dc.contributor.author | Yıldız, Sultan | |
dc.contributor.author | Yuluğ, Burak | |
dc.contributor.author | Kocabora, Mehmet Selim | |
dc.contributor.author | Hanoğlu, Lütfü | |
dc.date.accessioned | 2021-01-14T07:56:44Z | |
dc.date.available | 2021-01-14T07:56:44Z | |
dc.date.issued | 2021 | en_US |
dc.identifier.citation | Yıldız, S., Yuluğ, B., Kocabora, M. S. ve Hanoğlu, L. (2021). Power spectral density and coherence analysis of eye disease with and without visual hallucination. Neuroscience Letters, 740. https://dx.doi.org/10.1016/j.neulet.2020.135444 | en_US |
dc.identifier.issn | 0304-3940 | |
dc.identifier.issn | 1872-7972 | |
dc.identifier.uri | https://dx.doi.org/10.1016/j.neulet.2020.135444 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12511/6241 | |
dc.description.abstract | Objectives: Charles Bonnet Syndrome (CBS) is a rare clinical condition which has been defined as complex visual hallucinations (CVH) due to visual loss. This study investigated differences in the EEG power spectral density (PSD) and magnitude-squared coherences between patients with eye disease and hallucinations (VH+), and the control subjects with eye disease without hallucinations (VH-). Methods: 19 scalp channels EEG was recorded in four VH+ (CBS) and four VH- subjects during an eyes-closed resting condition. Artefact-free epochs were analyzed to obtain PSD values in the delta, theta, alpha1, alpha2, beta1, beta2 and gamma frequency bands. Coherence values were calculated through inter-hemispheric and intra-hemispheric electrodes pairs of interest. All subjects were performed with neuropsychological and behavioral assessments to evaluate cognitive functions. Results: The VH + group had increase PSD in theta, beta2 and gamma bands in central, parietal and occipital (O2) areas. The synchronicity was altered particularly in parietal and frontal-parietal regions especially at theta and alpha1 respectively. Conclusions: The aberrant activity in occipital and parietal regions suggest the mechanism of CBS. This is a major electrophysiological study of understanding CBS and visual hallucinations. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier Ireland Ltd | en_US |
dc.rights | info:eu-repo/semantics/embargoedAccess | en_US |
dc.subject | Visual Hallucinations | en_US |
dc.subject | Charles Bonnet Syndrome | en_US |
dc.subject | EEG | en_US |
dc.title | Power spectral density and coherence analysis of eye disease with and without visual hallucination | en_US |
dc.type | article | en_US |
dc.relation.ispartof | Neuroscience Letters | en_US |
dc.department | İstanbul Medipol Üniversitesi, Rektörlük, Rejeneratif ve Restoratif Tıp Araştırmaları Merkezi (REMER) | en_US |
dc.department | İstanbul Medipol Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Göz Hastalıkları Ana Bilim Dalı | en_US |
dc.department | İstanbul Medipol Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Nöroloji Ana Bilim Dalı | en_US |
dc.authorid | 0000-0003-1980-700X | en_US |
dc.authorid | 0000-0002-9704-6173 | en_US |
dc.authorid | 0000-0001-5335-3860 | en_US |
dc.authorid | 0000-0003-4292-5717 | en_US |
dc.identifier.volume | 740 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.identifier.doi | 10.1016/j.neulet.2020.135444 | en_US |
dc.identifier.wosquality | Q3 | en_US |
dc.identifier.scopusquality | Q2 | en_US |