Cited by 304Stress Responses and CortisolHeart Rate Variability and Autonomic ControlEmotion and Mood Recognition

Salivary Alpha-Amylase as a Biomarker of Stress in Behavioral Medicine

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Ali, Nida, Nater, Urs M.·2020·International Journal of Behavioral Medicine

Abstract

In recent years, research in behavioral medicine has become increasingly focused on understanding how chronic and acute exposure to stress impacts health outcomes. During stress, the body's physiological stress systems are activated. These systems closely interact with the immune system and are, thus, importantly implicated in the onset and maintenance of disease states. While much of the research in behavioral medicine that has investigated the effects of stress on disease has focused on the role of the hypothalamic-pituitary-adrenal axis and its downstream biomarker, cortisol, it is evident that the autonomic nervous system (ANS) also plays a crucial role in both the biological stress process and the manifestation and maintenance of stress-related symptoms. In recent years salivary alpha-amylase (sAA) has emerged as a valid and reliable marker of ANS activity in stress research and is therefore an important biomarker to consider in behavioral medicine. In this commentary, we will highlight research relevant for behavioral medicine that has utilized sAA measurements, both basally, and in response to stress, to examine ANS function in clinical populations. We will additionally summarize findings from studies that have examined the effects of various targeted interventions on changes in sAA levels. Through this, our aim is to present evidence that sAA can serve as a feasible biomarker of ANS (dys)function in health and disease. To this end, we will also highlight important methodological considerations for readers to keep in mind when including sAA assessments in their own studies. The overarching goal of this brief commentary is to highlight how a multidimensional approach toward physiological stress measurement can allow researchers to develop a better understanding of physical health and disease states.

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  • Other physiological indicators of autonomic arousal, including heart rate and alpha-amylase, alone cannot sufficiently confirm a successful stress induction.

    “The same holds true of other physiological indicators of autonomic arousal, including measures of heart rate and alpha-amylase (e.g., Ali & Nater, 2020).”

    From The effects of acute stress on eyewitness memory: An integrative review for eyewitness researchers (2021) · cites this paper as Ali & Nater, 2020

    The Introduction identifies salivary alpha-amylase and heart-rate variability as markers of autonomic activity, and the Conclusion says they can complement each other. Neither section addresses whether these measures alone can confirm a successful stress induction; a search for that specific limitation found no passage stating it. (LLM, conf=0.72)

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Authors
Ali, N., & Nater, U. M.
Affiliations
University of Vienna (AT)
Corresponding author
  • Ali, Nida
  • Nater, Urs M.
Venue
International Journal of Behavioral Medicine
Published
2020-01-03
Volume
27
Issue
3
Pages
337-342
ISSN
  • 1070-5503 (ISSN-L)
  • 1532-7558
OpenAlex
W2998342169
Cited by
304
References
53
Citations by year
2026: 47 · 2025: 77 · 2024: 40 · 2023: 47 · 2022: 45 · 2021: 32 · 2020: 16
FWCI
20.23
Type
journal article
Language
en
Open access
Locations
  • International Journal of Behavioral Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Universität Wien
Topics
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Emotion and Mood Recognition
Keywords
salivary amylase, stress biomarkers, autonomic nervous system, sympathetic activity, hypothalamic-pituitary-adrenal axis, cortisol, stress-related disorders, stress interventions, physiological stress measurement, methodological considerations
MeSH terms
Autonomic Nervous System, Behavioral Medicine, Humans, Hydrocortisone, Hypothalamo-Hypophyseal System, Pituitary-Adrenal System, Saliva, Stress, Physiological, Biomarkers, Salivary alpha-Amylases

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