PSYO 111 Chapter Notes - Chapter 4: Absolute Threshold, Psychophysics, Olfactory Nerve

• School: UBC Okanagan, UBC OK
• Department: Psychology
• Course: PSYO 111
• Professor: Dr Mark Holder

Document Summary

Sensation: simple stimulation of a sense organ: the basic registration of light, sound, pressure, odour, or taste as parts of your body interact with the physical world. Perception: the organization, identi cation and interpretation of a sensation in order to foam a mental representation. Transduction: when many sensors in the body convert physical signals from the environment into encoded neural signals sent to the central nervous system: vision. Light re ected from surfaces provides the eyes with information about the shape, colour and positions of objects: audition. Vibrations cause changes in air pressure that move through space to the ear: touch. Pressure of a surface against the skin signals its shape, texture, and temperature: taste and smell. Molecules dispersed in the air or dissolved in saliva reveal the identity. Psychophysics: methods that measure strength of a stimulus and observer"s sensitivity. Researches ask people to make a simple judgement.