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  2. Paresthesia - Wikipedia

    en.wikipedia.org/wiki/Paresthesia

    Paresthesia, also known as pins and needles, is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. [1] Paresthesia may be transient or chronic, and may have many possible underlying causes. [ 1 ]

  3. Tactile hallucination - Wikipedia

    en.wikipedia.org/wiki/Tactile_hallucination

    The most common tactile hallucination in patients with schizophrenia is a sensation in which a patch of their skin is stretched elastically across their head. [4] They vary in intensity, range and speed at which they feel this stretching painful sensation. They are usually triggered by emotional cues such as guilt, anger, fear and depression. [4]

  4. Formication - Wikipedia

    en.wikipedia.org/wiki/Formication

    Formication is the sensation resembling that of small insects crawling on (or under) the skin, in the absence of actual insects. It is one specific form of a set of sensations known as paresthesias, which also include the more common prickling, tingling sensation known as pins and needles. Formication is a well-documented symptom which has ...

  5. Dysesthesia - Wikipedia

    en.wikipedia.org/wiki/Dysesthesia

    Dysesthesia can generally be described as a class of neurological disorders. It can be further classified depending on where it manifests in the body, and by the type of sensation that it provokes. [citation needed] Cutaneous dysesthesia is characterized by discomfort or pain from touch to the skin by normal stimuli, including clothing.

  6. Pallesthesia - Wikipedia

    en.wikipedia.org/wiki/Pallesthesia

    Pallesthesia (\ˌpal-es-ˈthē-zh(ē-)ə\), or vibratory sensation, is the ability to perceive vibration. [1] [2] This sensation, often conducted through skin and bone, is usually generated by mechanoreceptors such as Pacinian corpuscles, Merkel disk receptors, and tactile corpuscles. [1]

  7. Psychomotor agitation - Wikipedia

    en.wikipedia.org/wiki/Psychomotor_agitation

    In more severe cases, the motions may become harmful to the individual, and may involve things such as ripping, tearing, or chewing at the skin around one's fingernails, lips, or other body parts to the point of bleeding. Psychomotor agitation is typically found in various mental disorders, especially in psychotic and mood disorders.

  8. Hutchinson's mask - Wikipedia

    en.wikipedia.org/wiki/Hutchinson's_mask

    Subjective sensations of various kinds, as numbness, pins and needles, formication, a cold trickling feeling in the skin, a feeling in the soles of the feet of walking on putty, wool, or velvet may be complained of. In rare cases Hutchinson's mask, due to affection of the fifth, occurs.

  9. Tactile illusion - Wikipedia

    en.wikipedia.org/wiki/Tactile_illusion

    When touching paradoxical objects, [17] one can feel a hole when actually touching a bump. [18] These "illusory" objects can be used to create tactile "virtual objects". [19] The thermal grill illusion occurs when one touches the hand down on an interlaced grid of warm and cool bars and experiences the illusion of burning heat.