Microstates in language-related brain potential maps show noun-verb differences

König, Thomas; Lehmann, Dietrich (1996). Microstates in language-related brain potential maps show noun-verb differences. Brain and language, 53(2), pp. 169-182. Elsevier 10.1006/brln.1996.0043

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Brain processing of grammatical word class was studied analyzing event-related potential (ERP) brain fields. Normal subjects observed a randomized sequence of single German nouns and verbs on a computer screen, while 20-channel ERP field map series were recorded separately for both word classes. Spatial microstate analysis was applied, based on the observation that series of ERP maps consist of epochs of quasi-stable map landscapes and based on the rationale that different map landscapes must have been generated by different neural generators and thus suggest different brain functions. Space-oriented segmentation of the mean map series identified nine successive, different functional microstates, i.e., steps of brain information processing characterized by quasi-stable map landscapes. In the microstate from 116 to 172 msec, noun-related maps differed significantly from verb-related maps along the left–right axis. The results indicate that different neural populations represent different grammatical word classes in language processing, in agreement with clinical observations. This word class differentiation as revealed by the spatial–temporal organization of neural activity occurred at a time after word input compatible with speed of reading.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > Psychiatric Neurophysiology (discontinued)

UniBE Contributor:

König, Thomas

Subjects:

500 Science > 570 Life sciences; biology

ISSN:

0093-934X

Publisher:

Elsevier

Language:

English

Submitter:

Thomas König

Date Deposited:

06 Aug 2014 13:14

Last Modified:

05 Dec 2014 10:05

Publisher DOI:

10.1006/brln.1996.0043

PubMed ID:

8726532

BORIS DOI:

10.7892/boris.39720

URI:

https://boris.unibe.ch/id/eprint/39720

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