Why the study?
The study investigated whether 24-hours long sleep deprivation causes functional rearrangements of brain topology that impair communication and relate to cognitive performance requiring attention.
Does 24-hours long sleep deprivation alter brain network topology and cognitive functions in healthy young men?
Does 24-hours long sleep deprivation alter brain network topology and cognitive functions in healthy young men?
24-hour sleep deprivation in young men induces large-scale functional brain network rearrangements that correlate with worsened cognitive performance.
Answers are grounded in this paper and cite their sources.
May link SD to attention via network changes; hypothesis-generating, needs validation.
The topology of brain networks changes according to environmental demands and can be described within the framework of graph theory. We hypothesized that 24-hours long sleep deprivation (SD) causes functional rearrangements of the brain topology so as to impair optimal communication, and that such rearrangements relate to the performance in specific cognitive tasks, namely the ones specifically requiring attention. Thirty-two young men underwent resting-state MEG recording and assessments of attention and switching abilities before and after SD. We found loss of integration of brain network and a worsening of attention but not of switching abilities. These results show that brain network changes due to SD affect switching abilities, worsened attention and induce large-scale rearrangements in the functional networks.
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Pesoli et al. (2020) studied this question.
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