Event-related potentials associated with covert orientation of visual attention in Parkinson's disease

Wright, MJ, Geffen, GM and Geffen, LB (1993) Event-related potentials associated with covert orientation of visual attention in Parkinson's disease. Neuropsychologia, 31 12: 1283-1297. doi:10.1016/0028-3932(93)90098-K


Author Wright, MJ
Geffen, GM
Geffen, LB
Title Event-related potentials associated with covert orientation of visual attention in Parkinson's disease
Journal name Neuropsychologia   Check publisher's open access policy
ISSN 0028-3932
Publication date 1993-01-01
Year available 1993
Sub-type Article (original research)
DOI 10.1016/0028-3932(93)90098-K
Open Access Status Not Open Access
Volume 31
Issue 12
Start page 1283
End page 1297
Total pages 15
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Language eng
Subject 2802 Behavioral Neuroscience
3206 Neuropsychology and Physiological Psychology
Abstract Event-related potentials (ERPs) were measured in a group of patients with idiopathic Parkinson's disease and compared with a matched control group during a task involving covert orientation of visual attention. Central warning cues directed attention to the probable location of a lateralized signal that required a button-press response. Parkinson patients had enhanced post-cue P1 (at Oz) and P2 (at Cz) amplitudes, delayed N1 (at Oz) latencies, and diminished CNV amplitudes. Post-target amplitudes were similar to controls, except for an enhancedP1 to invalidly cued targets, and delayed N1 and P3 target latencies. These results indicate that Parkinson patients, in addition to their motor deficits, process spatial cues more effortfully and slowly, have impaired response preparation, and process imperative stimuli more slowly.
Keyword Behavioral Sciences
Neurosciences
Psychology, Experimental
Behavioral Sciences
Neurosciences & Neurology
Psychology
BEHAVIORAL SCIENCES
NEUROSCIENCES
PSYCHOLOGY, EXPERIMENTAL
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: ResearcherID Downloads - Archived
 
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