Failure to recognise objects by active touch (astereognosia) results from lesion of parietal-cortex representation of finger kinaesthesis.
The inability to identify objects by manipulation with eyes closed (astereognosia) results from a focal cortical lesion of the second order parietal area 2, which integrates inputs from finger joints with tactile information.
Tomberg
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C
Desmedt
J E
JE
D000328:Adult; D000377:Agnosia / Q000503:physiopathology*; D001924:Brain Concussion / Q000175:diagnosis / Q000503:physiopathology; D001925:Brain Damage, Chronic / Q000175:diagnosis* / Q000503:physiopathology; D002561:Cerebrovascular Disorders / Q000175:diagnosis / Q000503:physiopathology; D004292:Dominance, Cerebral / Q000502:physiology; D004569:Electroencephalography; D005073:Evoked Potentials, Somatosensory / Q000502:physiology; D005260:Female; D005385:Fingers / Q000294:innervation*; D006801:Humans; D007699:Kinesthesis / Q000502:physiology*; D009460:Neurologic Examination; D010296:Parietal Lobe / Q000503:physiopathology*; D013236:Stereognosis / Q000502:physiology*