Document Detail

Inhibition of sustained gamma oscillations (35-80 Hz) by fast transient responses in cat visual cortex.
MedLine Citation:
PMID:  8650228     Owner:  NLM     Status:  MEDLINE    
Interactions between stimulus-induced oscillations (35-80 Hz) and stimulus-locked nonoscillatory responses were investigated in the visual cortex areas 17 and 18 of anaesthetized cats. A single square-wave luminance grating was used as a visual stimulus during simultaneous recordings from up to seven electrodes. The stimulus movement consisted of a superposition of a smooth movement with a sequence of dynamically changing accelerations. Responses of local groups of neurons at each electrode were studied on the basis of multiple unit activity and local slow field potentials (13-120 Hz). Oscillatory and stimulus-locked components were extracted from multiple unit activity and local slow field potentials and quantified by a combination of temporal and spectral correlation methods. We found fast stimulus-locked components primarily evoked by sudden stimulus accelerations, whereas oscillatory components (35-80 Hz) were induced during slow smooth movements. Oscillations were gradually reduced in amplitude and finally fully suppressed with increasing amplitudes of fast stimulus-locked components. It is argued that suppression of oscillations is necessary to prevent confusion during sequential processing of stationary and fast changing retinal images.
W Kruse; R Eckhorn
Related Documents :
17601668 - A lasting post-stimulus activation on dorsolateral prefrontal cortex is produced when p...
20472768 - Quantity discrimination in salamanders.
17811218 - Conditioning in fish: effects of x-irradiation.
3060338 - Stimulus configuration and the format of the normal sensitivity gradient.
23550978 - Photoinactivation of bacteria attached to glass and acrylic surfaces by 405 nm light: p...
8945978 - Manipulation of potential perinatal zeitgebers for the juvenile circadian temperature r...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proceedings of the National Academy of Sciences of the United States of America     Volume:  93     ISSN:  0027-8424     ISO Abbreviation:  Proc. Natl. Acad. Sci. U.S.A.     Publication Date:  1996 Jun 
Date Detail:
Created Date:  1996-07-25     Completed Date:  1996-07-25     Revised Date:  2010-09-14    
Medline Journal Info:
Nlm Unique ID:  7505876     Medline TA:  Proc Natl Acad Sci U S A     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  6112-7     Citation Subset:  IM    
Department of Biophysics, Phillips-University, Marburg, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Evoked Potentials, Visual
Eye Movements / physiology
Photic Stimulation
Visual Cortex / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Recombination leads to the rapid emergence of HIV-1 dually resistant mutants under selective drug pr...
Next Document:  A single residue in the M2-M3 loop is a major determinant of coupling between binding and gating in ...