PSYC 401 Lecture Notes - Lecture 6: Retina, Temporal Lobe, Optic Chiasm
Document Summary
Sensation = when sensory stimuli from environment interact with sensory receptors. Right and left are flipped left visual field goes to right path of each retina, right visual field goes to left path of each retina. Right visual field left hemisphere, left visual field right hemisphere. Visual pathway within the eyeball: light has to pass through several layers of cells to get to receptors. Retina optic nerve optic chiasm (where optic nerves meet up from each side) lateral geniculate nucleus of thalamus visual cortex **test** Receptive field: particular group of receptors meant for particular visual sensory stimulus specific areas to cortex. Lens inverse and reverse light waves, help eyes focus image onto retina. Pupil processing light dilation or contraction. Fovea point of central focus, lots of cones. Vertebrate retina: light rays optic nerve fibers ganglion cells (g) (final part of pathway)
