Document Detail

A dynamical analysis of oscillatory responses in the optic tectum.
MedLine Citation:
PMID:  8257873     Owner:  NLM     Status:  MEDLINE    
Multi-unit recordings from the optic tectum of an awake pigeon displaying oscillatory behavior evoked by visual stimulus are highly non-stationary and contain a broad band of frequencies under a time-window analysis. Here we extend these observations by a non-linear dynamical analysis of these oscillatory signals (local fields potentials) in successive epochs during background activity and visual responses. Two numerical estimates have been obtained from the original data every 200 ms: (1) correlation dimension and (2) non-linear forecasting of the trajectories. Results from eight different recording sites analyzed are consistent and indicate, in the average, an increase in complexity of the signal during the oscillatory periods.
S Neuenschwander; J Martinerie; B Renault; F J Varela
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brain research. Cognitive brain research     Volume:  1     ISSN:  0926-6410     ISO Abbreviation:  Brain Res Cogn Brain Res     Publication Date:  1993 Oct 
Date Detail:
Created Date:  1994-01-19     Completed Date:  1994-01-19     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  9214304     Medline TA:  Brain Res Cogn Brain Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  175-81     Citation Subset:  IM    
Institute of Neuroscience, CNRS, University of Paris, France.
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MeSH Terms
Photic Stimulation
Reaction Time
Superior Colliculi / physiology*

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