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Steady-state visually evoked potential is modulated by the difference of recognition condition
Tetsuto Minami1, Kazuki Azuma2, Shigeki Nakauchi2
1Electronics-Inspired Interdisciplinary Research Institute, Toyohashi University of Technology, Toyohashi, Aichi, Japan.
Plos One
|July 3, 2020
Summary
Steady-state visually evoked potentials (SSVEPs) can indicate object recognition. This study found SSVEPs differ based on recognition success, reflecting cognitive state transitions during visual processing.
Area of Science:
- Neuroscience
- Cognitive Science
- Visual Perception
Background:
- Steady-state visually evoked potentials (SSVEPs) are EEG responses to flickering visual stimuli.
- SSVEPs show potential as biomarkers for cognitive processes like object recognition.
Purpose of the Study:
- To investigate if SSVEPs differentiate cognitive states during object recognition.
- To determine if SSVEP components reflect the success of recognizing ambiguous visual stimuli.
Main Methods:
- Participants viewed flickering binary images (BI) followed by grayscale images (GI) of the same object.
- Recognition of BI and GI was self-reported.
- Evoked and induced SSVEP components were analyzed under different recognition conditions.
Main Results:
- SSVEPs elicited by BI were significantly larger than those elicited by GI.
- The induced SSVEP component to GI was smaller when BI was unrecognized compared to when it was recognized.
Conclusions:
- SSVEPs reflect the cognitive transition occurring during the recognition of ambiguous visual information.
- The findings suggest SSVEPs can index dynamic changes in object recognition states.
