PSYC 1020H Lecture Notes - Lecture 7: Cochlea, Mcgurk Effect

• School: Trent University
• Department: Psychology
• Course: PSYC 1020H
• Professor: Dr Neil Fournier

Document Summary

The physical world around us is an illusion constructed in your head. If you were able to perceive reality as it is out there, you would not recognize it at all (no sound, no taste, not smell) The actual organ of hearing, the organ of corti is a chamber inside the cochlea. Auditory pathway: auditory receptors in cochlea (sensory receptors) The conversation of light into neural signals occurs in the photoreceptors. Rods: greater number of disks and higher photopigment concentration -> 1000 times more sensitive to light than cones, high sensitivity (black and white, 120 million rods, low acuity (coarse details) Cones: responsible for our ability to see colour contain one of three different photopigments, less sensitive, 5-6 million cones, high acuity (fine detail) Cones have overlap in their responses and the differences are recorded as three opponent channels. As such, cones can only detect presence of one colour at a time.