Carles Rostan

Neurophysiological correlates of error monitoring and inhibitory processing in juvenile violent offenders

Performance monitoring is crucial for well-adapted behavior. Offenders typically have a pervasive repetition of harmful-impulsive behaviors, despite an awareness of the negative consequences of their actions. However, the link between performance monitoring and aggressive behavior in juvenile offenders has not been closely investigated. Event-related brain potentials (ERPs) were used to investigate performance monitoring in juvenile non-psychopathic violent offenders compared with a well-matched control group. Two ERP components associated with error monitoring, error-related negativity (ERN) and error-positivity (Pe), and two components related to inhibitory processing, the stop-N2 and stop-P3 components, were evaluated using a combined flanker-stop-signal task. The results showed that the amplitudes of the ERN, the stop-N2, the stop-P3, and the standard P3 components were clearly reduced in the offenders group. Remarkably, no differences were observed for the Pe. At the behavioral level, slower stop-signal reaction times were identified for offenders, which indicated diminished inhibitory processing. The present results suggest that the monitoring of ones own behavior is affected in juvenile violent offenders. Specifically, we determined that different aspects of executive function were affected in the studied offenders, including error processing (reduced ERN) and response inhibition (reduced N2 and P3). However, error awareness and compensatory post-error adjustment processes (error correction) were unaffected. The current pattern of results highlights the role of performance monitoring in the acquisition and maintenance of externalizing harmful behavior that is frequently observed in juvenile offenders.

Neurophysiological correlates of cognitive flexibility and feedback processing in violent juvenile offenders

The persistence of aggressive criminal behavior is recurrently observed in offenders despite being previously advised on the negative consequences of their actions. One possible explanation for the continuation of aggressive behaviors could be that they are the consequence of either possible deficits in cognitive flexibility (set-shifting) or in altered feedback processing. Event-related brain potentials (ERPs) were used to investigate both processes in non-psychopathic violent juvenile offenders. A modified version of the Wisconsin Card Sorting Test (WCST) was used to disentangle the ERP components associated with cognitive set-switching processes (P3) from feedback processing (Frontal-Related Negativity, FRN; P3). The results showed a reduction in the amplitude of the P3 component for the presentation of switch informative signals, related to set-switching processes, in the offender group. Interestingly, a larger amplitude of the P3 related to feedback processing as well as the FRN was observed in this population, probably indicating increased reliance on external feedback processing. At the behavioral level, the offender group presented a larger amount of issues with failures in implementing the new sorting rule. This behavioral pattern could be related to deficits in the ability to switch to another behavior and an altered pattern in processing the feedback information related to the precision of their performance. These observations highlight the possible role of cognitive set-switching and reward sensibility in the maintenance of harmful behaviors in juvenile offenders.

Lenguaje y Teoría de la mente: una aproximación multidimensional

Resumen El propósito de este trabajo es realizar una puesta al día sobre las relaciones entre el desarrollo del lenguaje y el desarrollo de la Teoría de la Mente. Entre las hipótesis propuestas para conceptualizar dichas relaciones, realizamos un examen más exhaustivo de aquellos modelos que apoyan una implicación directa entre lenguaje y Teoría de la Mente. En este contexto, en primer lugar subrayamos la necesidad de ampliar dicha noción para incluir habilidades anteriores y posteriores a la comprensión de la falsa creencia. En segundo lugar, examinamos las diferentes hipótesis acerca de los aspectos del lenguaje más vinculados al desarrollo sociocognitivo, y las principales evidencias empíricas que las sustentan. Finalmente, discutimos un modelo de causalidad recíproca donde los vínculos entre lenguaje y Teoría de la Mente variarán según el momento del desarrollo considerado.

Do children realize that pretend emotions might be unreal

ABSTRACT This research is aimed at comparing childrens understanding of the distinction between external and internal emotion in deception and pretend play situations. A total of 337 children from 4 to 12 years of age participated in the study. Previous research suggests that in deception situations this understanding is very rudimentary at the age of 4 years, whereas 6-year-olds can articulate it in words. In the present work the children were asked to make this distinction in pretend play or deception tasks. The results show that in pretend play situations children start making this distinction at the age of 6 years, and their performance is better when the simulated emotion is negative rather than positive. These findings suggest that 4-year-olds are not aware that the emotions expressed in pretend play situations might be different from internal emotions.

Why Is Theory of Mind Important for Referential Communication

This research studies the relation between children’s Theory of Mind (ToM) and the communicative behaviour and strategies used in a referential communication task. A total of 46 children (aged 6 to 10) were administered 6 ToM tasks, and they also participated in pairs in a cooperative task. Each pair built 4 construction models. Results showed that several ToM skills were related to the communicative behaviours of requesting clarification and giving information. In addition, the most used communicative strategy was Joint review, in which participants reviewed together the location of their blocks. This strategy was the most related to ToM abilities and to cooperative success. The importance of ToM for developing the communicative behaviours and strategies necessary for cooperation is discussed.

Fostering theory of mind development. Short- and medium-term effects of training false belief understanding / Favorecer el desarrollo de la teoría de la mente. Efectos a corto y medio plazo de un entrenamiento en comprensión de la falsa creencia

Abstract This study examines the temporal effect of different trainings designed to favour the development of false belief understanding. A sample of 78 pre-school children aged between three years, five months and three years, 11 months was divided into three training conditions. After three training sessions, they were immediately evaluated in post-test 1 and again a month and a half later in post-test 2. The results showed that the efficiency of the training conditions depended both on the type of linguistic communication and on the use of deceptive objects. Also, the effect of the training was maintained for at least a month and a half after post-test 1 and it was transferred from the trained task to other false belief tasks. The results are commented according to the possibility of using language-based trainings to foster children’s theory of mind understanding in educational contexts.