Psychology 1000 Lecture Notes - Lecture 8: Oval Window, Additive Color, Umami

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Derek Quinlan

Document Summary

5. 2 (p. 138: thus, perception of characters is influenced by their context. Week 4: (1) absolute limits of sensitivity (e. g. , what is the softest sound or weakest salt-solution that humans can detect?, (2) differences between stimuli (e. g. , what is the small difference in brightness we can detect?) Stimulus detection: the absolute threshold: absolute threshold: lowest intensity at which a stimulus can be detected correctly. 50% of the time: lower value = greater sensitivity. The difference threshold: distinguishing b/w stimuli can be just as important as detecting them. Vision: normal stimulus = electromagnetic energy (i. e. , light waves, measured in nanometers, sensitive to wavelengths 700 nm (red) to 400 nm (blue-violet, from higher to lower wavelengths: roy g. biv. Photoreceptors: the rods & cones: retina contains specialized neurons and is actually a continuation of the brain, retina contains 2 types of light-sensitive: (1) rods.