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  Amplitude differences of evoked alpha and gamma oscillations in two different age groups

Böttger, D., Herrmann, C. S., & von Cramon, D. Y. (2002). Amplitude differences of evoked alpha and gamma oscillations in two different age groups. International Journal of Psychophysiology, 45(3), 245-251. doi:10.1016/S0167-8760(02)00031-4.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-9C14-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-7C76-0
Genre: Journal Article

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 Creators:
Böttger, Diana1, Author              
Herrmann, Christoph S.1, Author              
von Cramon, D. Yves1, Author              
Affiliations:
1MPI of Cognitive Neuroscience (Leipzig, -2003), The Prior Institutes, MPI for Human Cognitive and Brain Sciences, Max Planck Society, ou_634574              

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Free keywords: Aging; Binding; EEG; ERP; Gamma activity; Kanizsa figures; Illusory contours; Wavelet transform
 Abstract: The aim of this study was to investigate whether the amplitude of gamma-band activity is influenced by the factor age. We examined alpha- and gamma-band EEG activity and event-related potentials (ERPs) of 12 subjects. Six subjects constituted the younger (mean age=36.6 years) and another six the older age group (mean age=47.6 years). Subjects performed a visual discrimination task which required a response to Kanizsa squares (targets) among Kanizsa-triangles and non-Kanizsa figures. The ERPs of the younger group revealed a significantly larger N170 amplitude. The amplitudes of evoked alpha- and gamma-band activity were also found to be significantly higher in the younger group. We discuss the implications of these findings and possible reasons for a change of the oscillatory activity in the older age group.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 239360
ISI: 000178127200006
Other: P6825
DOI: 10.1016/S0167-8760(02)00031-4
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Title: International Journal of Psychophysiology
  Other : Int. J. Psychophysiol.
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 45 (3) Sequence Number: - Start / End Page: 245 - 251 Identifier: ISSN: 0167-8760
CoNE: /journals/resource/954925484686