tactile discrimination

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(dis-krim?i-na'shon) [L. discriminatio, a contrast]
1. The process of distinguishing or differentiating.
2. Unequal and unfair treatment or denial of rights or privileges without reasonable cause. Federal statutes prohibit discrimination based on age, sex, sexual preference, religion, race, national origin, and disability.
3. The accuracy with which risk factors separate a population into the healthy and the sick.

figure-ground discrimination

The ability to see the outline of an object as distinct from visually competing background stimuli. This ability is often impaired following central nervous system damage.

genetic discrimination

Unequal treatment of persons with either known genetic abnormalities or the inherited propensity for disease. Genetic discrimination may have a negative effect on employability, insurability, and other socioeconomic variables.

one-point discrimination

The ability to locate specifically a point of pressure on the surface of the skin.

spatial discrimination

The ability to perceive as separate points of contact the two blunt points of a compass when applied to the skin.

speech discrimination

The ability to recognize a spoken word if it is uttered loudly enough for the hearer to detect it as a sound.

tactile discrimination

Two-point discrimination.

tonal discrimination

The ability to distinguish one tone from another. This is dependent on the integrity of the transverse fibers of the basilar membrane of the organ of Corti.

two-point discrimination

The ability to localize two points of pressure on the surface of the skin and to identify them as discrete sensations. Synonym: tactile discrimination
See: two-point discrimination test
Medical Dictionary, © 2009 Farlex and Partners

tac·tile dis·crim·i·na·tion

(taktil dis-krimi-nāshŭn)
Clinicians' ability to distinguish relative degrees of roughness and smoothness, for example, on a tooth surface, using an instrument such as an explorer or a periodontal probe.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
In summary, tactile discrimination training techniques which encourage patients to concentrate on the delivered stimuli can improve tactile acuity and reduce pain.
In order to avoid floor and ceiling performance, analyses of the two tactile discrimination tasks were restricted to the three intermediate levels of difficulty.
Association between Tactile Discrimination and Functional Connectivity.
One of Andrea's strengths was her tactile discrimination skills.
Play dough activities can increase or improve tactile discrimination and visual regard, as well as introduce the use of preschool tools such as scissors and rolling pins.
The authors found impaired tactile discrimination of grating orientation after exerting TMS on this occipital area and concluded that this occipital area is really functionally involved in tactile spatial perception [40].
Children may enjoy practicing finer tactile discrimination by finding the braille character that is different in a row.
After analyzing the tactile skills that are necessary for fluent braille reading, she concluded that the importance of familiarity, practice, and experience is evident in tactile discrimination. Millar (2008) reached a similar conclusion with regard to the understanding of space; that is, for spatial coding, it is crucial to get information from reference cues.