PSYC 1001 Lecture Notes - Lecture 4: Middle Ear, Cochlear Nerve, Cochlea

• School: Carleton University
• Department: Psychology
• Course: PSYC 1001
• Professor: Bruce Tsuji

Document Summary

Starts from outside and takes a one way trip to. The way that our brains are engaged when we are engaged in the process of perception. Bottom-up processing: automatic, parallel; sensation, components of stimulus detected by sensory receptors, bits of information transmitted to brain, combined & assembled into whole pattern that a person perceives. Influenced by past experience & knowledge (ex: suv picture. We know that things farther in the distance will appear smaller: helps find meaningful links between individual elements taken in by sensory receptors, we have to exert cognitive energy to make it happen. Fly"s wing falling 1 cm on your cheek. Difference threshold: smallest increase or decrease in stimulus for just noticeable difference (jnd) detectable 50% of time. Jnd a percentage of total value of stimulus. If you"re carrying a sack of potatoes and someone adds one, you will feel it. But if someone was to add a feather, it would not be noticed.