June 2017
Volume 17, Issue 7
Open Access
OSA Fall Vision Meeting Abstract  |   June 2017
Retinal lateral inhibition revisited
Journal of Vision June 2017, Vol.17, 19. doi:https://doi.org/10.1167/17.7.19
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      Jihyun Kim, Marcelo Bertalmío; Retinal lateral inhibition revisited. Journal of Vision 2017;17(7):19. doi: https://doi.org/10.1167/17.7.19.

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      © ARVO (1962-2015); The Authors (2016-present)

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Retinal lateral inhibition has long been known as the ‘contrast encoder’ and the relationship among retinal processing, lateral inhibition, and contrast perception has been discussed in the conventional scheme of difference-of-Gaussian (DoG). However, many studies argued that the classic DoG RF failed to explain contrast perception phenomena involving large spatial scale surface interaction (~1 deg). On the other hand, we recently showed that one of the neglected retinal features, wide-RF of retinal interneurons, explains how the visual system performs long-range interaction (Kim & Bertalmio, 2015). The long-range effect was previously explained by the multiscale DoG model (Blakeslee & McCourt, 1997) that proposes a varying spatial-frequency-bandwidth-channel processing. Here we show that the the retinal hierarchical center-surround processing architecture combined with interneurons of narrow and wide RFs accomplishes multi-channel-like results. We propose an update to the conventional view on lateral inhibition.

Meeting abstract presented at the 2016 OSA Fall Vision Meeting

Kim, J., Bertalmío, M. 2015. MayBrightness assimilation predicted already at retinal level due to the effect of wide receptive-fields of inhibitory feedback cellsThe Fall Meeting of the Optical Society of America VisionSan Jose, CA, USA
Blakeslee, B., McCourt, M. E. 1997. Similar mechanisms underlie simultaneous brightness contrast and grating induction Vision Research 372849–2869 [CrossRef] [PubMed]
 This work was supported by the European Research Council, Starting Grant ref. 306337, by the Spanish government and FEDER Fund, grant ref. TIN2015-71537-P(MINECO/FEDER,UE), and by the Icrea Academia Award.

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