Lateral interactions in the perception of flicker and in the physiology of the lateral geniculate nucleus

Journal of Vision
J KremersBjørg Elisabeth Kilavik

Abstract

The perception of flicker strength in a center stimulus can be affected by the presence of a surrounding stimulus. We correlated this effect with the interactions between centers and surrounds of the receptive fields (RFs) of neurons in the retino-geniculate pathways. The responses of cells in the lateral geniculate nucleus (LGN) of two New World monkey species, the common marmoset (Callithrix jacchus), and the owl monkey (Aotus azarae) were measured to two spatially non-overlapping sinusoidally modulating luminance stimuli of equal temporal frequency, one of which mainly stimulated the RF center, the other the RF surround. The relative temporal phase between the center and surround stimuli was varied. The response amplitude as a function of relative phase between the center and surround stimuli can be described by a simple model where the RF center and surround responses are vector-added. A minimal response was reached for stimuli in which the surround stimulus led the center stimulus, indicating that the RF surround response lagged the center response. The flicker strength in the center stimulus perceived by human observers was measured psychophysically. It was found that the perceived flicker strength could be described by t...Continue Reading

Citations

Jan 28, 2014·PloS One·Vladímir de Aquino SilveiraLuiz Carlos de Lima Silveira
Apr 7, 2007·The Journal of Physiology·Vladislav KozyrevJan Kremers
Jan 9, 2016·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Jonathan Denniss, Allison M McKendrick
Aug 7, 2007·Neuron·Nicholas A LesicaJose-Manuel Alonso
Oct 31, 2006·Vision Research·Jan Kremers, Ulrike Rimmele
Aug 26, 2014·Frontiers in Neural Circuits·Samuel G Solomon, Marcello G P Rosa
Sep 21, 2005·Vision Research·Inger Rudvin, Arne Valberg
May 19, 2018·Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)·Allison M McKendrickBao N Nguyen

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