Artificial Life and Robotics

, 14:371 | Cite as

Self-organization of orientation-selective and ocular-dominance maps through spike-timing-dependent plasticity

Original Article


In the primary visual cortex, there are orientation-selective and ocular-dominance maps. These maps correlate with each other. Although many models have been proposed which explain the formation of the orientation-selective map and the ocular-dominance map, these models contain a physiologically implausible process. It is indicated that spike-timing-dependent plasticity (STDP) can yield a “topographic map” without any constraints. We show that large STDP time constants yield the orientation-selective map, and small STDP time constants yield the ocular-dominance map. This result suggests that the relationship between the orientation-selective and the ocular-dominance maps can be explained by the modulation of STDP time constants.

Key words

Orientation-selective map Ocular-dominance map Spike-timing-dependent plasticity 


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Copyright information

© International Symposium on Artificial Life and Robotics (ISAROB). 2009

Authors and Affiliations

  • Koji Iwayama
    • 1
  • Kazuyuki Aihara
    • 1
    • 2
    • 3
  • Hideyuki Suzuki
    • 1
    • 2
  1. 1.Graduate School of Information Science and TechnologyUniversity of TokyoTokyoJapan
  2. 2.Institute of Industrial ScienceUniversity of TokyoTokyoJapan
  3. 3.Aihara Complexity Modelling ProjectERATO, JSTTokyoJapan

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