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Detecting Phasic Lapses in Alertness Using Pupillometric Measures by Sean D. Kristjansson; John A. Stern; Timothy B. Brown; John W. Rohrbaugh is a Psychology article available to read on EtoBox.

What is Detecting Phasic Lapses in Alertness Using Pupillometric Measures about?

a b s t r a c t Small, nonreflexive pupillary changes are robust physiological indicators of cognitive activity. In the present paper, we examined whether measures of pupillary changes could be used to detect phasic lapses in alertness during a vigilance task. A polynomial curve-fitting method for quantifying parameters from single task-evoked pupillary responses (TEPRs) is described. The TEPR parameters associated with long latency responses (indicating low alertness) were compared to the TEPR parameters associated with normal latency responses (indicating an alert state) within a multilevel modeling framework. Three parameters, pupil diameter, linear pupil dilation rate and curvilinear pupil dilation rate, significantly differed between the long latency and normal latency response types. The results provide preliminary evidence that these parameters would be useful neurocognitive markers of operator state in a biobehavioral alertness monitoring system.

Who reads Detecting Phasic Lapses in Alertness Using Pupillometric Measures?

Author

Sean D. Kristjansson; John A. Stern; Timothy B. Brown; John W. Rohrbaugh

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0003-6870)

Published

2009

Language

EN

Field

Psychology (Social Sciences)