PSYO 111 Chapter Notes - Chapter 4: Retinal Ganglion Cell, Detection Theory, Optic Chiasm

• School: UBC Okanagan, UBC OK
• Department: Psychology
• Course: PSYO 111
• Professor: Maya Libben

Document Summary

Sensation: simple stimulation of a sense organ- basic registration of the senses as part of your body interact with the physical world. Perception: takes place after sensation- the organization, identification, and interpretation of a sensation in order to form a metal representation. Ex) sensation: eyes looking at black squiggles on a page. Transduction: sensors in the body convert physical signals from the environment into encoded neural signals sent to the cns. Taste and smell: molecules in air or saliva. Methods that measure the strength of a stimulus and the observation"s sensitivity to that stimulus. How much physical energy is required for an observer to become aware of a sensation. Absolute threshold: the minimal intensity needed to just barely detect a stimulus in 50% of the trials. Boundary between two psychological states ( awareness and unawareness) Touch: a flys wing falling on the cheek from 1 cm away. Taste: a teaspoon of sugar in two gallons of water.