Despite its central location between the sensory periphery and the primary sensory cortex
, the functional role of the thalamus in sensory processing is still largely unknown.
, the brain region responsible for identifying tactile sensations
Repetitive fingertip tracing of sharp textures injected into a plastic device, stimulates the sensory cortex
of the brain.
In Pittsburgh, Schwartz's team is about to test another approach -- a brain-controlled robotic hand for the paralyzed that would ''feel'' through electrodes implanted in a brain region known as the sensory cortex
Brain A study published recently in the journal suggests that the impulse to dream may be little more than a tickle sent up from the brainstem to the brain's sensory cortex
The sensory cortex
is responsible for the changes in frequency discrimination, but it's not necessary for developing specialized or generalized emotional responses.
Sensory means sensation and sensory nerves carry touch, pain and hot and cold messages from the skin in various parts of the body up to the spinal cord and then to the part of the brain dealing with sensation, the sensory cortex
The scans showed that in both the situations the secondary somato sensory cortex
and the dorsal posterior insula regions of the brain were activated, regions of the brain known to be activated during physical pain.
On the other hand, patients with ongoing chronic pain will not get pain relief if their sensory cortex
is surgically removed.
: Playing an instrument sends tactile messages to the sensory cortex
, as keys are hit, for example.
For example, in cases of extremity amputation, PET scans have shown how the brain adapts to new input and how it uses the available sensory cortex
to achieve expanded sensation in the remaining areas of the damaged extremity.
An alternative route is from the sensory thalamus through the sensory cortex
to the amygdala.