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  2. Central nervous system fatigue - Wikipedia

    en.wikipedia.org/wiki/Central_Nervous_System_Fatigue

    In the brain, serotonin is a neurotransmitter and regulates arousal, behavior, sleep, and mood, among other things. [9] During prolonged exercise where central nervous system fatigue is present, serotonin levels in the brain are higher than normal physiological conditions; these higher levels can increase perceptions of effort and peripheral muscle fatigue. [9]

  3. Directed attention fatigue - Wikipedia

    en.wikipedia.org/wiki/Directed_attention_fatigue

    Directed attention fatigue (DAF) is a neuro-psychological phenomenon that results from overuse of the brain's inhibitory attention mechanisms, which handle incoming distractions while maintaining focus on a specific task. The greatest threat to a given focus of attention is competition from other stimuli that can cause a shift in focus.

  4. Effects of sleep deprivation on cognitive performance

    en.wikipedia.org/wiki/Effects_of_sleep...

    Additionally, lack of sleep causes increased anxiety-like behaviors and impairs the brain's ability to block out unimportant stimuli when performing tasks requiring attention. Disruptions in important brain circuits and the downregulation of proteins necessary for cognitive stability are the causes of these behavioral abnormalities. [30]

  5. Psychological effects of Internet use - Wikipedia

    en.wikipedia.org/wiki/Psychological_effects_of...

    Various researchers have undertaken efforts to examine the psychological effects of Internet use. Some research employs studying brain functions in Internet users. Some studies assert that these changes are harmful, while others argue that asserted changes are beneficial.

  6. Central governor - Wikipedia

    en.wikipedia.org/wiki/Central_governor

    These include, among many others, the chronic fatigue syndrome, in which affected individuals experience evident fatigue at rest, and the role of psychological and motivational factors, centrally (brain) acting pharmaceutical agents, hypnosis, shouting or sudden unexpected gunshots, or other forms of distraction including music or premeditated ...

  7. Sensory overload - Wikipedia

    en.wikipedia.org/wiki/Sensory_overload

    Calming, focusing on music works for some. If a quick break does not relieve the problem, an extended rest is advised. People with sensory processing issues may benefit from a sensory diet of activities and accommodations designed to prevent sensory overload and retrain the brain to process sensory input more typically. It is important in ...

  8. Clouding of consciousness - Wikipedia

    en.wikipedia.org/wiki/Clouding_of_consciousness

    Clouding of consciousness, also called brain fog or mental fog, [1] [2] occurs when a person is slightly less wakeful or aware than normal. [3] They are less aware of time and their surroundings, and find it difficult to pay attention. [ 3 ]

  9. Neurasthenia - Wikipedia

    en.wikipedia.org/wiki/Neurasthenia

    Under "F48.0 Neurasthenia", the characteristics of the disorder differ among various cultures. Two overlapping symptoms can be present: Increased fatigue after mental exertion can be associated with a reduction in cognitive function. Minimal physical effort might be felt as extreme fatigue along with pain and anxiety.