Now showing items 1-9 of 9

    • A comparative analysis of sensory visual evoked oscillations with visual cognitive event related oscillations in Alzheimer's disease 

      Yener, Görsev G.; Güntekin, Bahar; Tülay, Elif; Başar, Erol (ELSEVIER IRELAND LTD, ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000, IRELAND, 2009-09-25)
      We compared visual evoked oscillatory responses of subjects with Alzheimer's disease (AD) (n = 22) to healthy elderly controls (n = 19) elicited by simple light stimuli. The visual evoked oscillatory responses in AD subjects ...
    • A New Interpretation Of P300 Responses Upon Analysis Of Coherences 

      Güntekin, Bahar; Başar, Erol (Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands, 2010-06)
      Previous studies on cognitive dynamics showed that oscillatory responses of P300 are composed of mainly delta and theta responses. In the present study, for the first time, the long-distance intra-hemispheric event related ...
    • A review of brain oscillations in cognitive disorders and the role of neurotransmitters 

      Başar, Erol; Güntekin, Bahar (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2008-10-15)
      The analysis of the functional correlates of "brain oscillations" has become an important branch of neuroscience. Although research on the functional correlates of brain oscillation has progressed to a high level, studies ...
    • Auditory Delta Event-related Oscillatory Responses are Decreased in Alzheimer's Disease 

      Başar, Erol; Yener, Görsev; Güntekin, Bahar; Necioğlu Örken, Dilek; Forta, H. (Ios Press, Nieuwe Hemweg 6B, 1013 Bg Amsterdam, Netherlands, 2012)
      Background: Visual delta event-related (ERO) and evoked oscillations (EO) of Alzheimer patients (AD) are different than healthy. In the present study, the analysis is extented to include auditory ERO and EO in AD. The ...
    • Beyin-Beden-Zihin Etkileşiminde "Nebulöz Kartezyen Sistem" 

      Başar, Erol; Güntekin, Bahar (İstanbul Kültür Üniversitesi Yayınları, 2006-12)
      Rene Descartes 'in gelistirdigi Kartezyen Sistem "Newton 'un Dinamik Kurallari" ile ilintili ve iç içe geçmis olan temel bir kavramsal ve analitik sistemdir. Rönesans'tan itibaren modem bilimin youlunu açmistir. 20 inci ...
    • Disturbance In Long Distance Gamma Coherence In Bipolar Disorder 

      Özerdem, Ayşegül; Güntekin, Bahar; Saatçı, Ertuğrul; Tunca, Zeliha; Başar, Erol (Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1Gb, England, 2010-08-16)
      The aim of this study was to investigate long distance event-related gamma (28-48 Hz) coherence in mania before and after valproate monotherapy. Gamma coherence in response to visual oddball paradigm in ten medication-free, ...
    • Oscillations in "brain-body-mind"-A holistic view including the autonomous system 

      Başar, Erol (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2008-10-15)
      Studies related to brain oscillations pervade the neuroscience literature. Functional correlates of oscillations in the delta, theta, alpha, beta and gamma frequency windows are interpreted in several ways. However, only ...
    • Prolongation Of Alpha Oscillations İn Auditory Oddball Paradigm 

      Öniz, Adile; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2009-03)
      Although 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 ...
    • S-Matrix and Feynman Space-Time Diagrams to Quantum Brain Approach An Extended Proposal 

      Başar, Erol (Anka Publisher, 116-11 Sok No.10 K 2 D 2, Bornova, Izmir 35050, Turkey, 2009)
      This report describes the importance of oscillations in brain function and introduces metaphors to quantum dynamics. In order to analyze scattering processes at the level of elementary particles Werner Heisenberg proposed ...