Stereognosis

Ability to perceive the form of an object by using the sense of touch.

Mechanism:

This sense, along with tactile spatial acuity, vibration perception, texture discrimination and proprioception, are mediated by the posterior column-medial lemniscus pathway of the central nervous system.

Pathology:

Inability to identify shapes or discriminate between objects may indicate a (contralateral) parietal lobe lesion.

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