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Tracking the processes behind conscious perception: A review of event-related potential correlates of visual consciousness
Department of Psychology, University of Turku, 20014 Turku, Finland / Centre for Cognitive Neuroscience, University of Turku, Turku, Finland.
Department of Psychology, University of Turku, 20014 Turku, Finland / Centre for Cognitive Neuroscience, University of Turku, Turku, Finland.
Högskolan i Skövde, Institutionen för kommunikation och information.ORCID-id: 0000-0002-2771-1588
2011 (Engelska)Ingår i: Consciousness and Cognition, ISSN 1053-8100, E-ISSN 1090-2376, Vol. 20, nr 3, s. 972-983Artikel, forskningsöversikt (Refereegranskat) Published
Abstract [en]

Event-related potential (ERP) studies have attempted to discover the processes that underlie conscious visual perception by contrasting ERPs produced by stimuli that are consciously perceived with those that are not. Variability of the proposed ERP correlates of consciousness is considerable: the earliest proposed ERP correlate of consciousness (P1) coincides with sensory processes and the last one (P3) marks postperceptual processes. A negative difference wave called visual awareness negativity (VAN), typically observed around 200 ms after stimulus onset in occipitotemporal sites, gains strong support for eflecting the processes that correlate with, and possibly enable, aware visual perception. Research suggests that the early parts of conscious processing can proceed independently of top-down attention, although top-down attention may modulate visual processing even before consciousness. Evidence implies that the contents of consciousness are provided by interactions in the ventral stream, but indispensable contributions from dorsal regions influence already low level visual responses.

Ort, förlag, år, upplaga, sidor
Elsevier, 2011. Vol. 20, nr 3, s. 972-983
Nyckelord [en]
ERP, visual, consciousness, awareness, attention
Nationell ämneskategori
Naturvetenskap
Forskningsämne
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:his:diva-5603DOI: 10.1016/j.concog.2011.03.019ISI: 000294515400048PubMedID: 21482150Scopus ID: 2-s2.0-80051663777OAI: oai:DiVA.org:his-5603DiVA, id: diva2:509076
Tillgänglig från: 2012-03-12 Skapad: 2012-03-12 Senast uppdaterad: 2017-12-07Bibliografiskt granskad

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