Alpha-amylase reactivity and recovery patterns in anhedonic young adults performing a tandem skydive

Anhedonia (loss of pleasure) is characterized by low responsiveness to rewards and, by virtue of being one of the two core symptoms of depression, by altered responses to stress. We investigated the effect of an acute stress experience (i.e., a tandem skydive) that was expected to elicit both intens...

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Veröffentlicht in:PloS one 2018-09, Vol.13 (9), p.e0204556-e0204556
Hauptverfasser: Vrijen, Charlotte, van Roekel, Eeske, Oldehinkel, Albertine J
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Oldehinkel, Albertine J
description Anhedonia (loss of pleasure) is characterized by low responsiveness to rewards and, by virtue of being one of the two core symptoms of depression, by altered responses to stress. We investigated the effect of an acute stress experience (i.e., a tandem skydive) that was expected to elicit both intense fear and intense euphoria in a sample of anhedonic young adults. (1) To examine individual differences in alpha-amylase reactivity to and recovery from a tandem skydive in anhedonic young adults; (2) to investigate whether trait depressive and anxiety problems, trait positive affect (PA), i.e., level of pleasure and reward responsiveness, and state anxiety, PA and self-esteem prior to the skydive were associated with alpha-amylase reactivity and recovery patterns; (3) to investigate whether alpha-amylase reactivity and recovery patterns were associated with pre- to post-jump changes in state anxiety, PA, and self-esteem. Participants were 61 individuals with persistent anhedonia (Mage = 21.38, 78.7% female), who filled out a baseline questionnaire at the start of the study, and momentary questionnaires (3 times per day) before and after the tandem skydive. Alpha-amylase was measured at four time points by means of salivettes (2 before and 2 after the skydive). Alpha-amylase reactivity and recovery patterns were highly similar across individuals, although mean levels varied greatly. No associations were found between any of the trait and state measures and reactivity and recovery. Only state self-esteem was affected by the reactivity and recovery patterns, in that individuals who showed high reactivity and low recovery experienced decreases in self-esteem after the skydive. Alpha-amylase patterns following a tandem skydive in anhedonic individuals are highly similar to patterns previously found in healthy individuals. Although replication is warranted, our findings tentatively suggest that a strong stress response that cannot be downregulated well predicts a decrease in self-esteem.
doi_str_mv 10.1371/journal.pone.0204556
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We investigated the effect of an acute stress experience (i.e., a tandem skydive) that was expected to elicit both intense fear and intense euphoria in a sample of anhedonic young adults. (1) To examine individual differences in alpha-amylase reactivity to and recovery from a tandem skydive in anhedonic young adults; (2) to investigate whether trait depressive and anxiety problems, trait positive affect (PA), i.e., level of pleasure and reward responsiveness, and state anxiety, PA and self-esteem prior to the skydive were associated with alpha-amylase reactivity and recovery patterns; (3) to investigate whether alpha-amylase reactivity and recovery patterns were associated with pre- to post-jump changes in state anxiety, PA, and self-esteem. Participants were 61 individuals with persistent anhedonia (Mage = 21.38, 78.7% female), who filled out a baseline questionnaire at the start of the study, and momentary questionnaires (3 times per day) before and after the tandem skydive. Alpha-amylase was measured at four time points by means of salivettes (2 before and 2 after the skydive). Alpha-amylase reactivity and recovery patterns were highly similar across individuals, although mean levels varied greatly. No associations were found between any of the trait and state measures and reactivity and recovery. Only state self-esteem was affected by the reactivity and recovery patterns, in that individuals who showed high reactivity and low recovery experienced decreases in self-esteem after the skydive. Alpha-amylase patterns following a tandem skydive in anhedonic individuals are highly similar to patterns previously found in healthy individuals. Although replication is warranted, our findings tentatively suggest that a strong stress response that cannot be downregulated well predicts a decrease in self-esteem.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>30248153</pmid><doi>10.1371/journal.pone.0204556</doi><tpages>e0204556</tpages><orcidid>https://orcid.org/0000-0001-5144-7863</orcidid><oa>free_for_read</oa></addata></record>
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1932-6203
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source MEDLINE; DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central; Free Full-Text Journals in Chemistry; Public Library of Science (PLoS)
subjects Adults
alpha-Amylases - metabolism
Amylases
Analysis
Anhedonia
Anhedonia - physiology
Anxiety
Anxiety - enzymology
Biology and Life Sciences
Depression (Mood disorder)
Emotions
Enzymes
Female
Health aspects
Hedonic response
Hormones
Humans
Interdisciplinary aspects
Internet
Male
Medicine and Health Sciences
Mental depression
Parachuting
People and Places
Personality - physiology
Physical Sciences
Physiology
Psychological aspects
Psychopathology
Reactivity
Recovery
Reinforcement
Research and Analysis Methods
Risk-Taking
Saliva - enzymology
Self Concept
Self esteem
Skydiving
Social Behavior
Social Sciences
Sports - physiology
Stress response
Stress, Psychological - enzymology
Stresses
Studies
Time Factors
Young Adult
Young adults
α-Amylase
title Alpha-amylase reactivity and recovery patterns in anhedonic young adults performing a tandem skydive
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