PSYCH 100 Study Guide - Midterm Guide: Detection Theory, Voicemail, Color Vision

• School: UMASS-Amherst
• Department: Psychology & Brain Sciences
• Course: PSYCH 100
• Professor: Tammy Rahhal

Document Summary

**remember visual capture - vision dominates*: define psychophysics. _b__ the greater the intensity of a stimulus, the larger the difference must be to detect a difference. _c__ our sensitivity to an unchanging stimulus diminishes: chance variation, weber"s law, sensory adaptation. Long wavelengths respond to (violets/blues or red/orange): _amplitude__ the intensity of the light wave. In our eyes, we have three sets of cones for each color. Our experience of colors resulting from mixing different levels of response from these three cone types: _opponent process theory__: opposing retinal processes enable color vision. Neural impulses are antagonistic, a stimulus that elicits a response from the red depresses a response of green. Audition - hearing: there are two aspects of sound waves, frequency corresponds to our psychological sensation of _pitch___. The number of complete cycles per unit (hertz-cycles per unit: amplitude corresponds to our psychological sensation of _volume___.