Linked Life Data

12641174

Source:http://linkedlifedata.com/resource/pubmed/id/12641174

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-3-18
pubmed:abstractText
In choice reaction time tasks, response times and error rates demonstrate differential dependencies on the identities of up to four stimuli preceding the current one. Although the general profile of reaction times and error rates, when plotted against the stimulus histories, may seem idiosyncratic, we show that it can result from simple underlying mechanisms that take account of the occurrence of stimulus repetitions and alternations. Employing a simple connectionist model of a two-alternative forced-choice task, we explored various combinations of repetition and alternation detection schemes in an attempt to account for empirical results from the literature and from our own studies. We found that certain combinations of the repetition and the alternation schemes provided good fits to the data, suggesting that simple mechanisms may serve to explain the complicated but highly reproducible higher order dependencies of task performance on stimulus history.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1530-7026
pubmed:author
pubmed:issnType
Print
pubmed:volume
2
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
283-99
pubmed:dateRevised
2011-2-24
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Mechanisms underlying dependencies of performance on stimulus history in a two-alternative forced-choice task.
pubmed:affiliation
Princeton University, Princeton, New Jersey, USA. chory@msx.upmc.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.