Journal article

Comparison of contrast-dependent phase sensitivity in primary visual cortex of mouse, cat and macaque.

Molis Yunzab, Shaun L Cloherty, Michael R Ibbotson

Neuroreport | LIPPINCOTT WILLIAMS & WILKINS | Published : 2019

Abstract

Neurones in the primary visual cortex (V1) are classified into simple and complex types. Simple cells are phase-sensitive, that is, they modulate their responses according to the position and brightness polarity of edges in their receptive fields. Complex cells are phase invariant, that is, they respond to edges in their receptive fields regardless of location or brightness polarity. Simple and complex cells are quantified by the degree of sensitivity to the spatial phases of drifting sinusoidal gratings. Some V1 complex cells become more phase-sensitive at low contrasts. Here we use a standardized analysis method for data derived from grating stimuli developed for macaques to reanalyse data..

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Funding Acknowledgements

This work was supported by the Australian Research Council Centre of Excellence for Integrative Brain Function (CE140100007), the National Health and Medical Research Council (GNT0525459), the L.E.W Carty Charitable Fund & Lions Foundation of Victoria.