PS263 Chapter Notes - Chapter 6: Lateral Geniculate Nucleus, Color Vision, Receptive Field
Document Summary
The law of specific nerve energies: statement that whatever excites a particular nerve always sends the same kind of information to the brain. The eye and its connections to the brain: Pupil: opening in the center of the eye where the light enters. It is focused by the lens (adjustable) and cornea (not adjustable) and projected onto the retina: retina: the rear surface of the eye, which is lined with visual receptors. Light from the left side of the world strikes the right half of the retina, and vice versa. Light from above strikes the bottom half of the retina, and light from below strikes the top half. Route within the retina: bipolar cells: type of neuron in the retina that receives input directly from the receptors. Fovea and periphery of the retina: fovea: a tiny area of the retina specialized for acute, detailed vision, midget ganglion cells: ganglion cells in the fovea of humans and other primates.
