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Wakefulness is a daily recurring brain state and state of consciousness in which an individual is conscious and engages in coherent cognitive and behavioral responses to the external world. Being awake is the opposite of being asleep, in which most external inputs to the brain are excluded from neural processing. [1] [2] [3] [4]
Hypnagogia is the transitional state from wakefulness to sleep, also defined as the waning state of consciousness during the onset of sleep. (Its corresponding state is hypnopompia –sleep to wakefulness.) Mental phenomena that may occur during this "threshold consciousness" include hallucinations, lucid dreaming, and sleep paralysis.
Correspondingly, younger Americans report getting fewer hours of sleep per night, in which a large portion only sleeps for about 6.5-7.5 hours per night on average. [15] These correlating statistics reveal an epidemic that is being created with stress and an increased risk of chronic sleep deprivation.
Occupational health psychology (OHP) is an interdisciplinary area of psychology that is concerned with the health and safety of workers. [1] [2] [3] OHP addresses a number of major topic areas including the impact of occupational stressors on physical and mental health, the impact of involuntary unemployment on physical and mental health, work-family balance, workplace violence and other forms ...
Global workspace theory (GWT) is a framework for thinking about consciousness proposed by cognitive scientists Bernard Baars and Stan Franklin in the late 1980s. [1] It was developed to qualitatively explain a large set of matched pairs of conscious and unconscious processes.
This system of a sort of general activation of consciousness is called "arousal" or "wakefulness". [14] It is not necessarily accompanied by drowsiness. [16] Patients may be awake (not sleepy) yet still have a clouded consciousness (disorder of wakefulness). [17] Paradoxically, affected individuals say that they are "awake but, in another way ...
A vegetative state (VS) or post-coma unresponsiveness (PCU) [1] is a disorder of consciousness in which patients with severe brain damage are in a state of partial arousal rather than true awareness. After four weeks in a vegetative state, the patient is classified as being in a persistent vegetative state ( PVS ).
Arousal is the physiological and psychological state of being awoken or of sense organs stimulated to a point of perception. It involves activation of the ascending reticular activating system (ARAS) in the brain, which mediates wakefulness, the autonomic nervous system, and the endocrine system, leading to increased heart rate and blood pressure and a condition of sensory alertness, desire ...