Receptive field mechanisms of sustained and transient retinal ganglion cells in the cat.

Experimental Brain Research
P Hammond

Abstract

Receptive field organization of 135 sustained and 45 transient retinal ganglion cells was investigated in lightly pentobarbitone-anaesthetised cats. Stimuli were concentric annuli presented alone or simultaneously with a small spot centred on the receptive field, against photopic, mesopic or scotopic backgrounds. The addition of the test spot led to reduction in diameter of the centre-surround boundary of receptive fields of sustained retinal ganglion cells (assessed with annuli), and a decrease in diameter of the annulus which was most effective on the surround. In transient cells there was only marginal reduction in diameter of the centre-surround boundary, measured with annuli, and little or no decrease in diameter of the most effective annulus. Reducing background intensity from photopic to scotopic induced changes in response patterns and receptive field organization of sustained and transient retinal ganglion cells which were independent of stimulus intensity. Against photopic backgrounds, large annuli evoked surround-type responses from the majority of transient ganglion cells and from all sustained cells. In the scotopic range, surround-type responses could still be evoked from sustained cells, whereas predominantly cen...Continue Reading

Citations

Jun 24, 1985·Brain Research·D I Hamasaki, G W Maguire
Aug 1, 1983·Behavioural Brain Research·M S Loop, C L Millican
May 15, 2012·Progress in Retinal and Eye Research·Wallace B Thoreson, Stuart C Mangel
Feb 9, 2007·Perception·Peter H Schiller, Christina E Carvey
Apr 28, 2006·Visual Neuroscience·Elena Ivanova, Frank Müller
Feb 6, 2017·The Journal of General Physiology·Xiwu ZhaoKwoon Y Wong
Jan 1, 1979·Journal of the Optical Society of America·H H Matteson, J H Lewis

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