ORCID "0000-0002-0860-0524" Meslek Yüksekokulları için listeleme
-
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 ... -
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 ... -
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 ... -
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 ... -
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 ... -
Event-related alpha and beta phase-locking decreased in DLB and PDD compared to ADD during the visual oddball task
Yıldırım, E.; Yener, Görsev; Hanoğlu, Lütfü; Helvacı Yılmaz, Nesrin; Güntekin, Bahar (Elsevier, 2023)Introduction: Alzheimer's disease dementia (ADD), Parkinson's disease dementia (PDD), and dementia with Lewy bodies (DLB) are the most common types of dementia. In the last years, one of the essential questions is what are ... -
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 ... -
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 ... -
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 ... -
Impairment in recognition of emotional facial expressions in Alzheimer's disease is represented by EEG theta and alpha responses
Güntekin, Bahar; Hanoǧlu, Lütfü; Aktürk, Tuba; Ruşen, Ece; Yıldırım, Ebru; Yener, Görsev (Blackwell Publishing Inc., 2019)Behavioral studies have shown that the recognition of facial expressions may be impaired in patients with Alzheimer's disease (AD). The identification and recognition of a facial expression might be represented by event-related ... -
Lower oddball event-related EEG delta and theta responses in patients with dementia due to Parkinson's and Lewy body than Alzheimer's disease
Yıldırım, Ebru; Aktürk, Tuba; Hanoğlu, Lütfü; Yener, Görsev; Babiloni, Claudio; Güntekin, Bahar (Elsevier Inc., 2024)Oddball task-related EEG delta and theta responses are associated with frontal executive functions, which are significantly impaired in patients with dementia due to Parkinson's disease (PDD) and Lewy bodies (DLB). The ... -
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 ... -
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 ...