Cited by 42Schizophrenia research and treatmentNeural and Behavioral Psychology StudiesAttention Deficit Hyperactivity Disorder

Regulation of cognitive resources during an n-back task in youth-onset psychosis and attention-deficit/hyperactivity disorder (ADHD)

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Karatekin, Canan, Bingham, Christopher, White, Tonya·2009·International Journal of Psychophysiology

Abstract

The goals of the current study were to use behavioral and pupillary measures to examine working memory on a spatial n-back task in 8-20-year-olds with youth-onset psychosis or ADHD (Combined subtype) and healthy controls to determine the contribution of different attentional factors to spatial working memory impairments, and to examine if age-related changes in performance differed across groups. Although both clinical groups had lower perceptual sensitivity on both 0- and 1-back, there was no evidence of an impairment in spatial working memory or differential order effects on the 0-back. Instead, results suggest that both clinical groups had difficulty encoding the stimuli. They also appeared to have difficulty maintaining attention and/or readiness to respond, and, to a lesser extent, recruiting resources on a trial-to-trial basis. It is likely that these attentional problems prevented the clinical groups from encoding the stimuli effectively and contributed to their general performance deficits.

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Authors
Karatekin, C., Bingham, C., & White, T.
Affiliations
University of Minnesota (US)
Corresponding author
Karatekin, Canan
Venue
International Journal of Psychophysiology
Publisher
Elsevier BV
Published
2009-09
Volume
73
Issue
3
Pages
294-307
ISSN
0167-8760 (ISSN-L)
OpenAlex
W2053707678
Cited by
42
References
91
Citations by year
2026: 4 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 1 · 2017: 2 · 2016: 1 · 2015: 5 · 2014: 3 · 2013: 4 · 2012: 2
FWCI
1.24
Type
journal article
Language
en
Open access
Locations
  • International Journal of Psychophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Alliance for Research on Schizophrenia and Depression
  • National Institutes of Health (5k08mh068540-05)
  • Center for Neurobehavioral Development
  • National Institute of Mental Health (R03MH063150, K08-MH068540)
  • National Center for Research Resources (M01RR000400)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Attention Deficit Hyperactivity Disorder
Keywords
attention deficit hyperactivity disorder, spatial working memory, n-back task, pupillometry, cognitive resource allocation, perceptual sensitivity, stimulus encoding, sustained attention, age-related changes
MeSH terms
Age Factors, Attention Deficit Disorder with Hyperactivity, Child, Child, Preschool, Cognition, Conditioning, Eyelid, Eye Movements, Female, Humans, Infant, Male, Memory, Short-Term, Neuropsychological Tests, Psychotic Disorders, Pupil, Reaction Time, Statistics as Topic, Antipsychotic Agents, Signal Detection, Psychological

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