| Presentation | 2002/3/11 Encoding of place and episode in population activities of hippocampal ells in a Y-maze alteration task : Analyses by using hippocampal model with theta phase precession Hiroaki WAGATSUMA, Yoko YAMAGUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In spatial tasks, hippocampal neuronal activity not only show the location-specific firing, but also reflects the movement related firing. Eichenbaum et al.(1999) proposed the hypothesis that different types of the hippocampal activation occur in the same location in an alternation task, for the evidence of encoding different episodes. However experimental results to deny and confirm are reported (Wood et al. 2000, Lenck-santini et al. 2001). We hypothesize that a small difference of visual attention in experiences gives a large difference of the network structure encoding different types of episodes into the same network. In our previous model for generating the cognitive map using theta phase precession, a small difference of the visual attention reflects the specific structure of asymmetric connections between nerons with preferences for each episode and neurons with no preferences. This result suggests that even if there are an only small number of neurons associated with an episode, different episodes could encode into the hippocampal network as a population dynamics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hippocampus / Theta phase precession / Place cell / Asymmetric connection |
| Paper # | NC2001-164 |
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| Committee | NC |
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| Conference Date | 2002/3/11(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Encoding of place and episode in population activities of hippocampal ells in a Y-maze alteration task : Analyses by using hippocampal model with theta phase precession |
| Sub Title (in English) | |
| Keyword(1) | Hippocampus |
| Keyword(2) | Theta phase precession |
| Keyword(3) | Place cell |
| Keyword(4) | Asymmetric connection |
| 1st Author's Name | Hiroaki WAGATSUMA |
| 1st Author's Affiliation | Brain Science Institute, RIKEN() |
| 2nd Author's Name | Yoko YAMAGUCHI |
| 2nd Author's Affiliation | CREST, Japan Science and Technology Corporation |
| Date | 2002/3/11 |
| Paper # | NC2001-164 |
| Volume (vol) | vol.101 |
| Number (no) | 735 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |