PSYCH 7A Chapter Notes - Chapter 5: Color Vision, Sound, Afterimage
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PSYCH 7A Full Course Notes
Verified Note
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Document Summary
Process by which physical energy from the environment is detected by the sense receptors and then encoded as neural signals. Process by which we organize and interpret the sensory information, allowing us to give meaning to objects and events. Psychophysics the study of relationships between the physical characteristics of stimuli and our psychological experience of them. Absolute threshold the minimum stimulation required to detect a particular stimulus 50% of the time. Senses: with regards to sensation, transduction means converting stimulus energies (sights, Determined by wavelength - the distance from one wave peak to the next. Focuses incoming rays onto retina accommodatio n lens changes shape. Light- sensitive inner surface onto which light rays focus. Duplex theory: we have two receptor types (rods and cones) and they handle different aspects of vision. Cones: day vision (high levels of illumination) color vision. Rods: black and white (achromatic) vision, night vision (low levels of illumination)
