The influence of feature-based attention and response requirements on ERP correlates of auditory awareness.

Autor:	Filimonov D; Department of Psychology and Speech-Language Pathology, Faculty of Social Sciences, University of Turku, Turku 20014, Finland.; Turku Brain and Mind Centre, University of Turku, Turku FI-20014, Finland., Krabbe A; Turku Brain and Mind Centre, University of Turku, Turku FI-20014, Finland.; Faculty of Medicine, University of Turku, Turku, FI-20014 Finland.; Faculty of Psychology, Åbo Akademi University, Arken Tehtaankatu 2, Turku 20500, Finland., Revonsuo A; Department of Psychology and Speech-Language Pathology, Faculty of Social Sciences, University of Turku, Turku 20014, Finland.; Turku Brain and Mind Centre, University of Turku, Turku FI-20014, Finland.; Division of Cognitive Neuroscience and Philosophy, University of Skövde, Högskolevägen 1 PO Box 408 541 28, Skövde, Sweden., Koivisto M; Department of Psychology and Speech-Language Pathology, Faculty of Social Sciences, University of Turku, Turku 20014, Finland.; Turku Brain and Mind Centre, University of Turku, Turku FI-20014, Finland.
Jazyk:	angličtina
Zdroj:	Neuroscience of consciousness [Neurosci Conscious] 2024 Jul 23; Vol. 2024 (1), pp. niae031. Date of Electronic Publication: 2024 Jul 23 (Print Publication: 2024).
DOI:	10.1093/nc/niae031
Abstrakt:	In search for the neural correlates of consciousness (NCCs), it is important to isolate the true NCCs from their prerequisites, consequences, and co-occurring processes. To date, little is known about how attention affects the event-related potential (ERP) correlates of auditory awareness and there is contradictory evidence on whether one of them, the late positivity (LP), is affected by response requirements. By implementing a GO-NOGO design with target and nontarget stimuli, we controlled for feature-based attention and response requirements in the same experiment, while participants rated their awareness using a perceptual awareness scale. The results showed a prolonged auditory awareness negativity (AAN) for aware trials, which was influenced neither by attention nor by response requirement. The LP was affected by both attention and response requirements. Consistent with the levels of processing hypothesis, the LP was related to consciousness as a correlate of the processing of higher-level stimulus features, likely requiring access to a "global workspace." Our findings further suggest that AAN is a proper ERP correlate of auditory consciousness and thus a true NCC in the auditory modality. Competing Interests: None declared. (© The Author(s) 2024. Published by Oxford University Press.)
Databáze:	MEDLINE
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