NDLI: Dipole Localization and Test-Retest Reliability of Frequency and Duration Mismatch Negativity Generator Processes

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Methohexital-Induced Changes in Spectral Power of Neuromagnetic Signals: Beta Augmentation is Smaller Over the Hemisphere Containing the Epileptogenic Focus

8th World Congress of the International Society for Brain Electromagnetic Topography (ISBET) with The KEY Foundation Symposium “Brain Fields in Psychiatry”

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Brain Topography : Volume 9

Dipole Localization and Test-Retest Reliability of Frequency and Duration Mismatch Negativity Generator Processes

Content Provider	Springer Nature Link
Author	Frodl Bauch, Thomas Kathmann, rbert Möller, Hans Jürgen Hegerl, Ulrich
Copyright Year	1997
Abstract	The mismatch negativity (MMN) is an event related potential component elicited by changes in duration, frequency or intensity of the stimuli during repetitive series of equal standard stimuli. In the present study we compared duration and frequency MMN using dipole source analysis concerning both the test-retest reliability of MMN-amplitudes and the locations of the potential sources. Furthermore, the influence of attention for test-retest-reliability was studied. Therefore, two groups of healthy subjects were investigated with different attentional manipulations. Twenty-one healthy subjects had to perform a visual attention task during the recording and 21 healthy subjects had no additional task to perform. All subjects were studied twice with a time interval of 3 weeks. Test-retest reliability was sufficiently high for the frequency but slightly lower for the duration MMN. The locations of the frequency and duration MMN-dipoles were in the auditory cortex with a more anterior and caudal location for the frequency MMN-dipoles. The latter finding supports the hypothesis that the frequency and duration MMNs have separate neuronal generators.
Starting Page	3
Ending Page	8
Page Count	6
File Format	PDF
ISSN	08960267
Journal	Brain Topography
Volume Number	10
Issue Number	1
e-ISSN	15736792
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	1997-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neurosciences Neurology Psychiatry
Content Type	Text
Resource Type	Article
Subject	Neurology Anatomy Radiology, Nuclear Medicine and Imaging Neurology (clinical) Radiological and Ultrasound Technology

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