Psychology 1000 Chapter Notes - Chapter 5: Sound, Taste, Color Vision

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Mark Holden

Document Summary

Sensation stimulation of the sensory receptors: e. g. light eye, sound wave ear. Perception organizing sensory input and giving it meaning : qualitative experience of the sensation. Humans have more than the standard 5 senses: vision, hearing, taste, touch, smell, also balance, body position, temperature Lowest intensity necessary for a stimulus to be detected 50% of the time. Lower threshold means we are more sensitive to a stimulus. The smallest difference between two stimuli that people can detect 50% of the time: ex. Can you tell the difference between 300g weight vs. a. Size of the jnd the magnitude of the 1st stimulus. Every stimulus type has a different fraction/proportion. As stimuli get more intense" (louder, heavier, brighter, etc: ex. Weber"s fraction for lifting weights is 1/30 difference must also increase for use to perceive it: or, constant differences get less and less noticeable. Why do signal detection theorists view perception as a.