PSYC 1013 Lecture Notes - Lecture 9: Autonomic Nervous System, Presbyopia, Retina

• School: Acadia University
• Department: Psychology
• Course: PSYC 1013
• Professor: Mehta Rick

Document Summary

Perception: sensation- information from environment reaches the sense. Senses receive information from the environment and send it back to our brain: perception- selection, organization and interpretation of information from the senses. Energy contains information about the world (light: accessory structure modifies energy, transduction- converting light energy into action potentials. The language of our nervous system: sensory nerves process information, etc. Pathway in the eye: cornea- outmost region of the eye, transparent, the first area that light passes through, pupil- regulates how much light enters the eye, part of the autonomic nervous system. Iris- muscle that controls the pupil: lens- focuses light onto the retina. Accommodation- lens changing shape to focus light onto the retina: retina- the area at the back of the eye that has all the receptors. Fovea- where the world can be seen in detail. Optic disk- no receptors in this area, hence a blind spot.