PSY-200 Lecture Notes - Lecture 1: Optic Chiasm, Optic Nerve, Insecticide

• School: University of Tampa
• Department: Psychology
• Course: PSY-200
• Professor: Michael J Stasio

Document Summary

Sensation: physical process, stimulation of sense organs by outer world, receiving info, not making sense of it, sense organs respond to/translate environmental stimuli into nerve impulse which is sent to the brain. Perception: psychological process, interpreting sensory experience, making sense of what is received, compares new stimuli to previous experiences, organizes stimulus output and gives it meaning. Transmission of sense info: afferent neurons (sensory) Neurons at sense organs convert physical energy to neural impulse. Neurons extended from sc to extremities to more muscles & bones. **early views of schizophrenia were that sensory organs weren"t working. Sensitivity diminishes when an object constantly stimulates our senses. Allows us to be highly sensitive to change in stimulation: transduction. **example: parents don"t have sensitivity adaption to baby crying. Retinal pathway: rods & cones, bipolar cells, ganglion cells, optic nerve, brain. The optic nerve: ganglion cells, blind spot, optic chiasm, lateral geniculate nucleus (lgn) of the thalamus.