Journal of Neurodevelopmental Cognition
Quarterly Publication

A Case Study on Pre-stimulus Effect on Face Processing in an Individual with Autism

10.52547/jncog.2022.103428
Volume 1, Issue 1 - Serial Number 1
June 2022
Pages 73-81
Journal of Neurodevelopmental Cognition

Document Type : Original Article

Authors

Narjes Soltani Dehaghani 1
Burkhard Maess 2
Reza Khosrowabadi 1
Mojtaba Zarei 3
Sven Braeutigam 4

1 Institute for Cognitive and Brain Sciences, Shahid Beheshti University, Tehran, Iran

2 Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany

3 Institute for Medical Sciences and Technology, Shahid Beheshti University, Tehran, Iran

4 Oxford Centre for Human Brain Activity, University of Oxford, Oxford, UK

Abstract
Face perception recruits different neural mechanisms in comparison to other objects and individuals with autism show disruptions in facial processing in comparison to other objects. Scientists have reported multiple abnormalities in both the early and late stages of face processing in people who suffer from autism. On the other hand, pre-stimulus oscillation could impact the perception of the incoming stimulus in healthy participants. Yet, the effect of pre-stimulus oscillations on post-stimulus activities in individuals with autism has rarely been investigated. Here we acquired magnetoencephalography (MEG) to explore the role of pre-stimulus alpha oscillations on the face and non-face perception in an autistic participant. Our results showed that the pre-stimulus alpha power in the lateral occipital cortex yielded to the significant separation of post-stimulus activities in the fusiform face area as well as the intra-parietal sulcus in response to human face stimulus.

Keywords

Face Perception
Pre-stimulus Oscillation
Autism
  • Receive Date 05 May 2022
  • Revise Date 04 June 2022
  • Accept Date 05 June 2022

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