Akademik Merkezler / Academic Centers
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Browsing Akademik Merkezler / Academic Centers by Publisher "Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa"
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Publication Metadata only Auditory Event-Related Delta Oscillatory Responses are Reduced in Patients with Mild Cognitive Impairment(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2012-04-15) Kurt, Pınar; Emek Savaş, Derya Durusu; Batum, Kübra; Turp Gölbaşı, Bilge; Güntekin, Bahar; Karşıdağ, Sibel; Yener, Görsev; BAŞAR, EROL; 24351; 227002; 142090; 204666; 9297; 142226; 143760Publication Metadata only Brain's Gamma Oscillations in Multiple Time and Frequency Windows. Functional Correlates and Cognitive Impairment(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2014-05) Tülay, Elif; Güntekin, Bahar; BAŞAR, EROL; 142226; 204666Publication Metadata only Decrease of Alpha/Beta Ratio in EEG Activity in Drug Free Euthymic Bipolar Patients(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2012-04-15) Tülay, Elif; Özerdem, Ayşegül; Atagün, Murat İlhan; Güntekin, Bahar; BAŞAR, EROL; 142226; 140995; 25145; 204666Publication Metadata only Do We Need a New Approach for Analysis of Gamma Event-Related Oscillatory Responses in Alzheimer's Disease?(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2014-05-01) Yener, Görsev; Emek Savaş, Derya Durusu; Güntekin, Bahar; BAŞAR, EROL; 143760; 227002; 204666; 142226Publication Metadata only Event Related Beta and Gamma Oscillations in Perception of Affective Pictures(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2014-05-01) Güntekin, Bahar; Tülay, Elif; Turp Gölbaşı, Bilge; BAŞAR, EROL; 204666; 142226Publication Metadata only Lithium Excessively Enhances Alpha and Beta Oscillatory Responses in Bipolar Disorder(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2013) Atagün, Murat İlhan; Güntekin, Bahar; Tan, Devran; Tülay, Elif; BAŞAR, EROL; 25145; 204666; 103606; 142226Background: Previous resting-state electroencephalography studies have consistently shown that lithium enhances delta and theta oscillations in default mode networks. Cognitive task based networks differ from resting-state networks and this is the first study to investigate effects of lithium on evoked and event-related beta oscillatory responses of patients with bipolar disorder. Methods: The study included 16 euthymic patients with bipolar disorder on lithium monotherapy, 22 euthymic medication-free patients with bipolar disorder and 21 healthy participants. The maximum peak-to-peak amplitudes were measured for each subject's averaged beta responses (14-28 Hz) in the 0-300 ms time window. Auditory simple and oddball paradigm were presented to obtain evoked and event-related beta oscillatory responses. Results: There were significant differences in beta oscillatory responses between groups (p=0.010). Repeated measures ANOVA revealed location (p=0.007), lateralityXgroup (p=0.043) and stimulusXlocation (p=0.013) type effects. Serum lithium levels were correlated with beta responses. Limitations: The lithium group had higher number of previous episodes, suggesting that patients of the lithium were more severe cases than patients of the medication-free group. Discussion: Lithium stimulates neuroplastic cascades and beta oscillations become prominent during neuroplastic changes. Excessively enhanced beta oscillatory responses in the lithium-treated patients may be indicative of excessive activation of the neuron groups of the certain cognitive networks and dysfunctional GABAergic modulation during cognitive activity. Lithium Excessively Enhances Event Related Beta Oscillations in Patients with Bipolar Disorder | Request PDF. Available from: https://www.researchgate.net/publication/264897974_Lithium_Excessively_Enhances_Event_Related_Beta_Oscillations_in_Patients_with_Bipolar_Disorder [accessed Jul 12 2018].Publication Metadata only Selective Gamma Activation in Alzheimer, Bipolar Disease and Schizophrenia(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2011-05-01) Başar Eroğlu, Canan; Güntekin, Bahar; Özerdem, Ayşegül; Yener, Görsev; BAŞAR, EROL; 142226; 274866; 204666; 140995; 143760Publication Metadata only The Method of Evoked/Event Related EEG Coherence Could Show the Difference between Cognitive Versus Sensory Processes in Healthy Subjects(Elsevier Science Inc, 360 Park Ave South, New York, Ny 10010-1710 Usa, 2012-04-15) Güntekin, Bahar; Elif, Tülay; Turp Gölbaşı, Bilge; BAŞAR, EROL; 204666; 142226