Rhodopsin:

Watch this 2-Minute Neuroscience video to learn more about the retina, the location of the rods (and thus rhodopsin).

photopigment in rods. When light interacts with rhodopsin, it triggers a cellular cascade that propagates the visual signal.

Neuroscientifically Challenged

Neuroscientifically Challenged is a neuroscience learning resource. In addition to a blog that discusses science current events in a non-technical manner, you will also find a number of videos and articles that you can use to learn about basic principles of science and the brain.