Autor: |
Basabi Bhaumik, K.J. Dhanaraj |
Rok vydání: |
2015 |
Předmět: |
|
Zdroj: |
IJCNN |
Popis: |
Through a reaction-diffusion based model we have studied modulation ratio (MR) in layer 2=3 cells in cat primary visual cortex. The reaction-diffusion based developmental model is based on resource limited competition and diffusive cooperation among neighboring cells. We have obtained receptive fields (RFs) and responses of binocular cells in layer 2=3. The ON- OFF subregion overlap in RF is quantified. We observe a significant correlation between RF ON-OFF subregion overlap and MR. For almost all the cells in layer 2=3 MR 1 and behave as simple cells. Based on modulation index from spiking response our modelled layer 2=3 cell population has 76% complex cells and 24% simple cells. We find that local lateral connections have less influence on MR but improve the tuning characteristics of cells significantly. |
Databáze: |
OpenAIRE |
Externí odkaz: |
|