Event-Related Delta and Theta Responses By Tactile Stimuli
Journal Title: Journal of Neurological Sciences-Turkish - Year 2008, Vol 25, Issue 2
Abstract
The aim of this study was to investigate the delta and theta oscillatory responses to tactile stimuli by using oddball paradigm. The measurements were performed with eighteen subjects (21.39±2.75 ages; 12 male). Single type of tactile stimuli was applied to two fingers on the right hand: frequent (non-target) tactile stimuli and targets. The target (25%) stimuli were presented on index finger and nontarget stimuli (75%) were presented on middle finger randomly. Subjects counted the target stimuli mentally. The electroencephalogram (EEG) was recorded from 64 channels, 14 of which (F3, F4, FZ, CZ, C3, C4, T7, T8, P3, P4, P7, P8, O1, O2) were primarily analyzed. Peak-to-peak maximum amplitudes and prolongations of delta (0.5-3.5 Hz) and theta (4-7 Hz) were measured in 1000 ms following stimuli. The repeated measures ANOVA test was used for statistical analysis. Delta responses to target stimuli were higher than nontarget stimuli at F3, F4, FZ, CZ, C3, T7, P3, P4, P7, P8 and O2 recording sites. Delta responses to target stimuli were more prolonged than nontarget stimuli at F3, F4, FZ, C3, C4, T7, P3, P4, and O1. Theta responses to target stimuli were more prolonged than non-targets at F3, F4, Cz, C4, P3, O1 and O2 In tactile oddball paradigm, delta and theta responses to the both stimuli were highly distributed on the scalp. Furthermore, delta and theta oscillations have been differentiated for the target and nontarget stimuli, possibly serving as a reference for future physiological and clinical applications.
Authors and Affiliations
Adile ONIZ, Cagdas GUDUCU, Burcu AYDIN, Murat OZGOREN
Keywords
Related Articles
- EP ID EP84150
- DOI -
- Views 133
- Downloads 0
Primer hipotiroidizm ve miyopati birlikteliği
Tiroid hormonu eksikliği hipotiroidizme neden olur ve primer hipotiroidizmde serbest T3 ve T4 düzeyinde düşme, TSH düzeyinde yükselme görülür. Klinik bulgular, jeneralize kas güçsüzlüğü, letarji, yorugunluk, konuşma ve d...
Comparison of Burr Hole Irrigation and Closed System Drainage Methods After Burr Hole Irrigation in The Treatment of Chronic Subdural Hematoma
Objective: Comparison of evacuation of hematoma through burr hole irrigation (BHI) and closed system drainage (CSD) after burr hole irrigation in the treatment of chronic subdural hematoma (CSDH) in terms of relaps...
Multipl Skleroz ve Tiroid Hastalıkları: İki Olgu Sunumu ve Literatür Bildirimi
Multipl Skleroz (MS) tedavisinde kullanılan interferonların bilinen yan etkileri arasında tiroid hastalıkları yer alır. MS patogenezinde otoimmunitenin etkinliği bilinmektedir. MS'un tiroiditler gibi diğer otoimmun hasta...
Clinical Features of Migrainous Vertigo
The relation between migraine and vertigo has been noticed for a long time ago. In recent years, the growing numbers of investigations have showed the significant relation between these two diseases. In this study clinic...
Meningiomalarda Proliferatif MIB-1 İndeksi:Histolojik Alt Tipler ve Dereceleri ile İlişkisi
87 hastada meningiomaların proliferasyon potansiyelerini Ki-67 antijenine karşı MIB-1 antikoru kullanarak inceledik ve bu değerleri, meningiomaların histopatolojik alt tipleri ve dereceleri ile karşılaştırdık. MIB-1 bağl...