Blunted cortisol and normal sympathetic nervous system responses to an acute psychosocial stressor in internet addiction

Hideki Tsumura, Mari Fukuda, Hideyuki Kanda

Research output: Contribution to journalArticlepeer-review

Abstract

Studies have demonstrated that addiction leads to blunted responses of cortisol and sympathetic nervous system (SNS) to acute stressors; however, limited studies have examined the neuroendocrine and SNS stress responses in Internet addiction (IA). To examine acute stress responses in IA, the current study recruited a total of 76 Japanese university students and staff members (51 females and 25 males, mean age = 22.4 years, SD = 4.7), and measured the salivary cortisol, salivary alpha-amylase (sAA), and blood pressure (BP) responses to an acute stressor under stress or a nonstress placebo conditions in IA and non-IA groups. The results revealed that patients with IA showed a blunted cortisol response to a stressor. In contrast, no differences were found in the sAA and BP responses between the IA and non-IA groups. These results suggest that IA may be characterized by blunted cortisol responses in acute stress settings.

Original languageEnglish
Article numbere12142
JournalHeliyon
Volume8
Issue number12
DOIs
Publication statusPublished - Dec 2022

Keywords

  • Acute stress
  • Alpha-amylase
  • Blood pressure
  • Cortisol
  • Internet addiction

ASJC Scopus subject areas

  • General

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