| Presentation | 2005/6/16 Topological maps by STDP for input space with discrete and continuous features Yutaka SAKAI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Position-and-scale-free representations of shapes are acquired by neurons in the inferior temporal (IT) cortex. So each neuron receives information from the whole visual field. Familiar shapes are extremely limited from all the possible shapes on the whole visual field. So they must be clustered in the shape space to have mixed structure of continuity and discreteness. We demonstrate that multiple representation can be acquired in a spike-based model for topological maps based on the spike-timing-dependent synaptic plasticity (STDP), subjected to a set of inputs on two rings, which is a simple example of mixed structure. In this representation, the position on each ring is represented by a center of active neurons and the difference of rings is represented by a detail pattern of active neurons. Neurons in the same region exhibit high activities for an input on the other ring. The result is consistent with the fact observed in IT cortex that neighboring neurons exhibit different preferences while the region of active neurons is continuously shifted for continuous changes of object. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | spike-timing-dependent plasticity (STDP) / SOM / topological map / inferior temporal (IT) cortex |
| Paper # | NC2005-17 |
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| Committee | NC |
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| Conference Date | 2005/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| 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) | Topological maps by STDP for input space with discrete and continuous features |
| Sub Title (in English) | |
| Keyword(1) | spike-timing-dependent plasticity (STDP) |
| Keyword(2) | SOM |
| Keyword(3) | topological map |
| Keyword(4) | inferior temporal (IT) cortex |
| 1st Author's Name | Yutaka SAKAI |
| 1st Author's Affiliation | Faculty of Engineering, Tamagawa University() |
| Date | 2005/6/16 |
| Paper # | NC2005-17 |
| Volume (vol) | vol.105 |
| Number (no) | 130 |
| Page | pp.pp.- |
| #Pages | 6 |
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