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dc.contributor.authorKURT, A
dc.contributor.authorADEMOGLU, A
dc.contributor.authorDEVRIM, M
dc.contributor.authorDemiralp, Tamer
dc.date.accessioned2021-03-03T09:19:15Z
dc.date.available2021-03-03T09:19:15Z
dc.date.issued1999
dc.identifier.citationDEVRIM M., Demiralp T., ADEMOGLU A., KURT A., "A model for P300 generation based on responses to near-threshold visual stimuli", COGNITIVE BRAIN RESEARCH, cilt.8, sa.1, ss.37-43, 1999
dc.identifier.issn0926-6410
dc.identifier.othervv_1032021
dc.identifier.otherav_1c5f0b70-9e40-4d96-a264-6ee9a9059c6f
dc.identifier.urihttp://hdl.handle.net/20.500.12627/24318
dc.identifier.urihttps://doi.org/10.1016/s0926-6410(99)00007-5
dc.description.abstractNear-threshold and suprathreshold visual ERPs and their frequency components were compared with the aim to obtain further information on the generation mechanism of the P300 wave. Decrease of the stimulus energy from suprathreshold to near-threshold level resulted in an increase of the P300 amplitude specifically in the occipital region. This finding was in contrast with the P300 amplitude decrease in central and frontal regions and its constancy in parietal area. Delta and theta responses showed a similar distribution pattern, whereas alpha responses decreased in all regions as the stimulus energy decreased. We conclude that P300 wave may correspond to a delta oscillation during a widespread, transient interruption of afferent inputs from subcortical structures to the cortical neurons including those in the visual sensory area and simultaneous increase of the cortico-cortical interactions. If visual inputs are of suprathreshold strength, they override this effect specifically in the primary visual area and disrupt the cortico-cortical interactions and the emergence of P300 in the occipital cortex. (C) 1999 Elsevier Science B.V. All rights reserved.
dc.language.isoeng
dc.subjectBilgisayar Bilimi
dc.subjectNEUROSCIENCES
dc.subjectSinirbilim ve Davranış
dc.subjectYaşam Bilimleri (LIFE)
dc.subjectNÖRO-GÖRÜNTÜLEME
dc.subjectBilgisayar Bilimleri
dc.subjectAlgoritmalar
dc.subjectYaşam Bilimleri
dc.subjectTemel Bilimler
dc.subjectMühendislik ve Teknoloji
dc.subjectBİLGİSAYAR BİLİMİ, YAPAY ZEKA
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.titleA model for P300 generation based on responses to near-threshold visual stimuli
dc.typeMakale
dc.relation.journalCOGNITIVE BRAIN RESEARCH
dc.contributor.departmentİstanbul Üniversitesi , ,
dc.identifier.volume8
dc.identifier.issue1
dc.identifier.startpage37
dc.identifier.endpage43
dc.contributor.firstauthorID40012


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