Cited by 258Stress Responses and CortisolAutism Spectrum Disorder ResearchNeuroendocrine regulation and behavior

Cortisol circadian rhythms and response to stress in children with autism

Corbett, Blythe A., Mendoza, Sally, Abdullah, Maryam, Wegelin, Jacob A., Levine, Seymour·2006·Psychoneuroendocrinology

Abstract

Background Autism is a severe neurodevelopmental disorder characterized by impairment in communication, social interaction, repetitive behaviors and difficulty adapting to novel experiences. The Hypothalamic-Pituitary-Adrenocortical (HPA) system responds consistently to perceived novel or unfamiliar situations and can serve as an important biomarker of the response to a variety of different stimuli. Previous research has suggested that children with autism may exhibit dysfunction of the HPA system, but it is not clear whether altered neuroendrocrine regulation or altered responsiveness underlies the differences between children with and without autism. In order to provide preliminary data concerning HPA regulation and responsiveness, we compared circadian rhythms and response to a non-social, environmental stressor in children with and without autism.Methods Circadian rhythms of cortisol were estimated in children with (N=12) and without (N=10) autism via analysis of salivary samples collected in the morning, afternoon and evening on 2 consecutive days. HPA responsiveness was assessed by examining the time course of changes in salivary cortisol in response to a mock MRI.Results Both groups showed expected circadian variation with higher cortisol concentration in morning than in the evening samples. The children with autism, but not typical children, showed a more variable circadian rhythm as well as statistically significant elevations in cortisol following exposure to a novel, nonsocial stimulus.Conclusions The results suggest that children with autism process and respond idiosyncratically to novel and threatening events resulting in an exaggerated cortisol response.

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Crossref · 10.1016/j.psyneuen.2005.05.011

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  • Psychobiological factors such as stress may underlie the poor response to novelty and changes in routine in autism.

    “Psychobiological factors, such as stress, might underlie the poor response to novelty and changes in routine in autism [52].”

    From The paradox of cognitive flexibility in autism (2009) · cites this paper as [52]

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Authors
Corbett, B. A., Mendoza, S., Abdullah, M., Wegelin, J. A., & Levine, S.
Affiliations
University of California, Davis (US)
Venue
Psychoneuroendocrinology
Publisher
Elsevier BV
Published
2006-01
Volume
31
Issue
1
Pages
59-68
ISSN
0306-4530 (ISSN-L)
OpenAlex
W2124859267
Cited by
258
References
35
Citations by year
2026: 5 · 2025: 8 · 2024: 11 · 2023: 5 · 2022: 11 · 2021: 15 · 2020: 18 · 2019: 11 · 2018: 21 · 2017: 10 · 2016: 8 · 2015: 16 · 2014: 20 · 2013: 17 · 2012: 14
FWCI
4.19
Type
journal article
Language
en
Open access
closed
Locations
  • Psychoneuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (1r21mh065672-01)
  • University of California, Davis
  • National Institute of Mental Health (MH065672)
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
Keywords
autism spectrum disorder, cortisol, circadian rhythm, hypothalamic-pituitary-adrenal axis, stress response, salivary cortisol, children, novel stimuli, neuroendocrine regulation, biomarkers
MeSH terms
Autistic Disorder, Child, Circadian Rhythm, Environment, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Male, Surveys and Questionnaires, Saliva, Sensation, Specimen Handling, Stress, Psychological, Feedback, Psychological

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