Neural Mechanism for Elimination of Negative Effect arising from Fish's Own Motion on Electrolocation

摘要

To clarify the neuronal mechanism for elimination of negative effect arising from the fish's own motion, we propose a model of electrosensory lateral line lobe(ELL) including the descending pathways from higher sensory systems and motor region. A basilar and nonbasilar pyramidal cells in our model code a rise and a fall of stimulus amplitude, and their response properties are adjusted by the descending signals. The large disturbance of original signals induced by the fish's own motion is canceled when the negative image of its motion is generated in ELL.