Copyright information:Taken from "The excitation cascade of ventral photoreceptors: guanylate cyclase as the link between InsP-mediated Carelease and the opening of cGMP-gated channels"BMC Neuroscience 2004;5():7-7.Published online 26 Feb 2004PMCID:PMC375529.Copyright © 2004 Garger et al; licensee BioMed Central Ltd. This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL. Brackets and numbers match sets of five consecutive responses to light (1, 3, 5) or 3dInsP(2, 4, 6) averaged to produce the respective trace in the inset. 3dInsPinjections were interspersed between test flashes during the periods indicated by brackets (2, 4, 6). GtetP was injected during the period indicated by a solid bar. Averaged responses are shown before (1, 2), at the end of drug application (3, 4), and late in recovery (5, 6).