Working Memory Impairments in Chromosome 22q11.2 Deletion Syndrome: The Roles of Anxiety and Stress Physiology

Stress and anxiety have a negative impact on working memory systems by competing for executive resources and attention. Broad memory deficits, anxiety, and elevated stress have been reported in individuals with chromosome 22q11.2 deletion syndrome (22q11.2DS). We investigated anxiety and physiologic...

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Veröffentlicht in:Journal of autism and developmental disorders 2017-04, Vol.47 (4), p.992-1005
Hauptverfasser: Sanders, Ashley F. P., Hobbs, Diana A., Stephenson, David D., Laird, Robert D., Beaton, Elliott A.
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container_issue 4
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creator Sanders, Ashley F. P.
Hobbs, Diana A.
Stephenson, David D.
Laird, Robert D.
Beaton, Elliott A.
description Stress and anxiety have a negative impact on working memory systems by competing for executive resources and attention. Broad memory deficits, anxiety, and elevated stress have been reported in individuals with chromosome 22q11.2 deletion syndrome (22q11.2DS). We investigated anxiety and physiological stress reactivity in relation to visuospatial working memory impairments in 20 children with 22q11.2DS and 32 typically developing (TD) children ages 7 to 16. Children with 22q11.2DS demonstrated poorer working memory, reduced post-stress respiratory sinus arrhythmia recovery, and overall increased levels of cortisol in comparison to TD children. Anxiety, but not physiological stress responsivity, mediated the relationship between 22q11.2DS diagnosis and visuospatial working memory impairment. Findings indicate that anxiety exacerbates impaired working memory in children with 22q11.2DS.
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P.</creatorcontrib><creatorcontrib>Hobbs, Diana A.</creatorcontrib><creatorcontrib>Stephenson, David D.</creatorcontrib><creatorcontrib>Laird, Robert D.</creatorcontrib><creatorcontrib>Beaton, Elliott A.</creatorcontrib><title>Working Memory Impairments in Chromosome 22q11.2 Deletion Syndrome: The Roles of Anxiety and Stress Physiology</title><title>Journal of autism and developmental disorders</title><addtitle>J Autism Dev Disord</addtitle><addtitle>J Autism Dev Disord</addtitle><description>Stress and anxiety have a negative impact on working memory systems by competing for executive resources and attention. Broad memory deficits, anxiety, and elevated stress have been reported in individuals with chromosome 22q11.2 deletion syndrome (22q11.2DS). We investigated anxiety and physiological stress reactivity in relation to visuospatial working memory impairments in 20 children with 22q11.2DS and 32 typically developing (TD) children ages 7 to 16. 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subjects Abnormalities
Adolescent
Adolescents
Anatomy
Anxiety
Anxiety - psychology
Arrhythmia
Autism
Behavioral Science and Psychology
Cardiac arrhythmia
Child
Child and School Psychology
Children
Chromosome 22
Chromosome abnormalities
Chromosome deletion
Chromosomes
Clonal deletion
Comparative Analysis
Complications and side effects
Consciousness
Control Groups
Control theory
Cortisol
Daily Living Skills
DiGeorge Syndrome - physiopathology
DiGeorge Syndrome - psychology
Efficiency
Executive Function
Female
Genetic aspects
Genetic counseling
Genetic Disorders
Health aspects
Hormones
Humans
Hydrocortisone
Hydrocortisone - analysis
Intelligence Quotient
Male
Medical diagnosis
Memorization
Memory
Memory Disorders - physiopathology
Memory Disorders - psychology
Memory, Short-Term - physiology
Neurosciences
Original Paper
Pediatrics
Physiological reactivity
Physiology
Psychology
Psychopathology
Public Health
Reactivity
Recall (Psychology)
Recovery
Respiration
Respiratory Sinus Arrhythmia - physiology
Short Term Memory
Spatial Ability
Spatial memory
Stimuli
Stress
Stress Variables
Stress, Physiological - physiology
Teenagers
Visual memory
Visual Perception
Visual task performance
title Working Memory Impairments in Chromosome 22q11.2 Deletion Syndrome: The Roles of Anxiety and Stress Physiology
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