Sensation

 

Different types of sensory deficit

There are many different sensory impairments after stroke:

• The loss of detection of touch sensation (65% to 94% of all stroke survivors)

• Impairment in proprioception (ability to sense the position and orientation of parts of the body) (17% to 52%)

• Vibration (44%)

• Light touch (32% to 89%)

• Loss of pinprick sensation (35% to 71%)

(Acerra 2007; Hunter 2002; Tyson 2008)

Sensory deficits can be placed in 3 categories:

• Impaired detection of sensory information

• Disturbed performance of motor tasks that require somatosensory information

• Diminished rehabilitation outcomes