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DTSTART:19700308T020000
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BEGIN:VEVENT
DTSTAMP:20261009T184118Z
LOCATION:Summit Pavilion
DTSTART;TZID=America/Los_Angeles:20261021T173000
DTEND;TZID=America/Los_Angeles:20261021T183000
UID:HFESAM_ASPIRE 2026_sess257_POST250@linklings.com
SUMMARY:Reversing the Vigilance Decrement: Effects of a Late Modality Swit
 ch on Detection Performance
DESCRIPTION:Thomas Laskowski, Eric Greenlee, and Lucas Hess (Texas Tech Un
 iversity) and Patricia DeLucia (Rice University)\n\nWhen people monitor ra
 re signals for sustained periods, detection performance declines over time
  (i.e., vigilance decrement). In applied settings such as medical monitori
 ng and surveillance, this decline can lead to missed critical signals and 
 adverse events, highlighting the need for methods to support vigilance. Pr
 ior research examined whether changing display modalities would improve ta
 rget detection after a vigilance decrement, but results were inconsistent.
  This could have been due to differences in task difficulty and stimulus i
 ntensity between the auditory and visual modalities, a confound eliminated
  in the current study.  Discrimination difficulty and intensity were match
 ed between visual and auditory modalities for each participant before they
  completed a 50-minute vigil divided into five 10-minute periods. Particip
 ants either monitored displays in the same modality in all five periods or
  switched to the alternative modality in the final period. Hit rate declin
 ed across the first four periods (i.e., vigilance decrement) for both moda
 lities. However, hit rate improved from Period 4 to Period 5 for participa
 nts who switched modalities, but not for those who remained in the same mo
 dality. These findings suggest that a late modality change may restore det
 ection performance after a vigilance decrement.\n\n
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