Details

Autor(en) / Beteiligte

• Filimonov, Dmitri
• Railo, Henry
• Revonsuo, Antti
• Koivisto, Mika

Titel

Modality-specific and modality-general electrophysiological correlates of visual and auditory awareness: Evidence from a bimodal ERP experiment

Ist Teil von

• Neuropsychologia, 2022-02, Vol.166, p.108154-108154, Article 108154

Ort / Verlag

England: Elsevier Ltd

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• 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. •The event-related potential correlates of visual and auditory awareness were compared in the same experiment.•Negative amplitude difference between 200 and 300 ms in each modality is a modality-specific correlate.•Late positivity is a correlate of awareness, which shares both modality-specific and modality-general features.