Individuals with ADHD are characterized as ubiquitously slower and more variable than their
unaffected peers, and increased reaction time (RT) variability is considered by many to …

Abstract [Correction Notice: An erratum for this article was reported in Vol 121 (2) of Journal
of Abnormal Psychology (see record 2012-12966-001). This article contained computational …

Most analyses of reaction time (RT) data are conducted by using the statistical techniques
with which psychologists are most familiar, such as analysis of variance on the sample …

Increased intraindividual variability (IIV) is a hallmark of disorders of attention. Recent work
has linked these disorders to abnormalities in a “default mode” network, comprising brain …

In traditional accounts, fluctuations in sustained and focused attention and associated
attentional lapses during task performance are regarded as the result of failures of top-down …

For the past decade, intra-individual variability in reaction times on computerized tasks has
become a central focus of cognitive research on Attention-Deficit/Hyperactivity Disorder …

Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder with a
complex symptomatology, and core symptoms as well as functional impairment often persist …

Background Intraindividual variability in reaction time (RT) has received extensive
discussion as an indicator of cognitive performance, a putative intermediate phenotype of …

We present arguments and evidence for a three-state attentional model of task engagement/
disengagement. The model postulates three states of mind-wandering: occurrent task …

Although we may not realize it, our brain function varies markedly from moment to moment
such that our brain responses exhibit substantial variability across trials even in response to …