Neurological Diagnosis: Somato-Sensory System

Question 1

Topognosis

Answer 1

Inability to identify multiple points when touched with the dull end of a neurotip

Indicates: Lesion of the somatosensory cortex

Question 2

Point Localization

Answer 2

Inability to identify multiple points when touched with the dull end of a neurotip

Indicates: Lesion of the somatosensory cortex

Question 3

Stereognosis

Answer 3

Inability to identify familiar objects by sense of touch

Indicates: Lesion of the somatosensory cortex

Question 4

Graphesthesia

Answer 4

Inability to identify numbers or letters traced lightly on the skin

Indicates: Lesion of the somatosensory cortex

Question 5

Barognosis

Answer 5

Inability to identify the difference between 2 same sized objects of different weights

Indicates: Lesion of the somatosensory cortex

Question 6

Double Simultaneous Stimulation of the Upper Extremity

Answer 6

Inability to identify the location they are being touched on the upper extremity

Indicates: Lesion of the somatosensory cortex

Question 7

Double Simultaneous Stimulation of the Lower Extremity

Answer 7

Inability to identify the location be are being touched on the lower extremity

Indicates: Lesion of the somatosensory cortex

Question 8

Extinction

Answer 8

Only one side is felt during double simultaneous stimulation test

Indicates: Lesion of the somatosensory cortex

Question 9

Displacement

Answer 9

One side is felt normally while the other is displaced toward midline during the double simultaneous stimulation test

Indicates: Lesion of the somatosensory cortex

Question 10

Synesthesia

Answer 10

One side is felt normally and the other is perceived as a vague burning during the double simultaneous stimulation test

Indicates: Lesion of the somatosensory cortex

Question 11

2-Point Discrimination Test

Answer 11

Inability to determine the smallest area in which two points can separately be perceived

Indicates: Lesion of the somatosensory cortex or dorsal column medial lemniscus