Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2009-4-13
pubmed:abstractText
To examine the impact of interstimulus "jitter" (i.e., randomization of the interval between successive stimulus events) on response control during continuous task performance, 41 healthy adults completed four go/no-go tasks that were identical except for interstimulus interval (ISI) jitter: a 0% jitter task with a fixed (1,000-ms) ISI, a 10% jitter task with an ISI range of 900-1,100 ms, a 30% jitter task with an ISI range of 700-1,300 ms, and a 50% jitter task with an ISI range of 500-1,500 ms. Repeated measures analysis of variance (ANOVA) revealed a quadratic effect of jitter on commissions across the group and on intrasubject reaction time variability in men; in both cases, performance was best for the 10% jitter condition. A linear effect of jitter was observed for reaction time (RT) with high levels of jitter (50%) resulting in longer RT. Findings suggest that response selection, including inhibition, is optimized by moderate increases in ISI jitter. More deliberate and controlled responding observed with increasing jitter may have important treatment implications for disorders (e.g., attention-deficit/hyperactivity disorder, ADHD), associated with impaired response control.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-11689297, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-12876148, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-12880912, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-1432040, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-15381021, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-15896352, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-16427129, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-16516173, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-16806097, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-17350054, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-17497558, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-17714373, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-17919082, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-7522147, http://linkedlifedata.com/resource/pubmed/commentcorrection/18686112-9335966
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1744-411X
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
483-8
pubmed:dateRevised
2011-4-22
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Moderate variability in stimulus presentation improves motor response control.
pubmed:affiliation
Department of Neuropsychology, Kennedy Krieger Institute, Baltimore, MD 21231, USA. wodka@kennedykrieger.org
pubmed:publicationType
Journal Article, Research Support, N.I.H., Extramural