ORCID "0000-0002-0860-0524" Rejeneratif ve Restoratif Tıp Araştırmaları Merkezi (REMER) için listeleme
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Abnormalities in auditory and visual cognitive processes are differentiated with theta responses in patients with Parkinson's disease with and without dementia
Güntekin, Bahar; Aktürk, Tuba; Yıldırım, Ebru; Helvacı Yılmaz, Nesrin; Hanoğlu, Lütfü; Yener, Görsev (Elsevier, 2020)The research on the abnormalities of event-related oscillations in Parkinson's disease (PD) was mostly studied with cognitively normal patients. The present study aims to show the adverse effects of cognitive decline in ... -
Affective pictures processing is reflected by an increased long-distance EEG connectivity
Güntekin, Bahar; Femir, Banu; Gölbaşı, Bilge Turp; Tülay, Elif; Başar, Erol (Springer, 2017)Analysis of affective picture processing by means of EEG has invaded the literature. The methodology of event-related EEG coherence is one of the essential methods used to analyze functional connectivity. The aims of the ... -
Age related differences in the recognition of facial expression: Evidence from EEG event-related brain oscillations
Aktürk, Tuba; İşoğlu-Alkaç, Ümmühan; Hanoǧlu, Lütfü; Güntekin, Bahar (Elsevier B.V., 2020)Facial Expression (FE) recognition is a major marker of emotional ability. Behavioral studies show that FE recognition ability decreases with aging. Studying how event-related brain oscillations change with normal aging ... -
Are there consistent abnormalities in event-related EEG oscillations in patients with Alzheimer's disease compared to other diseases belonging to dementia?
Güntekin, Bahar; Aktürk, Tuba; Arakaki, Xianghong; Bonanni, Laura; Del Percio, Claudio; Edelmayer, Rebecca; Farina, Francesca; Ferri, Raffaele; Hanoğlu, Lütfü; Kumar, Sanjeev; Lizio, Roberta; Lopez, Susanna; Murphy, Brian; Noce, Giuseppe; Randall, Fiona; Sack, Alexander T.; Stocchi, Fabrizio; Yener, Görsev; Yıldırım, Ebru; Babiloni, Claudio (John Wiley and Sons Inc, 2022)Cerebrospinal and structural-molecular neuroimaging in-vivo biomarkers are recommended for diagnostic purposes in Alzheimer’s disease (AD) and other dementias; however, they do not explain the effects of AD neuropathology ... -
Classification of Parkinson's disease with dementia using phase locking factor of event-related oscillations to visual and auditory stimuli
Tülay, Emine Elif; Yıldırım, Ebru; Aktürk, Tuba; Güntekin, Bahar (IOP Publishing Ltd, 2023)Objective. In the last decades, machine learning approaches have been widely used to distinguish Parkinson’s disease (PD) and many other neuropsychiatric diseases. They also speed up the clinicians and facilitate decision-making ... -
Classification of patients with alzheimer's disease and dementia with lewy bodies using resting EEG selected features at sensor and source levels: A proof-of-concept study
San Martin, Rodrigo; J Fraga, Francisco; Del Percio, Claudio; Lizio, Roberta; Noce, Giuseppe; Nobili, Flavio; Arnaldi, Dario; D'Antonio, Fabrizia; Lena, Carlo De; Güntekin, Bahar; Hanoğlu, Lütfü; Taylor, John Paul; McKeith, Ian; Stocchi, Fabrizio; Ferri, Raffaele; Onofrj, Marco; Lopez, Susanna; Bonanni, Laura; Babiloni, Claudio (Bentham Science, 2021)Background: Early differentiation between Alzheimer's disease (AD) and Dementia with Lewy Bodies (DLB) is important for accurate prognosis, as DLB patients typically show faster disease progression. Cortical neural networks, ... -
Cognitive impairment in parkinson's disease is reflected with gradual decrease of eeg delta responses during auditory discrimination
Güntekin, Bahar; Hanoğlu, Lütfü; Güner, Dilan; Helvacı Yılmaz, Nesrin; Çadırcı, Fadime; Mantar, Nagihan; Aktürk, Tuba; Emek Savaş, Derya Durusu; Özer, Feriha; Yener, Görsev; Başar, Erol (Frontiers Media Sa, 2018)Parkinson's disease (PD) is a neurodegenerative disease that is characterized by loss of dopaminergic neurons in the substantia nigra. Mild Cognitive impairment (MCI) and dementia may come along with the disease. New ... -
Delta oscillatory responses as a general electrophysiological biomarker for cognitive disorders
Güntekin, Bahar; Hanoğlu, Lütfü; Aktürk, Tuba; Güner, Dilan; Turp-Gölbaşı, Bilge; Yener, Görsev; Başar, Erol (Elsevier Science Bv, 2016)Background: In the last decade research on delta oscillatoryresponses invaded the literature. One of thefirst research on thisarea showed that delta responses increase upon cognitive load(Başar and Stampfer 1985). After ... -
The difference of mild cognitive impairment in Parkinson's disease from amnestic mild cognitive impairment: Deeper power decrement and no phase-locking in visual event-related responses
