tactile sensation

Thesaurus

Noun

tactile sensation - the sensation produced by pressure receptors in the skin; "she likes the touch of silk on her skin"; "the surface had a greasy feeling"tactual sensation, touch sensation, feeling, touchperception - the process of perceivingcreepiness - an uneasy sensation as of insects creeping on your skincutaneous sensation, haptic sensation, skin sensation - a sensation localized on the skin

Tactile Sensation

the sensation produced through the action of mechanical stimuli on the surface of the skin. Tactile sensation, a form of the sense of touch, varies according to the type of stimulus: touch, pressure, or vibration.

Tactile stimuli are perceived by free nerve endings and by nerve plexuses around the hair follicles, as well as by Pacini’s, Meissner’s, and Merkel’s corpuscles. Several Merkel’s or Meissner’s corpuscles may be innervated by the same nerve fiber, constituting a unique tactile formation. Such encapsulated receptors as Pacini’s and Meissner’s corpuscles determine the threshold of tactile sensation; these receptors become stimulated by touch and vibration, and adapt rapidly. The sensation of pressure is produced by the stimulation of such slowly adapting receptors as free nerve endings.

In comparison with other skin sensations, tactile sensation decreases rapidly with prolonged stimulation, since, on the whole, the processes of adaptation in the tactile receptors are very rapid. The most highly differentiated tactile sensations are produced by stimulating the lips, the tip of the tongue, and the tips of the fingers, areas richly supplied with a variety of mechanical receptors. The cortical part of the tactile analyzer is represented in the postcentral and precentral gyri.

REFERENCES

Il’inskii, O. B. “Fiziologiia kozhnoi chuvstvitel’nosti.” In Fiziologiia sensornykh sistem, part 2. (Rukovodstvopo fiziologii.) Leningrad, 1972.
Esakov, A. I., and T. M. Dmitrieva. Neirofiziologicheskie osnovy taktil’nogo vospriiatiia. Moscow, 1971.

O. B. IL’INSKII

tactile sensation

A sensation produced through the sense of touch.See also: sensation

Patient discussion about tactile sensation

Q. What could make the top of your head hurt to the touch. I don't have a headache. It just hurts when I touch It only hurts on the left side.A. if it's a deep pain- it might be caused by a trauma to the bode. have you been hurt by something..? if you don't remember - it might be a memory loss from the hit to the head :)
if it's a sort of superficial pain- it might be caused of a wound there. ask someone to have a look and see if there's anything over there. it could even be a tic sitting there...

More discussions about tactile sensation

tactile sensation

Tactile Sensation