4.4 Article

Diurnal alpha amylase patterns in adolescents: Associations with puberty and momentary mood states

期刊

BIOLOGICAL PSYCHOLOGY
卷 88, 期 2-3, 页码 170-173

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.biopsycho.2011.07.007

关键词

Alpha amylase; Sympathetic adrenal medullary system; Diurnal rhythms; Multilevel modeling; Adolescence; Puberty; Naturalistic; Diary studies; Positive emotion

资金

  1. Alfred P. Sloan Center on Parents, Children and Work at the University of Chicago
  2. Social Sciences and Humanities Research Council of Canada
  3. Spencer Foundation
  4. National Institute of Mental Health (NIMH) [R03 MH61357]
  5. Institute for Policy Research, Northwestern University

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Salivary alpha amylase (sAA) has been proposed as a marker of autonomic nervous system activity. Few studies have examined sAA basal activity and reactivity in naturalistic settings, or developmental changes in sAA. In 50 adolescents, diary-reported moods and sAA levels were gathered across two typical weekdays. As in adults, basal sAA levels were low at waking and increased across the day. More advanced pubertal development was associated with higher waking sAA levels; males had smaller sAA increases across the day. High arousal positive emotions (feeling strong, active, excited) were associated with acute sAA increases; high arousal negative emotions (angry, stressed, nervous, worried) predicted sAA increases among youth with high average levels of these emotions. Findings suggest that basal sAA levels increase with puberty, and that acute sAA increases may reflect levels of emotional arousal, including high arousal positive emotions, rather than being specific to stress or emotions of negative valence. (C) 2011 Elsevier B.V. All rights reserved.

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