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Tactile hallucination is the false perception of tactile sensory input that creates a hallucinatory sensation of physical contact with an imaginary object. [1] It is caused by the faulty integration of the tactile sensory neural signals generated in the spinal cord and the thalamus and sent to the primary somatosensory cortex (SI) and secondary ...
Tactile hallucinations are the illusion of tactile sensory input, simulating various types of pressure to the skin or other organs. One subtype of tactile hallucination, formication , is the sensation of insects crawling underneath the skin and is frequently associated with prolonged cocaine use. [ 40 ]
Individuals may present with dermatologic symptoms, such as excoriation or formication (a sensation resembling insects crawling on or under the skin) associated with tactile hallucinations, or, in the case of Morgellons disease, a subtype of delusional parasitosis, with wounds from which they believe harmful fibers or parasites are emerging. [1 ...
Hypnopompia. Hypnopompia (also known as hypnopompic state) is the state of consciousness leading out of sleep, a term coined by the psychical researcher Frederic Myers. Its mirror is the hypnagogic state at sleep onset; though often conflated, the two states are not identical and have a different phenomenological character.
Stimulant psychosis is a mental disorder characterized by psychotic symptoms (such as hallucinations, paranoid ideation, delusions, disorganized thinking, grossly disorganized behaviour). It involves and typically occurs following an overdose or several day binge on psychostimulants, [1] though one study reported occurrences at regularly ...
The main symptoms of delirium tremens are nightmares, agitation, global confusion, disorientation, visual and auditory hallucinations, [9] tactile hallucinations, fever, high heart rate, high blood pressure, heavy sweating, and other signs of autonomic hyperactivity. These symptoms may appear suddenly but typically develop two to three days ...
Apparitional experiences. A common type of anomalous experience is the apparitional experience, which may be defined as one in which a subject seems to perceive some person or thing that is not physically present. Self-selected samples tend to report a predominance of human figures, but apparitions of animals, [5] and even objects [6] are also ...
Visual hallucinations in psychoses are reported to have physical properties similar to real perceptions. They are often life-sized, detailed, and solid, and are projected into the external world. They typically appear anchored in external space, just beyond the reach of individuals, or further away. They can have three-dimensional shapes, with ...