Abstract:
:The effect of a positive first-time experience on adrenocortical activity was examined in 48 6- to 13-month-old infants who took part in two sessions of a YMCA-like mother-infant swim class. Experience was manipulated by comparing Novice swimmers with infants who previously had taken a swim class, and by examining responses to first versus second class session. In addition, the effects of temperamental fear of novelty were examined by maternal report prior to the first session. Preswim and Postswim cortisol levels were compared to measures obtained at the same time of day in two comparison groups, one tested at home and one tested in a playroom at the University. The results yielded no evidence of an adrenocortical stress response (elevated cortisol) to the swim sessions for either the Novice or Experienced swimmers. Infant temperamental fearfulness predicted behavioral but not adrenocortical responses during swimming. Postswim cortisol levels were significantly lower than posttest levels in the two baseline comparison groups, and lower postswim cortisol levels were associated with less negative and more positive emotional behavior and engagement of the swimming experience. These results are consistent with the hypothesis that emotions serve as a major pathway influencing adrenocortical activity, and provide no support for the uncertainty hypothesis of adrenocortical activation.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Hertsgaard L,Gunnar M,Larson M,Brodersen L,Lehman Hdoi
10.1002/dev.420250503subject
Has Abstractpub_date
1992-07-01 00:00:00pages
319-33issue
5eissn
0012-1630issn
1098-2302journal_volume
25pub_type
杂志文章abstract::The perceptual assimilation model (PAM; Best, C. T. [1995]. A direct realist view of cross-language speech perception. In W. Strange (Ed.), Speech perception and linguistic experience: Issues in cross-language research (pp. 171-204). Baltimore, MD: York Press.) accounts for developmental patterns of speech contrast di...
journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
pub_type: 杂志文章
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journal_title:Developmental psychobiology
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更新日期:2005-11-01 00:00:00
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:
更新日期:2000-05-01 00:00:00
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journal_title:Developmental psychobiology
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doi:10.1002/dev.20611
更新日期:2012-09-01 00:00:00
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journal_title:Developmental psychobiology
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doi:10.1002/dev.21784
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
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更新日期:1998-04-01 00:00:00
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journal_title:Developmental psychobiology
pub_type: 杂志文章
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journal_title:Developmental psychobiology
pub_type: 杂志文章
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更新日期:2018-03-01 00:00:00
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journal_title:Developmental psychobiology
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00
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journal_title:Developmental psychobiology
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journal_title:Developmental psychobiology
pub_type: 杂志文章
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