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Related Concept Videos

Insufficient Sleep and Sleep Deprivation01:13

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
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Related Experiment Video

Updated: May 1, 2026

A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
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Enhanced brain small-worldness after sleep deprivation: a compensatory effect.

Huan Liu1, Hong Li, Yulin Wang

  • 1Key Laboratory of Cognition and Personality (Ministry of Education) and School of Psychology, Southwest University, Chongqing, China.

Journal of Sleep Research
|March 29, 2014
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Summary

Sleep deprivation enhances the brain

Keywords:
compensatory effectneuroticismresting-state functional magnetic resonance imagingsleep deprivationsmall-worldness

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Network Science

Background:

  • Sleep deprivation impacts cognition, mood, and emotion processing.
  • Previous research shows altered functional connectivity post-sleep deprivation.
  • The sensitivity of brain network small-world properties to sleep deprivation is unclear.

Purpose of the Study:

  • To investigate the topological properties of human brain networks under sufficient sleep and sleep deprivation.
  • To determine if small-world properties of resting-state networks are affected by sleep deprivation.

Main Methods:

  • Studied 22 healthy subjects under two conditions: sufficient sleep and sleep deprivation.
  • Analyzed resting-state functional magnetic resonance imaging (fMRI) data.
  • Quantified small-worldness using clustering coefficient and path length compared to random networks.

Main Results:

  • Brain networks exhibited small-world properties under sufficient sleep.
  • Small-world properties were significantly enhanced during sleep deprivation compared to sufficient sleep.
  • Altered network properties correlated with neuroticism, with lower neuroticism linked to greater resilience.

Conclusions:

  • The brain's small-world network property is sensitive to sleep deprivation.
  • Enhanced small-worldness during sleep deprivation may represent a compensatory adaptation.
  • Individual differences in neuroticism influence resilience to the cognitive effects of sleep loss.