Receptive-field properties of Q retinal ganglion cells of the cat

Autor:	D E Schweitzer-Tong, John B. Troy, Ch. Enroth-Cugell
Rok vydání:	1995
Předmět:	Retinal Ganglion Cells Physics Retina Light Physiology Summation Luminance Retinal ganglion Sensory Systems Contrast Sensitivity Electrophysiology medicine.anatomical_structure Retinal ganglion cell Receptive field Space Perception Cats medicine Animals Spatial frequency Visual Fields Neuroscience
Zdroj:	Visual Neuroscience. 12:285-300
ISSN:	1469-8714 0952-5238
DOI:	10.1017/s0952523800007975
Popis:	The goal of this work was to provide a detailed quantitative description of the recepii ve-field properties of one of the types of rarely encountered retinal ganglion cells of cat; the cell named the Q-cell by Enroth-Cugell et al. (1983). Quantitative comparisons are made between the discharge statistics and between the spatial receptive properties of Q-cells and the most common of cat retinal ganglion cells, the X-cells. The center-surround receptive field of the Q-cell is modeled here quantitatively and the typical Q-cell is described. The temporal properties of the Q-cell receptive field were also investigated and the dynamics of the center mechanism of the Q-cell modeled quantitatively. In addition, the response vs. contrast relationship for a Q-cell at optimal spatial and temporal frequencies is shown, and Q-cells are also demonstrated to have nonlinear spatial summation somewhat like that exhibited by Y-cells, although much higher contrasts are required to reveal this nonlinear behavior. Finally, the relationship between Q-cells and Barlow and Levick's (1969) luminance units was investigated and it was found that most Q-cells could not be luminance units.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3289a0e2a68fc427b57b9610e69c5d2 https://doi.org/10.1017/s0952523800007975 Zobrazit plný text záznamu