The light sensor of vertebrate scotopic (low-light) vision, rhodopsin, is a G-protein-coupled
receptor comprising a polypeptide chain with bound chromophore, 11-cis-retinal, that …

Light profoundly affects our mental and physical health. In particular, light, when not
delivered at the appropriate time, may have detrimental effects. In mammals, light is …

Absorbance spectra were recorded by microspectrophotometry from 39 different rod and
cone types representing amphibians, reptiles, and fishes, with A1-or A2-based visual …

Humans and other animals demonstrate the ability to perceive and respond to temporally
relevant information with characteristic behavioral properties. For example, the response …

When light is absorbed within the outer segment of a vertebrate photoreceptor, the
conformation of the photopigment rhodopsin is altered to produce an activated photoproduct …

How Do Action Potentials Represent Information? given that the price of home video
systems is strongly Action potentials are the standard signal conveyed berelated to how …

Death is defined as the irreversible cessation of circulatory, respiratory or brain activity.
Many peripheral human organs can be transplanted from deceased donors using protocols …

This article is divided into two sections. The first outlines the molecular events that underlie
the onset of phototransduction, the photoreceptor's response to light, and provides a …

Publisher Summary This chapter discusses the research that has characterized the G-
protein cascade of transduction in vertebrate photoreceptors, with particular emphasis on …

Intrinsically photosensitive retinal ganglion cells (ipRGCs) are a subset of cells that
participate in image-forming and non–image-forming visual responses. Although both …