Open AccessSteady-state visually evoked potential is modulated by the difference of recognition condition
Author(s) -
Tetsuto Minami,
Kazuki Azuma,
Shigeki Nakauchi
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0235309
Subject(s) - stimulus (psychology) , flicker , electroencephalography , audiology , evoked potential , psychology , cognitive neuroscience of visual object recognition , cognition , grayscale , neuroscience , cognitive psychology , visual evoked potentials , artificial intelligence , pattern recognition (psychology) , computer science , object (grammar) , communication , medicine , image (mathematics) , operating system
Recent researches revealed that the EEG component caused by the flickering visual stimulus, which is called steady-state visually evoked potential (SSVEP), might be a potential index for object recognition. This study examined whether SSVEP reflects different states during object recognition. In one trial, a binary image (BI), which is difficult to recognize, was followed by a grayscale image (GI) of the same object as the answer. Both BI and GI were presented in a flickering manner at a frequency of 7.5 Hz. Participants were first asked to answer whether they could recognize BI. Then, after GI was shown, participants were requested to answer whether they recognized it. We analyzed the evoked and induced component of SSVEPs from the two recognition conditions. As a result, the SSVEPs to BI were significantly larger than that to GI. In addition, induced component to GI after the BI was unrecognized was smaller than after the BI was recognized. The present data provide evidence that SSVEPs reflect a transition of cognitive state to ambiguous figures is reflected.