Sequential analysis of autonomic arousal and self-injurious behavior

John Hoch, Frank Symons, Sylvia Sng

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

There have been limited direct tests of the hypothesis that self-injurious behavior (SIB) regulates arousal. In this study, two autonomic biomarkers for physiological arousal (heart rate [HR] and the high-frequency [HF] component of heart rate variability [HRV]) were investigated in relation to SIB for 3 participants with intellectual disabilities. Second-bysecond correlations were examined using time series statistical models. The probabilities of HR changes preceding or following SIB were derived using sequential analyses and compared using resampling procedures. Significant correlations and sequential dependencies were found between SIB and arousal parameters. Combining within-subject statistical methods with single-subject experimental designs may provide a replicable methodology for use across larger samples to examine relationships between SIB and arousal in real-world settings.

Original languageEnglish (US)
Pages (from-to)435-446
Number of pages12
JournalAmerican journal on intellectual and developmental disabilities
Volume118
Issue number6
DOIs
StatePublished - Nov 1 2013

Keywords

  • Arousal
  • Heart rate
  • Self-injury
  • Sequential analysis

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