Document Detail


The dimensionality of the human visual evoked scalp potential.
MedLine Citation:
PMID:  57049     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A small number of processes can account for most of the evoked potentials activity in the two subjects studied. Principal components analysis indicates that six independent processes can account for approximately 97% of the variability in the data. Moreover, the factor analysis and plots of the factor coefficients yield indications that the times during which these principal factors are active agree quite well with the times at which the equipotential maps show some organized activity. The question of dipoles being the underlying cause of the observed activity is not answered by the factor analysis. The principal factors are not unique, but models which have a small number of parameters are more justifiable in light of the results of this study.
Authors:
R N Kavanagh; T M Darcey; D H Fender
Related Documents :
18266489 - Perceptual anomalies in schizophrenia co-occur with selective impairments in the gamma ...
1796219 - Recovery cycle of the cerebral neocortex: preliminary observations in epileptic patients.
8529559 - Erp signs of early selective attention effects to check size.
22232069 - A facile and versatile approach to efficient luminescent materials for applications in ...
9852189 - The effects of boat docks on eelgrass beds in coastal waters of massachusetts.
19146269 - Differential cortical processing of local and global motion information in biological m...
24458599 - Adaptation of the thylakoid membranes of pea chloroplasts to light intensities. i. stud...
22615479 - The influence of reduced audible bandwidth on asynchronous double-vowel identification.
24719719 - Conventional audiometry, extended high-frequency audiometry, and dpoae for early diagno...
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Electroencephalography and clinical neurophysiology     Volume:  40     ISSN:  0013-4694     ISO Abbreviation:  Electroencephalogr Clin Neurophysiol     Publication Date:  1976 Jun 
Date Detail:
Created Date:  1976-07-06     Completed Date:  1976-07-06     Revised Date:  2008-09-09    
Medline Journal Info:
Nlm Unique ID:  0375035     Medline TA:  Electroencephalogr Clin Neurophysiol     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  633-44     Citation Subset:  IM; S    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Brain / physiology
Electroencephalography / methods*
Electronics, Medical
Evoked Potentials*
Factor Analysis, Statistical
Humans
Models, Neurological
Time Factors
Visual Perception / physiology*

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


Previous Document:  Parameters of temporal recovery of the human auditory evoked potential.
Next Document:  Fourteen and six c/sec positive bursts in comatose patients.