Switch-task performance in rats is disturbed by 12 h of sleep deprivation but not by 12 h of sleep fragmentation

Autor: Ruud N. J. M. A. Joosten, Emma Ruimschotel, Allard Zwart, Matthijs G. P. Feenstra, Maaike A.J. Hanegraaf, Cathalijn H. C. Leenaars, Hans Sandberg, Eus J.W. Van Someren, Maurice Dematteis
Přispěvatelé: Medical psychology, Integrative Neurophysiology, Neuroscience Campus Amsterdam - Attention & Cognition, Netherlands Institute for Neuroscience (NIN)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Leenaars, C H, Joosten, R N J M, Zwart, A L, Sandberg, H, Ruimschotel, E, Hanegraaf, M A J, Dematteis, M, Feenstra, M G P & van Someren, E J W 2012, ' Switch-task performance in rats is disturbed by 12 h of sleep deprivation but not by 12 h of sleep fragmentation ', SLEEP, vol. 35, no. 2, pp. 211-221 . https://doi.org/10.5665/sleep.1624
Sleep, 35(2), 211-221. American Academy of Sleep Medicine
SLEEP, 35(2), 211-221. American Academy of Sleep Medicine
Sleep, 35, 211-221. American Academy of Sleep Medicine
Leenaars, C H C, Joosten, R N J M A, Zwart, A, Sandberg, H, Ruimschotel, E, Hanegraaf, M A J, Dematteis, M, Feenstra, M G P & Van Someren, E J W 2012, ' Switch-task performance in rats is disturbed by 12 h of sleep deprivation but not by 12 h of sleep fragmentation ', Sleep, vol. 35, no. 2, pp. 211-221 . https://doi.org/10.5665/sleep.1624
ISSN: 0161-8105
Popis: Study Objectives: Task-switching is an executive function involving the prefrontal cortex. Switching temporarily attenuates the speed and/or accuracy of performance, phenomena referred to as switch costs. In accordance with the idea that prefrontal function is particularly sensitive to sleep loss, switch-costs increase during prolonged waking in humans. It has been difficult to investigate the underlying neurobiological mechanisms because of the lack of a suitable animal model. Here, we introduce the first switch-task for rats and report the effects of sleep deprivation and inactivation of the medial prefrontal cortex. Design: Rats were trained to repeatedly switch between 2 stimulus-response associations, indicated by the presentation of a visual or an auditory stimulus. These stimulus-response associations were offered in blocks, and performance was compared for the first and fifth trials of each block. Performance was tested after exposure to 12 h of total sleep deprivation, sleep fragmentation, and their respective movement control conditions. Finally, it was tested after pharmacological inactivation of the medial prefrontal cortex. Settings: Controlled laboratory settings. Participants: 15 male Wistar rats. Measurements & Results: Both accuracy and latency showed switch-costs at baseline. Twelve hours of total sleep deprivation, but not sleep fragmentation, impaired accuracy selectively on the switch-trials. Inactivation of the medial prefrontal cortex by local neuronal inactivation resulted in an overall decrease in accuracy. Conclusions: We developed and validated a switch-task that is sensitive to sleep deprivation. This introduces the possibility for in-depth investigations on the neurobiological mechanisms underlying executive impairments after sleep disturbance in a rat model.
Databáze: OpenAIRE