Autistic traits shape neuronal oscillations during emotion perception under attentional load modulation

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Emotional stimuli capture attention, but cognitive load can disrupt this process.
• Autism Spectrum Disorder (ASD) is associated with differences in emotion perception and attention.

Purpose of the Study:

• To investigate how cognitive load affects emotion perception in autistic and typically developing children.
• To examine the neural underpinnings of emotion processing under varying attentional demands.

Main Methods:

• Electroencephalography (EEG) recorded neuronal oscillations (theta, alpha, beta) during an emotion perception task.
• Attentional load was manipulated using Multiple Object Tracking (MOT) or neutral images.
• Participants included 31 autistic and 31 typically developing children.

Main Results:

• Intermediate cognitive load improved emotion processing in typically developing children but not in autistic children.
• Autistic children exhibited impaired emotional integration and reduced attentional ability.
• Neural patterns of emotion perception and tracking capacity correlated with daily-life autistic behaviors.

Conclusions:

• Autism is characterized by impaired affective processing and selective attention, insensitive to cognitive load.
• Atypical Bayesian updating may underlie poor contextual evaluations in autism.
• This study integrates neural markers of implicit emotion perception with environmental demands to characterize autism.