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Sparse coding models demonstrate some non-classical receptive field effects
BMC Neuroscience volume 11, Article number: O21 (2010)
Non-classical receptive field (nCRF) effects include several response properties in V1 neurons not explained by a linear-nonlinear (LN) receptive field model, but instead requiring significant interactions between V1 neurons. Using a sparse coding model [1, 2] and bar and grating stimuli, simulated physiology experiments were carried out that replicated several nCRF phenomena reported previously in neurophysiology experiments. These include: end-stopping  (Fig. 1), contrast invariance of orientation tuning  (Fig. 2), radius, orientation, and contrast tunings of surround suppression [5, 6] (Fig. 3, 4, 5). The results suggest that a sparse coding model can explain many of the nonlinear effects in V1 cells, and is therefore a reasonable candidate for a functional model of striate cortex.
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Zhu, M., Rozell, C.J. Sparse coding models demonstrate some non-classical receptive field effects. BMC Neurosci 11, O21 (2010) doi:10.1186/1471-2202-11-S1-O21
- Receptive Field
- Nonlinear Effect
- Field Effect
- Field Model
- Functional Model