Dissociable effects of psychopathic traits on cortical and subcortical visual pathways during facial emotion processing: An ERP study on the N170

• Tipo: Artigo em Revista Científica Internacional
• Data: 2014

Autores

Pedro Almeida (Autor) FDUP; Fernando Ferreira Santos (Autor) FPCEUP; Joana B Vieira (Autor) Outra; Pedro S Moreira (Autor) Outra; Fernando Barbosa (Autor) FPCEUP; João Marques-Teixeira (Autor) FPCEUP

Revista

Título: Psychophysiology

Vol. 51

Páginas: 645-657

ISSN: 0048-5772

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 1 Citação

Scopus - 2 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Medicina básica

Projetos Associados

Jogo do Ultimato - Processamento de Informação Social na Psicopatia: Padrões de Interacção e Correlatos Neurofisiológicos no Jogo do Ultimato

Outras Informações

ID Authenticus: P-009-HRA

DOI: 10.1111/psyp.12209

Abstract (EN): This study examined the relation between psychopathic traits and the brain response to facial emotion by analyzing the N170 component of the ERP. Fifty-four healthy participants were assessed for psychopathic traits and exposed to images of emotional and neutral faces with varying spatial frequency content. The N170 was modulated by the emotional expressions, irrespective of psychopathic traits. Fearless dominance was associated with a reduced N170, driven by the low spatial frequency components of the stimuli, and dependent on the tectopulvinar visual pathway. Conversely, coldheartedness was related to overall enhanced N170, suggesting mediation by geniculostriate processing. Results suggest that different dimensions of psychopathy are related to distinct facial emotion processing mechanisms and support the existence of both amygdala deficits and compensatory engagement of cortical structures for emotional processing in psychopathy.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 13