Cortical Sensation, Including Extinction

Cortical Sensation, Including Extinction

Previous Page: Primary Sensation, Asymmetry, Sensory Level

Higher-order aspects of sensation, or cortical sensation, should be tested as well. To test graphesthesia, ask the patient to close their eyes and identify letters or numbers that are being traced onto their palm or the tip of their finger. To test stereognosis, ask the patient to close their eyes and identify various objects by touch, using one hand at a time. Test also for tactile extinction on double simultaneous stimulation. Note that graphesthesia, stereognosis, and extinction cannot reliably be tested for unless primary sensation is intact bilaterally.

Go to Video 75 Go to Video 76 Go to Video 77


You have completed 0 out of tasks
Current score: 0%
In order to view the contents of this collection you need to first, please create an account or login. This content contains exercises that require you to be logged in to complete, please create an account or login.

Without logging in your progress and scores cannot be tracked.

You have reached the end of this activity. Your final score is: %

Your Session has timed out

Your activity could not be evaluated because your session has timed out. This is likely because you are viewing multiple pieces of content at the same time. Please reload this activity and try again.