60 neurons found in laminae III though V in a 2mm craniocaudal block. HRP injected in contralateral LCN and exactly 60 neurons were seen in the same corresponding section. Study of several maps constructed from many experiments such as this show a columnar organization. Therefore convergence within each modality. Identified antidromically from thalamic target.
Proximal parts are more medial.
Lateral STT deals more with pain and thermal sense. Ventral STT Deals more with tactile sensation. Complex sensations also. STT neurons receive converging info from mechanoreceptive and nociceptive primary afferents. Large round somata with tufted dendrites form clusters in cuneatus and gracilis.