Figure 23

Figure 23. Dopamine affects synaptic gain and receptive fields in fish horizontal cells. A. Photoresponses were recorded from a horizontal cell in the intact carp retina using light stimuli of fixed intensity but different diameter, under control conditions and after exposure to dopamine. The illustration is from Mangel and Dowling, 1985 (220). B. Dopamine by itself did not elicit any current response in a horizontal cell isolated from white perch retina (upper trace). However in the presence of dopamine the inward current elicited by the AMPA/kainate agonist kainic acid (middle trace) was significantly augmented (bottom trace). The illustration is from Knapp and Dowling, 1987 (231).

From: S-Potentials and Horizontal Cells

Cover of Webvision
Webvision: The Organization of the Retina and Visual System [Internet].
Kolb H, Fernandez E, Nelson R, editors.
Salt Lake City (UT): University of Utah Health Sciences Center; 1995-.

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