astereognosis


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Related to astereognosis: agraphesthesia

astereognosis

 [ah-ster″e-og-no´sis]
loss or lack of the ability to understand the form and nature of objects that are touched (stereognosis), a form of tactile agnosia.

tac·tile ag·no·si·a

inability to recognize objects by touch, in the presence of intact cutaneous and proprioceptive hand sensation; caused by a lesion in the contralateral parietal lobe.

astereognosis

[əstir′ē·og·nō′sis]
Etymology: Gk, a, stereos, not solid, gnosis, knowledge
an inability to identify objects or shapes by touch.

astereognosis

Neurology Inability to recognize familiar objects by touch that cannot be explained by a defect of elementary tactile sensation

tac·tile ag·no·si·a

(tak'til ag-nō'zē-ă)
Inability to recognize objects by touch, in the presence of intact cutaneous and proprioceptive hand sensation; caused by a lesion in the contralateral parietal lobe.
Synonym(s): astereognosis.

astereognosis

The inability to recognize the shape of objects by touch. This is a fairly common consequence of STROKE.