two pathways carry information from skin to brain
Dorsal and anterolateral
Dorsal column system
touch
Anterolateral
pain and temperature
Dermatone
a strip of skin innerved by a particular spinal root, send info through the dorsal pathway
Cortical Columns shows specificity for
modality and location
each cortical cell has a precise receptor fields and responds to only one
submodality
within a column, all cells respond to same
same stimulation and location