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dc.contributor.authorÖniz, Adile
dc.contributor.authorBaşar, Erol
dc.date.accessioned2016-05-03T11:28:47Z
dc.date.available2016-05-03T11:28:47Z
dc.date.issued2009-03
dc.identifier.issn0167-8760
dc.identifier.urihttp://hdl.handle.net/11413/1264
dc.description.abstractAlthough an important component of the P300 target response is the "prolonged alpha response". no relevant analysis is found in the literature. The present study emphasizes the relevance of prolongation of alpha responses in auditory oddball paradigm. Two types of stimuli were applied to twenty subjects. As standard stimuli 80 dB-1500 Hz tones and the target stimuli 80 dB-1600 Hz tones were used. The prolongations of alpha responses were measured in 13 recording sites in the frequency range of 8-13 Hz. At the Cz recording site, the time period for reaching one third (duration of prolongation) of its peak-to-peak amplitude (1/3 latency) of alpha response to target was 446 ms. The prolongation of nontarget stimuli was 277 ms. Thus, the alpha response to target was significantly more prolonged than the alpha response to nontarget stimuli. Similarly, at C3, the alpha response to target stimuli was prolonged to 373 ms. The alpha response to nontarget stimuli was prolonged to 284 ms. The target alpha response was more prolonged in comparison to the non-target alpha results. The alpha response to target stimuli (431 ms) was also more prolonged in comparison with the alpha response upon non-target stimuli (266 ms) at the C4 recording site. The results indicate that the alpha responses are prolonged under a certain level of cognitive load and working memory. Alpha prolongation is a significant component of P300 responses. It can be Suggested that the cognitive load dependency of alpha responses upon the targets could be related to working memory. (C) 2008 Elsevier B.V. All rights reserved.tr_TR
dc.language.isoen_UStr_TR
dc.publisherElsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlandstr_TR
dc.relationInternatıonal Journal Of Psychophysiologytr_TR
dc.subjectP300tr_TR
dc.subjectEEGtr_TR
dc.subjectERPtr_TR
dc.subjectalphatr_TR
dc.subjectoscillationtr_TR
dc.subjectmemorytr_TR
dc.subjectcognitiontr_TR
dc.subjecthigh-resolution eegtr_TR
dc.subjectinternally directed attentiontr_TR
dc.subjectevent-related potentialstr_TR
dc.subjectreaction time taskstr_TR
dc.subjectshort-term-memorytr_TR
dc.subjectworking-memorytr_TR
dc.subjectbrain oscillationstr_TR
dc.subjectprefrontal cortextr_TR
dc.subjectcognitive-processestr_TR
dc.subjectrecognition memorytr_TR
dc.subjectalfatr_TR
dc.subjectsalınımtr_TR
dc.subjectbellektr_TR
dc.subjectbiliştr_TR
dc.subjectyüksek çözünürlüklü EEGtr_TR
dc.subjectiçten yönelik dikkatitr_TR
dc.subjectolaya ilişkin potansiyellertr_TR
dc.subjectreaksiyon süresi görevleritr_TR
dc.subjectkısa süreli hafızatr_TR
dc.subjectçalışan bellektr_TR
dc.subjectbeyin salınımlartr_TR
dc.subjectbilişsel süreçlertr_TR
dc.subjecttanıma belleğitr_TR
dc.titleProlongation Of Alpha Oscillations İn Auditory Oddball Paradigmtr_TR
dc.typeArticletr_TR
dc.contributor.authorIDTR59951tr_TR
dc.contributor.authorIDTR142226tr_TR


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