PSY 105 Lecture Notes - Lecture 4: Oval Window, Subjective Constancy, Basilar Membrane

• School: Ryerson University
• Department: Psychology
• Course: PSY 105
• Professor: Jonathan Wilbiks

Document Summary

Perception is what we make of it. Sensory receptor cells specialized cells that convert a specific form of environmental stimuli into neural impulses. Sensory transduction the process of converting a specific form of sensory data into a neural impulse that our brain can read. Difference threshold (or jnd) the minimal difference needed to notice a difference between two stimuli. Absolute threshold is the smallest amount of a stimulus that one can detect. Bottom-up processing the raw sensory data is sent to the brain and your brain uses all of that data to build a perception. You take 1,000s of data points of visual stimuli and put them together to create an image of your mother. Top-down processing you use previously learned information to help recognize and interpret the data coming into your brain. You recognize some of those data points and immediately match them to your previous knowledge about your mother"s face.