MATSUDA Yoshitatsu, YAMAGUCHI Kazunori
Transactions of Information Processing Society of Japan, 40(3) 1091-1105, Mar 15, 1999
Theoretical researches on the formation of brain topographic mapping have been carried out by computer simulation based on Hebb's law, which shows that self-organization based on Hebb's law can model the formation of local column structure as ocular dominance column or orientation column. However, the self-organization based on Hebb's law cannot model the formation of global topographic mapping such as retinotopic mapping in visual system or somatotopic mapping in somatosensory system. In this paper, we examine some well known facts of human cognitive and neuron system and introduce a principle for forming a global topographic mapping: "Global topographic mapping is formed by the law that draws cortex neurons spacially nearer, which correspond to input neurons that frequently change their values simultaneously. "We model this law, carry out computer simulation of the formation of visual system global topographic mapping (retinotopic mapping), and discuss this law's relevance and generality.