Modality-specific and modality-general electrophysiological correlates of visual and auditory awareness: Evidence from a bimodal ERP experiment
Filimonov Dmitri; Revonsuo Antti; Koivisto Mika; Railo Henry
Modality-specific and modality-general electrophysiological correlates of visual and auditory awareness: Evidence from a bimodal ERP experiment
Filimonov Dmitri
Revonsuo Antti
Koivisto Mika
Railo Henry
PERGAMON-ELSEVIER SCIENCE LTD
Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2022081154355
https://urn.fi/URN:NBN:fi-fe2022081154355
Tiivistelmä
To date, most studies on the event-related potential (ERP) correlates of conscious perception have examined a single perceptual modality. We compared electrophysiological correlates of visual and auditory awareness in the same experiment to test whether there are modality-specific and modality-general correlates of conscious perception. We used near threshold stimulation and analyzed event-related potentials in response to aware and unaware trials in visual, auditory and bimodal conditions. The results showed modality-specific negative amplitude correlates of conscious perception between 200 and 300 ms after stimulus onset. A combination of these auditory and visual awareness negativities was observed in the bimodal condition. A later positive amplitude difference, whose early part was modality-specific, possibly reflecting access to global workspace, and later part shared modality-general features, possibly indicating higher level cognitive processing involving the decision making, was also observed.
Kokoelmat
- Rinnakkaistallenteet [19207]