genetic disorder, often referred as being characterized by dissociation between verbal and non-verbal abilities, although the number of studies disputing this proposal is emerging. Indeed, although they have been traditionally reported as displaying increased speech fluency, this topic has not been fully addressed in research. In previous studies carried out with a small group of individuals with WS, we reported speech breakdowns during conversational and autobiographical narratives suggestive of language difficulties. In the current study, we characterized the speech fluency profile using an ecologically based measure--a narrative task (story generation) was collected from a group of individuals with WS (n = 30) and typically developing group (n = 39) matched in mental age. Oral narratives were elicited using a picture stimulus--the cookie theft picture from Boston Diagnosis Aphasia Test. All narratives were analyzed according to typology and frequency of fluency breakdowns (non-stuttered and stuttered disfluencies). Oral narratives in WS group differed from typically developing group, mainly due to a significant increase in the frequency of disfluencies, particularly in terms of hesitations, repetitions and pauses. This is the first evidence of disfluencies in WS using an ecologically based task (oral narrative task), suggesting that these speech disfluencies may represent a significant marker of language problems in WS.

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The objetive of this paper was to test the divergent validity (degree of discrimination) of an anoretic prototype narrative (i.e., communality of themes in the individual, core autobiographical memories), as well different characteristics of the participants which may be associated with the degree of prototype discrimination. Seventy participants diagnosed with anorexia nervosa participated in the study and were asked to indicate their degree of identification with four different narrative prototypes (depressive, agoraphobia, anorexic, alcoholic and drug addiction prototypes). Results did not confirm the divergent validity of the anorexic prototype narrative. Participants tended to identify primarily with the depressive prototype narrative. No significant differences were found between levels of identification with the anorexic prototype and depression, or agoraphobia and alcoholism prototype. The only significant difference found was between the anorexic and drug addiction prototype. However, severity and duration of the clinical condition were found to be associated with the degree of identification of prototype narrative. Results are discussed in terms of a transdiagnostic versus a prototype approach to the eating disorders psychopathology.

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