Now showing items 1-15 of 15

    • 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 Perception of Faces and Emotional Pictures 

      Güntekin, Bahar; Başar, Erol (Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford Ox5 1Gb, England, 2014-05)
      The differentiation of faces, facial expressions and affective pictures involves processes of higher mental activity that have considerable applications in the psychology of moods and emotions. At present, the search for ...
    • Auditory Event-Related Delta Oscillatory Responses are Reduced in Patients with Mild Cognitive Impairment 

      Kurt, Pınar; Emek Savaş, Derya Durusu; Batum, Kübra; Turp Gölbaşı, Bilge; Güntekin, Bahar; Karşıdağ, Sibel; Başar, Erol; Yener, Görsev (Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2012-04-15)
    • Brain Oscillations Differentiate the Picture of One's Own Grandmother 

      Başar, Erol; Özgören, Murat; Öniz, Adile; Schmiedt, Christina; Başar-Eroğlu, Canan (ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2007-04)
      The present report introduces, as a first study, the concept and methods of oscillatory brain dynamics to analyze well-known (familiar) and unfamiliar face processing in the 800 ms following a face presentation. We analyzed ...
    • Brain oscillations in neuropsychiatric disease 

      Başar, Erol (2013-09)
      The term “brain (or neural) oscillations” refers to the rhythmic and/or repetitive electrical activity generated spontaneously and in response to stimuli by neural tissue in the central nervous system. The importance of ...
    • Decrease of delta oscillatory responses is associated with increased age in healthy elderly 

      Emek Savaş, Derya Durusu; Güntekin, Bahar; Yener, Görsev G.; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
      Background: The purpose of this study was to investigate changes in delta event-related oscillations (EROs) in younger and older healthy elderly subjects. We hypothesized that delta EROs were affected by age-related changes, ...
    • Event Related Oscillations in Euthymic Patients With Bipolar Disorder 

      Özerdem, Ayşegül; Kocaaslan, Sibel; Tunca, Zeliha; Başar, Erol (ELSEVIER IRELAND LTD, ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000, IRELAND, 2008-10-17)
      Bipolar disorder involves dysfunction in gamma amino butyric acid (GABA)/glutamatergic systems and neural circuits that regulate cognitive processing. Valproate, a mood stabilizing anticonvulsant, modulates GABA/glutamate ...
    • Facial Affect Manifested By Multiple Oscillations 

      Güntekin, Bahar; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2009-01)
      The present study describes electrophysiological differentiation of "Facial Expressions" by using the method of event-related oscillations (EROS). These measures were used to assess electrical manifestations of emotional ...
    • Frontal delta event-related oscillations relate to frontal volume in mild cognitive impairment and healthy controls 

      Yener, Görsev G.; Emek Savaş, Derya Durusu; Lizio, Roberta; Çavuşoğlu, Berrin; Carducci, Filippo; Adem, Emel; Güntekin, Bahar; Babiloni, Claudio C.; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
      Amnesic mild cognitive impairment (MCI) represents a risk of developing Alzheimer's disease (AD), but not all MCI subjects progress to dementia of AD type. Magnetic resonance imaging (MRI) of cortical and hippocampal atrophy ...
    • Mindful brain and EEG-neurophysiology Preface 

      Başar, Erol; Güntekin, Bahar; Yener, Görsev G.; Başar Eroğlu, Canan (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
    • Principles of Oscillatory Brain Dynamics and a Treatise of recognition of Faces and Facial Expressions 

      Başar, Erol; Güntekin, Bahar; Öniz, Adile (ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2006)
      The research of event-related oscillations is one of fast-growing fields in neuroscience. In this study, a theory of the "whole-brain-work," which can be useful for functional interpretation of brain oscillations, is ...
    • Review of evoked and event-related delta responses in the human brain 

      Güntekin, Bahar; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
      In the last decade, the brain's oscillatory responses have invaded the literature. The studies on delta (0.5-3.5 Hz) oscillatory responses in humans upon application of cognitive paradigms showed that delta oscillations ...
    • The brain as a working syncytium and memory as a continuum in a hyper timespace: Oscillations lead to a new model 

      Başar, Erol; Düzgün, Aysel (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
      The aim of this study is threefold: (1) we propose a new framework describing the neurophysiologic functioning and cognitive processing of neural populations, and we extend the neuron doctrine to the physiology of neural ...
    • The CLAIR model: Extension of Brodmann areas based on brain oscillations and connectivity 

      Başar, Erol; Düzgün, Aysel (Elsevier Science Bv, Po Box 211, 1000 AE Amsterdam, Netherlands, 2016-05)
      Since the beginning of the last century, the localization of brain function has been represented by Brodmann areas, maps of the anatomic organization of the brain. They are used to broadly represent cortical structures ...
    • The visual cognitive network, but not the visual sensory network, is affected in amnestic mild cognitive impairment: A study of brain oscillatory responses 

      Yener, Görsev; Emek Savaş, Derya Durusu; Güntekin, Bahar; Başar, Erol (Elsevier Science Bv, Po Box 211, 1000 Ae Amsterdam, Netherlands, 2014-10-17)
      Mild Cognitive Impairment (MCI) is considered in many as prodromal stage of Alzheimer's disease (AD). Event-related oscillations (ERO) reflect cognitive responses of brain whereas sensory-evoked oscillations (SE) inform ...