ORCID "0000-0002-0860-0524" Sağlık Bilim ve Teknolojileri Araştırma Enstitüsü (SABİTA) için listeleme
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Abnormal cross frequency coupling of brain electroencephalographic oscillations related to visual oddball task in parkinson's disease with mild cognitive impairment
Bayraktaroğlu, Zübeyir; Aktürk, Tuba; Yener, Görsev; de Graaf, Tom A.; Hanoğlu, Lütfü; Yıldırım, Ebru; Hünerli Gündüz, Duygu; Kıyı, İlayda; Sack, Alexander T.; Babiloni, Claudio; Güntekin, Bahar (SAGE Publications Inc., 2023)Parkinson's disease (PD) is a movement disorder caused by degeneration in dopaminergic neurons. During the disease course, most of PD patients develop mild cognitive impairment (PDMCI) and dementia, especially affecting ... -
Alterations of resting-state Gamma frequency characteristics in aging and Alzheimer's disease
Güntekin, Bahar; Erdal, Furkan; Bölükbaş, Burcu; Hanoğlu, Lütfü; Yener, Görsev; Duygun, Rümeysa (Springer, 2023)Alzheimer's disease (AD) is an important brain disease associated with aging. It involves various functional and structural changes which alter the EEG characteristics. Although numerous studies have found changes in delta, ... -
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 ... -
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 ... -
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 ... -
Event-related brain oscillatory responses topographically differentiated between visual and auditory emotional stimuli
Dalmızrak, Esra; Güntekin, Bahar (Elsevier, 2023)Previous EEG studies using emotional stimuli have successfully demonstrated that EEG-brain oscillation responses are sensitive to the valance and arousal of the stimulus. While the valance is represented by increased beta ... -
Event-related delta and theta responses may reflect the valence discrimination in the emotional oddball task
Bölükbaş, Burcu; Aktürk, Tuba; Ardalı, Hilal; Dündar, Yasemin; Güngör, Ceren; Kahveci, Şaika; Güntekin, Bahar (Springer Science and Business Media Deutschland GmbH, 2023)How emotion and cognition interact is still a matter of debate. Investigation of this interaction in terms of the brain oscillatory dynamics appears to be an essential approach. To investigate this topic, we designed two ... -
Immature event-related alpha dynamics in children compared with the young adults during inhibition shown by day-night stroop task
Güntekin, Bahar; Alptekin, Simay; Yıldırım, Ebru; Aktürk, Tuba; Uzunlar, Hakan; Çalışoğlu, Pervin; Eroğlu Ada, Figen; Atay, Enver; Ceran, Ömer (Frontiers Media SA, 2023)Introduction: Inhibitory control develops gradually from infancy to childhood and improves further during adolescence as the brain matures. Related previous studies showed the indispensable role of task-related alpha power ... -
Oscillatory delta and theta frequencies differentially support multiple items encoding to optimize memory performance during the digit span task
Aktürk, Tuba; de Graaf, Tom A.; Erdal, Furkan; Sack, Alexander T.; Güntekin, Bahar (Academic Press Inc., 2022)The human brain has limited storage capacity often challenging the encoding and recall of a long series of multiple items. Different encoding strategies are therefore employed to optimize performance in memory processes ... -
Patients with Alzheimer's disease dementia show partially preserved parietal 'hubs' modeled from resting-state alpha electroencephalographic rhythms
Lopez, Susanna; del Percio, Claudio; Lizio, Roberta; Noce, Giuseppe; Padovani, Alessandro; Nobili, Flavio; Arnaldi, Dario; Fama, Francesco; Babiloni, Claudio (Frontiers Media S.A., 2023)IntroductionGraph theory models a network by its nodes (the fundamental unit by which graphs are formed) and connections. 'Degree' hubs reflect node centrality (the connection rate), while 'connector' hubs are those linked ... -
Poor reactivity of posterior electroencephalographic alpha rhythms during the eyes open condition in patients with dementia due to Parkinson's disease
