Title :
A realistic computer simulation of primary somatosensory cortex replicating static properties of topographic organization
Author :
Mazza, Marcelo Bastos ; Roque-da-Silva, A.C.
Author_Institution :
Dept. de Fisica e Matematica, Sao Paulo Univ., Brazil
Abstract :
A model of the somatosensory system has been constructed with the neuro-simulator GENESIS as a network of 1,024 pyramidal cells and 512 baskets cells connected to 512 tactile receptors representing the hand surface reproducing processes of formation and maintenance of somatotopic maps. The model presents results such as variability in the shapes and sizes of the areas of cortical representation, values of cortical magnifications in agreement with experimental findings and linear decay of receptive fields overlap as a function of cortical distance between recording sites in normal conditions
Keywords :
neural nets; neurophysiology; physiological models; touch (physiological); GENESIS; computer simulation; cortical representation; neural nets; neurophysiology; primary somatosensory cortex; receptive fields; tactile receptors; topographic organization; Computer simulation;
Conference_Titel :
Neural Networks, 1998. Proceedings. Vth Brazilian Symposium on
Conference_Location :
Belo Horizonte
Print_ISBN :
0-8186-8629-4
DOI :
10.1109/SBRN.1998.731020
