somatic sensory help


by biferi
Tags: sensory, somatic
biferi
biferi is offline
#1
Dec13-12, 10:14 PM
P: 193
In the Human Brain right in back of the Primary Moto Cortext is the Primary Sensory Cortex.

What is the Primary Sensory Cortex for I know it is part of the Parietal Lob.
Phys.Org News Partner Biology news on Phys.org
Lemurs match scent of a friend to sound of her voice
New research shows how pathogenic E. coli O157:H7 binds to fresh vegetables
A European bear's point of view, finally on film
atyy
atyy is offline
#2
Dec13-12, 10:57 PM
Sci Advisor
P: 8,002
In more modern language, primary sensory cortex is not the same thing as primary somatosensory cortex (although in old language it apparently was, according to Wikipedia). In modern language, primary sensory cortex includes primary visual cortex, primary auditory cortex, and primary somatosensory cortex.

Since your title asks about somatic sensory cortex, I will assume that you mean primary somatosensory cortex. The term "primary" means that it is the first part of the cortex to receive somatosensory information ("touch" information). So if you touch your fingers to the table, neurons in your somatosensory cortex will be activated. Similarly, if an object brushes against your face, different neurons in your somatosensory cortex will be activated.

Take a look at figure 1 of http://www.ncbi.nlm.nih.gov/pubmed/21982165 (there is a link to a free version of the article). They show that touching different parts of the hand activates different parts of the primary somatosensory cortex.
Pythagorean
Pythagorean is online now
#3
Dec13-12, 11:38 PM
PF Gold
Pythagorean's Avatar
P: 4,180
Another important sensor is the ones in your muscles that tell you how they are stretched. Taken together, these help the brain recognize the bodies position in space. The parietal lobe has a lot of associations with spatial reasoning.

The vestibular system (a fluid filled apparatus that can detect body kinetics) probably also contributes in this regard.


Register to reply

Related Discussions
Paralysing the somatic nervous system Chemistry 2
is somatic vs. germline distinction definitive? Biology 12
Somatic cell hybrid mapping Biology 1
sensory unpleasantries General Discussion 29
Inducing somatic recombination Biology 0