A neural network model of the olfactory system of mice: computer simulation of the attention behavior of mice for some components in an odor |
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Authors: | Zu Soh Michiyo Suzuki Toshio Tsuji Noboru Takiguchi Hisao Ohtake |
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Affiliation: | (1) Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-hiroshima 739-8527, Japan;(2) Microbeam Radiation Biology Group, Japan Atomic Energy Agency, Takasaki, Japan;(3) Graduate School of Advanced Sciences of Matter, Hiroshima University, Hiroshima, Japan;(4) Graduate School of Engineering, Osaka University, Osaka, Japan |
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Abstract: | Recently, it was observed that mice could identify an odor by paying attention to only a few of its components. Further, it
has been reported that each individual is attracted to different components of an odor. This behavior is referred to as “attention”;
however, its mechanism has yet to be completely elucidated. In this paper, we first propose a novel artificial neural network
model based on the biological structure of an olfactory system. Then a series of computer simulations of odorant discrimination
are performed to evaluate the attention ability of the proposed model. Finally, we changed the connective weights between
the neurons to simulate individual differences. The simulation results indicate that the inhibitory connections from the piriform
cortex to the olfactory bulb may contribute to the individual differences observed in the behavioral experiment.
This work was presented in part at the 12th International Symposium on Artificial Life and Robotics, Oita, Japan, January
25–27, 2007 |
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Keywords: | Olfactory system Attention Neural network model |
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