A neural mechanism of AM frequency selectivity of pyramidal cell circuit in electrosensory lateral-line lobe of weakly electric fish

摘要

To clarify the neuronal mechanism by which a certain amphtude modulation (AM) frequency of electric organ discharge (EOD) is extracted from a single EOD stimulus whose amplitude is modulated simultaneously with various frequency components, we proposed a microscopic model of electrosensory lateral-line lobe (ELL). We showed that the selective extraction of AM frequency comes from the tuning property of a single bp cell and the synchronization of activity among the cells connected mutually with the electric synapses in ELL.