Comparative frequency analysis of single EEG-evoked potential records

Başar, Erol; Gönder, A.; Ungan, Pekcan

doi:10.1007/978-94-011-6645-4_11

Cited by 8 publications

(8 citation statements)

References 6 publications

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“…The data reflects the idea of major role of alpha-activity in processing of sensory information in the cerebral cortex [Basar E. 1980 The process of visualization was accompanied by significant changes in spectral volume (SV) of alpha3-activity (10,5-14 Hz) and a mild increase of SV of alpha2-activity (8,5-10 Hz) dominating in the frontal and occipital areas of the right hemisphere. The most experienced subjects showed the shift of peaking alpha-activity towards the slow-wave activity originating from the frontal area.…”

Section: Fig 1 Dynamics Of Alpha-wave Activity During the Eyes Clossupporting

confidence: 72%

Some of the Brain Mechanisms of the State of Induced Relaxation

Владимировна¹

2014

ABB

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Abstract:We have examined 23 teenage males that attended relaxation classes for two years. The subjects practiced two relaxation techniques by doing two different exercises. Each of them had their electroencephalography (EEG) recorded during each exercise. We have detected changes in the electrical activity of their brains, which depended on either of the two exercises done to produce relaxation induction, namely, 1-visualizing images of nature, or 2 -concentrating on the projection of the subject's own body. The alpha activity reached its peak value of 8 to 9 Hz when doing exercise 1, while brain electricity synchronization in central and occipital areas of the cortex was predominant when doing exercise 2, which indicated that there existed close interaction between visual and somatosensory cortical projections.

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Section: Fig 1 Dynamics Of Alpha-wave Activity During the Eyes Clossupporting

confidence: 72%

Some of the Brain Mechanisms of the State of Induced Relaxation

Владимировна¹

2014

ABB

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“…Gamma synchrony is suggested to be a central building block within frameworks regarding mechanism for the integration or binding of brain functions across diverse networks, providing a temporal coherence to perception and actions (Basar et al, 1980(Basar et al, , 2010aKaiser et al, 2004;Sannita et al, 2001;Singer and Gray, 1995;Tallon-Baudry et al, 1997;Varela et al, 2001). Therefore, most studies related to schizophrenia focus on disturbances in gamma oscillations, particularly on reduced gamma synchrony or the magnitude of evoked gamma responses in schizophrenia (Haenschel et al, 2007;Haig et al, 2000;Herrmann and Demiralp, 2005;Lee et al, 2003;Schnitzler and Gross, 2005;Spencer et al, 2003Spencer et al, , 2004.…”

Section: Introductionmentioning

confidence: 97%

Occipital gamma response to auditory stimulation in patients with schizophrenia

Başar-Eroğlu

Mathes

Brand³

et al. 2011

International Journal of Psychophysiology

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“…Some accounts of event-related potential activity suggest that this response is mainly generated by partial stimulusinduced phase resetting of ongoing electroencephalographic processes (Makeig et al, 2002;Pfurtscheller and Lopes da Silva, 1999). Given the suggestions that schizophrenia involves the abnormal temporal integration of brain networks (Andreasen, 2000) and since this process seems to be dependent on gamma synchrony (Basar et al, 1980;Tallon-Baudry et al, 1997;Varela et al, 2001) most studies have reported abnormal gamma evoked responses or Inter-Trial Phase Coherence in patients with schizophrenia (Lee et al, 2003;Light et al, 2006;Spencer et al, 2003). However, recent studies have focused on the slower delta and theta frequency bands, which seem to contribute the most for the formation of the P300 (Basar-Eroglu et al, 1992;Karakaş et al, 2000;Yordanova and Kolev, 1998).…”

Section: Introductionmentioning

confidence: 98%