Table 232 Tactile Sensitivity Two Point Discrimination
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My cheek and bottom lip were most sensitive.
Table 232 tactile sensitivity two point discrimination. The 2pd perception distance of male subjects was significantly longer than that of female subjects p005. The greater the number of cutaneous receptors in an area receptor density the greater the tactile sensitivity is in that area. In clinical settings two point discrimination is a widely used technique for assessing tactile perception. Two point discrimination 2pd is the ability to discern that two nearby objects touching the skin are truly two distinct points not one.
The 2pd perception distance significantly increased in both males and females after including muscle fatigue p005 tables 1 and and2table 2 which means the sensitivity of skin sensation decreased after induction of muscle fatigue. It is often tested with two sharp points during a neurological examination. Thirteen patients with complex regional pain syndrome crps of one limb underwent a waiting period and then 2 weeks. Ile stimulation is associated with a behavioural objective.
Paul rea in essential clinical anatomy of the nervous system 2015. The two point discrimination test is used to assess if the patient is able to identify two close points on a small area of skin and how fine the ability to discriminate this are. Functional sensibilityor what some name hapticsis the endpoint where tactile gnosis acts in concert with muscles and joints for a. It might be.
4 10 11 however there were subtle differences between hands in diplegia. 71 and is assumed to reflect how finely innervated an area of skin is. The non dominant hand in diplegia was significantly less sensitive on all tactile tasks compared with those without. My forearm and back of hand were least sensitive.
Tactile sensitivity of different body areas some areas of the skin have greater tactile sensitivity than others. It is a measure of tactile agnosia or the inability to recognize these two points despite intact cutaneous. Identification by active touching is the third levela more refined tactile gnosis. It might be really sensitive because its on the face or because they have more nerve endings.
After muscle fatigue was triggered the 2pd. Localization of touch is also an aspect of discriminative touch. Observed deficits were consistent with previous reports of problems in identifying shapes common objects or in two point discrimination thresholds. Two point discrimination test is the classic test herealthough the validity and reliability is disputed.
