Circadian and wake-dependent modulation of fastest and slowest reaction times during the psychomotor vigilance task
| Autor: | Anna Wirz-Justice, Vera Knoblauch, Kurt Kräuchi, Christian Cajochen, Peter Graw |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Adult
Male medicine.medical_specialty media_common.quotation_subject Poison control Experimental and Cognitive Psychology Audiology behavioral disciplines and activities Developmental psychology Behavioral Neuroscience Reference Values Reaction Time medicine Humans Circadian rhythm Wakefulness media_common Psychomotor vigilance task Crossover study Circadian Rhythm Nap Sleep deprivation Sleep Deprivation Female medicine.symptom Arousal Psychology Psychomotor Performance psychological phenomena and processes Vigilance (psychology) |
| Zdroj: | Physiology & Behavior. 80:695-701 |
| ISSN: | 0031-9384 |
| DOI: | 10.1016/j.physbeh.2003.12.004 |
| Popis: | Performance on the psychomotor vigilance task (PVT) sensitively reflects a circadian modulation of neurobehavioral functions, as well as the effect of sleep pressure developing with duration of time awake, without being confounded by a learning curve. Sixteen healthy volunteers underwent two 40-h constant posture protocols in a balanced crossover design. During these protocols, either low sleep pressure conditions were attained by an alternating cycle of 150 min of wakefulness and 75 min of sleep (NAP) protocol, or high sleep pressure conditions were achieved by total sleep deprivation (SD) protocol. During scheduled wakefulness in both protocols, the PVT was carried out every 225 min. Quantitative analysis of the lapses, slowest (90th percentile) and fastest (10th percentile) reaction times (RTs) during the protocols, indicated that the lapses and slowest RTs were sensitive to changes in homeostatic sleep pressure. Our data indicate that the difference between the fastest and slowest RTs (interpercentile range 10th-90th percentile) was particular sensitive to detect very early effects of growing sleep pressure. On the other hand, decrements in PVT performance which were related to circadian phase did not depend significantly on any categorization (such as percentiles of the RTs). |
| Databáze: | OpenAIRE |
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