Babiloni, Claudio; Noce, Giuseppe; Tucci, Federico; Jakhar, Dharmendra; Ferri, Raffaele; Panerai, Simonetta; Catania, Valentina; Soricelli, Andrea; del Percio, Claudio (Elsevier Inc., 2024)Here, we hypothesized that the reactivity of posterior resting-state electroencephalographic (rsEEG) alpha rhythms during the transition from eyes-closed to -open condition might be lower in patients with Parkinson's disease ... -
Reactivity of posterior cortical electroencephalographic alpha rythms during eyes opening in cognitively intact older adults and patients with dementia due to Alzheimer's and lewy diseases
Lopez, S.; Babiloni, C.; Noce, G.; Tucci, F.; Lizio, R.; Ferri, R.; Soricelli, A.; del Percio, C. (Elsevier, 2023)Introduction: Patients with Lewy Bodies (DLB) and Parkinson’s disease dementia (PDD) suffer from vigilance dysregulation reflected by hypersomnolence, cognitive fluctuations, hallucinations, and sleep disorders. Therefore, ... -
Reconstructing brain functional networks through identifiability and deep learning
Zanin, Massimiliano; Aktürk, Tuba; Yıldırım, Ebru; Yerlikaya, Deniz; Yener, Görsev; Güntekin, Bahar (MIT Press Journals, 2024)We propose a novel approach for the reconstruction of functional networks representing brain dynamics based on the idea that the coparticipation of two brain regions in a common cognitive task should result in a drop in ... -
Reduced power and phase-locking values were accompanied by thalamus, putamen, and hippocampus atrophy in Parkinson's disease with mild cognitive impairment: An event-related oscillation study
Hünerli Gündüz, Duygu; Özbek İşbitiren, Yağmur; Uzunlar, Hakan; Çavuşoğlu, Berrin; Dönmez Çolakoğlu, Berril; Ada, Emel; Güntekin, Bahar; Yener, Görsev (Elsevier Inc., 2023)Parkinson's disease (PD) is a multifaceted neurodegenerative disorder accompanied by mild cognitive impairment (MCI) as a crucial nonmotor manifestation. Event-related oscillations (EROs) are suggested to reflect cognitive ... -
Resting state electroencephalographic alpha rhythms predict and are sensitive to Alzheimer's disease mild cognitive impairment progression at a 6-month follow-up
Babiloni, C.; Noce, G.; del Percio, Claudio; Tucci, F.; Lopez, S.; Ferri, R.; Soricelli, A.; Arnaldi, D.; Giubilei, F.; Stocchi, F.; Güntekin, Bahar; Yener, Görsev; Taylor, J. P.; Pantano, P.; Piervincenzi, Claudia; Nikolaos, Petsas; Frisoni, Giovanni B.; Jakhar, Deepak (Elsevier, 2023)Introduction: Patients with Alzheimer’s disease and mild cognitive impairment (ADMCI) suffer not only from severe cognitive deficits and disabilities in daily living but also from vigilance dysregulation reflected by ... -
rTMS reduces delta and increases theta oscillations in Alzheimer's disease: A visual-evoked and event-related potentials study
Velioğlu, Halil Aziz; Düdükçü, Esra Zeynep; Hanoğlu, Lütfü; Güntekin, Bahar; Aktürk, Tuba; Yuluğ, Burak (Wiley, 2024)Background: Repetitive transcranial magnetic stimulation (rTMS) has emerged as a promising alternative therapy for Alzheimer's disease (AD) due to its ability to modulate neural networks and enhance cognitive function. ... -
Telling functional networks apart using ranked network features stability
Zanin, Massimiliano; Güntekin, Bahar; Aktürk, Tuba; Yıldırım, Ebru; Yener, Görsev; Kıyı, İlayda; Hünerli Gündüz, Duygu; Sequeira, Henrique; Papo, David (NLM (Medline), 2022)Over the past few years, it has become standard to describe brain anatomical and functional organisation in terms of complex networks, wherein single brain regions or modules and their connections are respectively identified ... -
What a single electroencephalographic (EEG) channel can tell us about patients with dementia due to Alzheimer's disease
Del Percio, Claudio; Noce, Giuseppe; Lopez, Susanna; Tucci, Federico; Carlin, Graziano; Lizio, Roberta; Musat, Andreea M.; Soricelli, Andrea; Salvatore, Marco; Ferri, Raffaele; Nobili, Flavio; Arnaldi, Dario; Famà, Francesco; Buttinelli, Carla; Giubilei, Franco; Marizzoni, Moira; Güntekin, Bahar; Yener, Görsev; Stocchi, Fabrizio; Vacca, Laura; Frisoni, Giovanni B.; Babiloni, Claudio (Elsevier B.V., 2022)Abnormalities in cortical sources of resting-state eyes-closed electroencephalographic (rsEEG) rhythms recorded by hospital settings (10–20 electrode montage) with 19 scalp electrodes provide useful markers of neurophysiological ...