Pattern reversal chromatic VEPs like onsets, are unaffected by attentional demand

Attention has been shown to modulate the visual evoked potential (VEP) recorded to reversing achromatic patterns. However, the chromatic onset VEP appears to be robust to attentional shifts. Functional magnetic resonance imaging (fMRI) responses to both chromatic and achromatic reversing patterns ar...

Full description

Saved in:
Bibliographic Details
Published in:Visual neuroscience 2024-12, Vol.41, p.E006
Main Authors: Arthur, Christabel, Kavcar, Osman B., Wise, Mackenzie V., Crognale, Michael A.
Format: Article
Language:English
Subjects:
Adult
Attention
Attention - physiology
Attention task
Color Perception - physiology
Evoked Potentials, Visual - physiology
Female
Functional magnetic resonance imaging
Humans
Magnetic Resonance Imaging
Male
Pattern Recognition, Visual - physiology
Photic Stimulation
Reaction Time - physiology
Visual evoked potentials
Visual pathways
Visual Pathways - physiology
Visual perception
Visual stimuli
Young Adult
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Attention has been shown to modulate the visual evoked potential (VEP) recorded to reversing achromatic patterns. However, the chromatic onset VEP appears to be robust to attentional shifts. Functional magnetic resonance imaging (fMRI) responses to both chromatic and achromatic reversing patterns are also affected by attention. Resolution and comparison of these results is problematic due to differences in presentation mode, stimulus parameters, and the source of the response. Here, we report the results of experiments using comparable perceptual contrasts, pattern reversals, and a co-extensive and highly demanding multiple object tracking (MOT) task while exploring the effects of attentional modulation across both the chromatic (L − M) and (S − (L + M)) and the achromatic visual pathways. Our findings indicate that although achromatic VEPs are modulated by attention, chromatic VEPs are more robust to attentional modulation, even when using comparable stimulus presentation modes and in the presence of a highly demanding distractor task. In addition, we found that the majority of the modulation appears to be from a relative decrease in response due to the distractor task rather than a relative increase in response during heightened attention to the stimulus.
ISSN:0952-5238
1469-8714
DOI:10.1017/S0952523824000063