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Sleep Deprivation, Cognitive Functions, and Countermeasures

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Sleep, Memory and Synaptic Plasticity
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Abstract

Sleep is necessary for the execution of cognitive functions. Sleep disturbance causes cognitive impairment in humans as well as rodents. Sleep is essential for neurogenesis, synaptic plasticity, and hippocampus-based memory consolidation. This process is impaired by sleep deprivation and may involve multiple pathways. Hippocampus is an essential player in the brain, which is involved in the execution of various cognitive functions and maintains neurogenesis and synaptic processes. At the same time, it is also more vulnerable to stress. Caffeine and modafinil are recognized psychostimulants, known to improve sleep deprivation-induced cognitive function decline in humans as well as animals. Caffeine and modafinil are well-evaluated countermeasures against sleep deprivation-induced alterations in the neuronal cell proliferation and synaptic plasticity mechanism. The article describes the sleep deprivation-induced deficit in cognitive function, its molecular mechanism, and the effect of psychostimulant drugs, caffeine, and modafinil.

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Abbreviations

ABP:

Arterial blood pressure

ACTH:

Adrenocorticotropic hormone

BDNF:

Brain-derived neurotrophic factor

BL:

Baseline

BP:

Blood pressure

CA:

Cornu Ammonis

Caf:

Caffeine

CNV:

Contingent negative variation

CRH:

Corticotropin-releasing hormone

DCX:

Doublecortin

DG:

Dentate gyrus

EC:

Entorhinal cortex

ERP:

Event-related potential

HC:

Hippocampus

HR:

Heart rate

HRV:

Heart rate variability

LTD:

Long-term depression

LTP:

Long-term potentiation

Mod:

Modafinil

MWM:

Morris water maze

NORT:

Novel object recognition test

NREM:

Non-rapid eye movement

REM:

Rapid eye movement

SD:

Sleep deprivation

SGZ:

Subgranular zone

SVZ:

Subventricular zone

WCST:

Wisconsin Card Sorting Test

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© 2019 Springer Nature Singapore Pte Ltd.

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Panjwani, U., Wadhwa, M., Ray, K., Kishore, K. (2019). Sleep Deprivation, Cognitive Functions, and Countermeasures. In: Jha, S., Jha, V. (eds) Sleep, Memory and Synaptic Plasticity. Springer, Singapore. https://doi.org/10.1007/978-981-13-2814-5_2

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