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A microsleep is a sudden temporary episode of sleep or drowsiness which may last for a few seconds where an individual fails to respond to some arbitrary sensory input and becomes unconscious. [ 1 ] [ 2 ] Episodes of microsleep occur when an individual loses and regains awareness after a brief lapse in consciousness, often without warning, or ...
Sleep debt or sleep deficit is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental or physical fatigue, and can adversely affect one's mood, energy, and ability to think clearly. There are two kinds of sleep debt: the result of partial sleep deprivation, and of total sleep deprivation
Sleep deprivation increases the number of errors made on working memory tasks. In one study, the working memory task involved illuminating a sequence of 3 or 4 coloured lights, then asking both sleep-deprived and non-sleep deprived people to memorize and repeat back the sequence.
Sleep deprivation may represent a final common pathway in the genesis of mania, [152] and manic patients usually have a continuous reduced need for sleep. [153] The symptoms of sleep deprivation and those of schizophrenia are parallel, including those of positive and cognitive symptoms. [154]
Sensory based motor disorder. Patients have incorrect processing of motor information that leads to poor motor skills. Sensory processing disorder or sensory discrimination disorder, which is characterized by postural control problems, lack of attentiveness, and disorganization. There are several therapies used to treat SPD.
Delirium (formerly acute confusional state, an ambiguous term that is now discouraged) [1] is a specific state of acute confusion attributable to the direct physiological consequence of a medical condition, effects of a psychoactive substance, or multiple causes, which usually develops over the course of hours to days.
Neural adaptation or sensory adaptation is a gradual decrease over time in the responsiveness of the sensory system to a constant stimulus. It is usually experienced as a change in the stimulus. For example, if a hand is rested on a table, the table's surface is immediately felt against the skin.
By way of definition, Aron and Aron (1997) wrote that sensory processing here refers not to the sense organs themselves, but to what occurs as sensory information is transmitted to or processed in the brain. [4] They assert that the trait is not a disorder but an innate survival strategy that has both advantages and disadvantages. [11] [12]