Rapid processing of fearful faces relies on the right amygdala: evidence from individuals undergoing unilateral temporal lobectomy

Autor: Framorando, David, Moses, Eleanor, Legrand, Lore, Seeck, Margitta, Pegna, Alan
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Adult
Male
Facial Recognition / physiology
Adolescent
Science
Fear / psychology
Emotions
Functional Laterality
Neurosurgical Procedures
Article
Young Adult
Epilepsy
Temporal Lobe / physiopathology
Humans
Anterior Temporal Lobectomy / adverse effects
Amygdala / physiology
Amygdala / surgery
Visual Perception / physiology
Anterior Temporal Lobectomy / psychology
Functional Laterality / physiology
Visual Cortex / physiology
Visual Cortex
Epilepsy
Temporal Lobe / surgery
Temporal Lobe / surgery
Cognitive neuroscience
Fear
Epilepsy
Temporal Lobe / psychology
Middle Aged
Amygdala
Anterior Temporal Lobectomy
Temporal Lobe
ddc:616.8
Facial Expression
Temporal Lobe / pathology
Epilepsy
Temporal Lobe
Case-Control Studies
Visual Perception
Neurosurgical Procedures / adverse effects
Medicine
Female
Visual system
Facial Recognition
Zdroj: Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Scientific Reports
Scientific Reports, Vol. 11, No 1 (2021)
ISSN: 2045-2322
Popis: Facial expressions of emotions have been shown to modulate early ERP components, in particular the N170. The underlying anatomical structure producing these early effects are unclear. In this study, we examined the N170 enhancement for fearful expressions in healthy controls as well as epileptic patients after unilateral left or right amygdala resection. We observed a greater N170 for fearful faces in healthy participants as well as in individuals with left amygdala resections. By contrast, the effect was not observed in patients who had undergone surgery in which the right amygdala had been removed. This result demonstrates that the amygdala produces an early brain response to fearful faces. This early response relies specifically on the right amygdala and occurs at around 170 ms. It is likely that such increases are due to a heightened response of the extrastriate cortex that occurs through rapid amygdalofugal projections to the visual areas.
Databáze: OpenAIRE
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