Comparing EndoPAT and BIOPAC measurement of vascular responses to mental stress

Elizabeth A. Martin, Rebecca E. Nelson, M. Donna Felmlee-Devine, Troy E. Brown, Amir Lerman

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


There are currently no comparison measurements of stress-induced changes in vascular function during acute mental stress tests to measurements made by BIOPAC MP150 systems technology, a standard polygraph device used to detect deception during polygraph examinations in military or law enforcement applications. Vascular responses to reactive hyperaemia and acute mental stress in 25 healthy subjects were measured by both peripheral arterial tonometry (EndoPAT) and a blood pressure cuff attached to a pressure transducer (BIOPAC) and compared. Reactive hyperaemia was performed at baseline and following three acute mental stress tests. There was no difference in vascular reactivity at baseline and following acute mental stress, as measured by EndoPAT or BIOPAC systems (p>0·05). Mental stress ratios measured by EndoPAT were significantly different than those measured by BIOPAC (p<0·01). These data suggest that EndoPAT measurements of vascular responses to acute mental stress may be more specific and sensitive than measurements using the BIOPAC system.

Original languageEnglish (US)
Pages (from-to)272-278
Number of pages7
JournalCell Biochemistry and Function
Issue number4
StatePublished - Jun 2011


  • Deception detection
  • Endothelial function
  • Mental stress
  • Peripheral arterial tonometry
  • Plethysmography
  • Polygraph
  • Reactive hyperaemia
  • Vascular response

ASJC Scopus subject areas

  • Biochemistry
  • Clinical Biochemistry
  • Cell Biology


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