The pupillary light reflex as a point-of-care test for suicide risk: Preliminary results

William V. McCall, Sneha Sareddy, Nagy A. Youssef, Brian J. Miller, Peter B. Rosenquist

Research output: Contribution to journalArticlepeer-review

Abstract

The pupillary light reflex (PLR) reflects physiologic arousal, and a potential point-of-care biomarker of suicide risk. We collected data from 9 healthy controls, 6 non-suicidal depressed patients, 7 with prior suicide attempts but not presently suicidal, and 8 depressed patients who were actively suicidal. The pupillary maximum constriction velocity (MCV) was similar between the non-suicidal depressed patients and healthy controls (the “Never suicidal” group). Patients with prior attempt resembled the patients expressing active suicidal ideation (the “Ever suicidal” group). MCV was a significant predictor within a logistic regression model of participants who were “Ever suicidal” versus “Never suicidal”.

Original languageEnglish (US)
Article number113582
JournalPsychiatry Research
DOIs
StatePublished - Nov 2020

Keywords

  • hyperarousal
  • pupillary light reflex
  • suicide

ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Biological Psychiatry

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