| Yazarlar (5) |
Derya Durusu Emek
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Balca Çakıroğlu
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Meltem Civelek
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Pınar Kurt
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Görsev Yener
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| Özet |
| Background The role of beta responses in cognitive load was least understood in comparison to other frequency bands. The aim of the present study is to investigate the role of beta response oscillations upon cognitive load in healthy subjects and in subjects with mild cognitive impairment (MCI). Methods Seventeen consecutive patients with MCI (mean age 70, 76 65, 62years) according to Petersen’s criteria and Seventeen age-and education-matched normal elderly controls (mean age 68, 49 65, 48 years) were included in the study. Visual oddball paradigm was used in the experiments. Oscillatory responses were recorded from F 3, F z, F 4, C 3, C z, C 4, TP 7, TP 8, P 3, P z, P 4, O 1, O z and O 2 scalp electrodes. EEG-evoked power, inter-trial phase synchronization and event related beta responses filtered in 15-20 Hz were obtained in response to target and non-target stimuli for both groups of subjects. Results EEG-evoked beta power, inter-trial phase synchronization of beta responses and event related filtered beta responses were significantly higher in response target stimulation in comparison to non-target stimulation in healthy subjects (p< 0, 05). On the other hand, there were no evoked beta power differences between target and non target stimuli in MCI patients. Furthermore, upon presentation of visual oddball paradigm occipital electrodes enhanced higher beta response in comparison to other electrode sites (p< 0, 0001). Conclusions The results of the present study clearly indicated that target stimulation elicited higher event related beta power, event related beta phase locking and event related filtered beta responses than non … |
| Anahtar Kelimeler |
| Bildiri Türü | Tebliğ/Bildiri |
| Bildiri Alt Türü | Poster Olarak Sergilenen Tebliğ (Uluslararası Kongre/Sempozyum) |
| Bildiri Niteliği | Alanında Hakemli Uluslararası Kongre/Sempozyum |
| Bildiri Dili | İngilizce |
| Kongre Adı | AAIC 2013 |
| Kongre Tarihi | 15-07-2013 / 17-07-2013 |
| Basıldığı Ülke | |
| Basıldığı Şehir |
