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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 ... -
Comparison of the visual and auditory event related potentials of parkinson's disease epatients with and without cognitive impairment
Güner, Dilan; İsogğlu Alkaç, Ümmühan; Aktürk, Tuba; Hanoğlu, Lütfü; Güntekin, Bahar (Wiley, 2017)Auditory event related potentials (ERPs) and visual evoked potentials (VEPs) were recorded from eight patients with Parkinson's disease, before and after a single dose of apomorphine. To assess the treatment effects, the ... -
Correlation between alpha activity and neuropsychometric tests in Parkinson's disease
Helvacı Yılmaz, Nesrin; Çalışoğlu, Pervin; Güntekin, Bahar; Hanoğlu, Lütfü (Elsevier Ireland Ltd, 2020)Parkinson's disease (PD) is a neurodegenerative disease that leads to memory impairment and executive and visuospatial dysfunction as the disease progresses. Alpha activity on EEG has been related to cognition in previous ... -
Corrigendum to ‘‘Functional cortical source connectivity of resting stateelectroencephalographic alpha rhythms shows similar abnormalitiesin patients with mild cognitive impairment due to Alzheimer’s and Parkinson’s diseases” [Clin. Neurophysiol. 129 (2018) 766–782]
Babiloni, Claudio; Percio, Claudio Del; Lizio, Roberta; Noce, Giuseppe; Lopez, Susanna; Soricelli, Andrea; Ferri, Raffaele; Pascarelli, Maria Teresa; Catania, Valentina; Nobili, Flavio; Arnaldi, Dario; Famà, Francesco; Orzi, Francesco; Buttinelli, Carla; Giubilei, Franco; Bonanni, Laura; Franciotti, Raffaella; Onofrj, Marco; Stirpe, Paola; Fuhr, Peter; Gschwandtner, Ute; Ransmayr, Gerhard; Garn, Heinrich; Fraioli, Lucia; Pievani, Michela; D'Antonio, Fabrizia; De Lena, Carlo; Güntekin, Bahar; Hanoğlu, Lütfü; Başar, Erol; Yener, Görsev; Emek-Savaş, Derya Durusu; Triggiani, Antonio Ivano; Taylor, John Paul; De Pandis, Maria Francesca; Vacca, Laura; Stocchi, Fabrizio (Elsevier Ireland Ltd., 2019)Objective: This study tested the hypothesis that markers of functional cortical source connectivity of resting state eyes-closed electroencephalographic (rsEEG) rhythms may be abnormal in subjects with mild cognitive ... -
Decrease of delta oscillatory responses in cognitively normal parkinson's disease
Emek-Savaş, Derya Durusu; Özmüş, Gülin; Güntekin, Bahar; Dönmez Çolakoğlu, Berril; Çakmur, Raif; Başar, Erol; Yener, Görsev G. (Sage Publications Inc, 2017)Parkinson's disease (PD) is a common progressive neurodegenerative disorder. This study aims to compare sensory-evoked oscillations (SEOs) and event-related oscillations (EROs) of visual modality in cognitively normal PD ... -
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 ... -
Editorial: The cognitive ageing collection
Alongside rapid population ageing, we are experiencing increasing numbers of people with cognitive impairment and dementia. There is great scientific effort being committed to understanding cognitive and brain functioning, ... -
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 ... -
EEG, ERPs, and EROs in patients with cognitive deficits due to progressive neurodegenerative diseases: The dark side of the precision medicine
Babiloni, Claudio; Güntekin, Bahar (Elsevier B.V., 2023)Many millions of patients worldwide live with age-related progressive neurodegenerative diseases such as Alzheimer's, Parkinson's, Lewy body, and others belonging to severe cognitive deficits and disabilities in the ... -
The effects of cognitive, physical, and somatosensory rehabilitation after right temporo-parietal tumor resection on cognitive, motor, somatosensory, and electrophysiological parameters: A case report
Sarıcaoğlu, Mevhibe; Hanoğlu, Lütfü; Güntekin, Bahar; Özkara, Çiğdem (Taylor and Francis Ltd., 2023)Introduction: This report examines the effects of a multimodal rehabilitation program which includes cognitive, physical, and somatosensory rehabilitation after right temporo-parietal tumor resection on cognitive, motor, ... -
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 ... -
Enhancing memory capacity by experimentally slowing theta frequency oscillations using combined EEG-tACS
Aktürk, Tuba; de Graaf, Tom A.; Güntekin, Bahar; Hanoğlu, Lütfü; Sack, Alexander T. (Nature Portfolio, 2022)he coupling of gamma oscillation (similar to 40+ Hz) amplitude to the phase of ongoing theta (similar to 6 Hz) oscillations has been proposed to be directly relevant for memory performance. Current theories suggest that ...