Paradoxical effects from stimulus density manipulation provide new insight into the impact of sleep deprivation on PVT performance.
Study Objectives The psychomotor vigilance test (PVT), a 10-min one-choice reaction time task with random response-stimulus intervals (RSIs) between 2 and 10 s, is highly sensitive to behavioral alertness deficits due to sleep loss. To investigate what drives the performance deficits, we conducted a...
| Publicado en: | Sleep Advances Vol. 4; no. 1; pp. 1 - 12 |
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| Autores principales: | , |
| Formato: | research tables/charts randomized controlled trial Journal Article |
| Publicado: |
Oxford University Press / USA
2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=174979145&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174979145 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 26325012 MB4X jtl: Sleep Advances issn: 26325012 maglogo: N pubinfo: dt: 2023 vid: 4 iid: 1 pid: 622 pub: Oxford University Press / USA artinfo: ui: 174979145 174979145 174979145 10.1093/sleepadvances/zpac045 174979145 ppf: 1 ppct: 11 formats: tig: atl: Paradoxical effects from stimulus density manipulation provide new insight into the impact of sleep deprivation on PVT performance. aug: au: Honn, Kimberly A Dongen, Hans P A Van affil: Sleep and Performance Research Center and Department of Translational Medicine and Physiology, Washington State University , Spokane, WA , USA sug: subj: Sleep Deprivation Psychomotor Performance Task Performance and Analysis Human Male Female Adult Randomized Controlled Trials Random Assignment Descriptive Statistics Comparative Studies Funding Source Adult: 19-44 years Male Female ab: Study Objectives The psychomotor vigilance test (PVT), a 10-min one-choice reaction time task with random response-stimulus intervals (RSIs) between 2 and 10 s, is highly sensitive to behavioral alertness deficits due to sleep loss. To investigate what drives the performance deficits, we conducted an in-laboratory total sleep deprivation (TSD) study and compared performance on the PVT to performance on a 10-min high-density PVT (HD-PVT) with increased stimulus density and truncated RSI range between 2 and 5 s. We hypothesized that the HD-PVT would show greater impairments from TSD than the standard PVT. Methods n = 86 healthy adults were randomized (2:1 ratio) to 38 h of TSD (n = 56) or corresponding well-rested control (n = 30). The HD-PVT was administered when subjects had been awake for 34 h (TSD group) or 10 h (control group). Performance on the HD-PVT was compared to performance on the standard PVTs administered 1 h earlier and 1 h later. Results The HD-PVT yielded approximately 60% more trials than the standard PVT. The HD-PVT had faster mean response times (RTs) and equivalent lapses (RTs > 500 ms) compared to the standard PVT, with no differences between the TSD effects on mean RT and lapses between tasks. Further, the HD-PVT had a dampened time-on-task effect in both the TSD and control conditions. Conclusions Contrary to expectation, the HD-PVT did not show greater performance impairment during TSD, indicating that stimulus density and RSI range are not primary drivers of the PVT's responsiveness to sleep loss. pubtype: Academic Journal doctype: research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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