Yener, Görsev G.; Fide, Ezgi; Özbek, Yağmur; Emek Savaş, Derya Durusu; Aktürk, Tuba; Çakmur, Raif; Güntekin, Bahar (Elsevier Science Bv, 2019)Event-related oscillatory responses reflect the cognitive status in many neuropsychiatric conditions including mild cognitive impairment (MCI). In this study, a total of 30 patients with amnestic MCI (aMCI) and 25 patients ... -
Distinct brain oscillatory responses for the perception and identification of one's own body from other's body
Çelik, Samet; Doğan, Rümeysa Büşra; Parlatan, Cennet Sena; Güntekin, Bahar (Springer, 2021)The body recognition process includes complex visual processing, the sensation, perception, and distinction stages of the stimulus. This study examined this process by using the time-frequency analysis of EEG signals and ... -
DLPF targeted repetitive transcranial magnetic stimulation improves brain glucose metabolism along with the clinical and electrophysiological parameters in CBD patients
Toprak, Güven; Hanoğlu, Lütfü; Çakır, Tansel; Güntekin, Bahar; Velioğlu, Halil Aziz; Yuluğ, Burak (Bentham Science Publishers, 2022)Background: Corticobasal Degeneration (CBD) is a rare neurological disease caused by the pathological accumulation of tau protein. The primary pathological features of CBD include progressive neurodegenerative processes ... -
Early diagnosis of Alzheimer's disease: the role of biomarkers including advanced EEG signal analysis. Report from the IFCN-sponsored panel of experts
Rossini, Paolo Maria; Di Iorio, Riccardo; Vecchio, F.; Anfossi, Maria; Babiloni, C.; Bozzali, M.; Bruni, Amalia Cecilia; Cappa, Stefano F.; Escudero, Julien; Fraga, Francisco Jose; Giannakopoulos, Panteleimon; Güntekin, Bahar; Logroscino, Giancarlo; Marra, Camillo; Miraglia, F.; Panza, Francesco; Tecchio, F.; Pascual-Leone, Alvaro; Dubois, Bruno (Elsevier Ireland Ltd., 2020)Alzheimer's disease (AD) is the most common neurodegenerative disease among the elderly with a progressive decline in cognitive function significantly affecting quality of life. Both the prevalence and emotional and financial ... -
EEG alpha activity increased in response to transcutaneous electrical nervous stimulation in young healthy subjects but not in the healthy elderly
Yıldırım, Ebru; Güntekin, Bahar; Hanoğlu, Lütfü; Algun, Zeliha Candan (PeerJ Inc, 2020)Transcutaneous Electrical Nerve Stimulation (TENS) is used not only in the treatment of pain but also in the examination of sensory functions. With aging, there is decreased sensitivity to somatosensory stimuli. It is ... -
EEG measures for clinical research in major vascular cognitive impairment: recommendations by an expert panel
Babiloni, Claudio C.; Arakaki, Xianghong; Bonanni, Laura; Buján, Ana; Carrillo, María C.; del Percio, Claudio; Edelmayer, Rebecca M.; Egan, Gary; Elahh, Fanny M.; Evans, Alan Charles; Ferri, Raffaele; Frisoni, Glovannl B.; Güntekin, Bahar; Hainsworth, Atticus Henry; Hampel, Harald; Jelić, Vesna; Jeong, Jaeseung; Kim, Doh-kwan; Kramberger, Milica Gregorič; Kumar, Sanjeev; Lizio, Roberta; Nobili, Flavio Mariano; Noce, Giuseppe; Puce, Aina; Ritter, Petra; Smit, Dirk J.A.; Soricelli, Andrea; Teipel, S.; Tucci, Federico (Elsevier Inc., 2021)Vascular contribution to cognitive impairment (VCI) and dementia is related to etiologies that may affect the neurophysiological mechanisms regulating brain arousal and generating electroencephalographic (EEG) activity. A ... -
Electrophysiological evidence of altered facial expressions recognition in Alzheimer's disease: A comprehensive ERP study
Fide, Ezgi; Ekmek Savaş, Derya Durusu; Aktürk, Tuba; Güntekin, Bahar; Hanoğlu, Lütfü; Yener, Görsev G. (Elsevier Ireland Ltd, 2019)Objectives: The present study aims to evaluate the amplitude and latency of event-related potentials (ERPs) P100, N170, VPP and N230 in individuals with Alzheimer's disease (AD) compared to healthy elderly controls, using ... -
Event-related EEG oscillatory responses elicited by dynamic facial expression
Aktürk, Tuba; de Graaf, Tom A.; Abra, Yasemin; Şahoğlu Göktaş, Sevilay; Özkan, Dilek; Kula, Aysun; Güntekin, Bahar (BMC, 2021)Background Recognition of facial expressions (FEs) plays a crucial role in social interactions. Most studies on FE recognition use static (image) stimuli, even though real-life FEs are dynamic. FE processing is complex and ... -
A fast transform for brain connectivity difference evaluation
Zanin, Massimiliano; Ivanoska, Ilinka; Güntekin, Bahar; Yener, Görsev; Loncar-Turukalo, Tatjana; Jakovljevic, Niksa; Sveljo, Olivera; Papo, David (Humana Press Inc, 2022)Anatomical and dynamical connectivity are essential to healthy brain function. However, quantifying variations in connectivity across conditions or between patient populations and appraising their functional significance ...