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Raiker, Joseph S.; Rapport, Mark D.; Kofler, Michael J.; Sarver, Dustin E. – Journal of Abnormal Child Psychology, 2012
Impulsivity is a hallmark of two of the three DSM-IV ADHD subtypes and is associated with myriad adverse outcomes. Limited research, however, is available concerning the mechanisms and processes that contribute to impulsive responding by children with ADHD. The current study tested predictions from two competing models of ADHD--working memory (WM)…
Descriptors: Attention Deficit Hyperactivity Disorder, Conceptual Tempo, Reaction Time, Performance Tests
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Soreni, Noam; Crosbie, Jennifer; Ickowicz, Abel; Schachar, Russell – Journal of Attention Disorders, 2009
Objective: To measure test-retest reliability of the Stop-Signal Task (SST) and the Conners' Continuous Performance Test (CPT) in children with ADHD. Methods: 12 children with ADHD (age 11.46 plus or minus 1.66) participated in the study. Primary outcome measures were stop-signal reaction time (SSRT) for the SST and CPT's commission errors (%FP).…
Descriptors: Intervals, Reaction Time, Performance Tests, Attention Deficit Disorders
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Valdez, Pablo; Reilly, Thomas; Waterhouse, Jim – Mind, Brain, and Education, 2008
Cognitive performance is affected by an individual's characteristics and the environment, as well as by the nature of the task and the amount of practice at it. Mental performance tests range in complexity and include subjective estimates of mood, simple objective tests (reaction time), and measures of complex performance that require decisions to…
Descriptors: Reaction Time, Mathematical Models, Academic Achievement, Performance Tests
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Meiran, Nachshon; Friedman, Gilad; Yehene, Eynat – Brain and Cognition, 2004
Ten Parkinson's Disease (PD) patients and 10 control participants were tested using a task-switching paradigm in which there was a random task sequence, and the task was cued in every trial. Five PD patients showed a unique error profile. Their performance approximated guessing when accuracy was dependent on correct task identification, and was…
Descriptors: Patients, Neurological Impairments, Models, Task Analysis