PSY 102 Lecture Notes - Lecture 4: Change Blindness, Phi Phenomenon, Thalamus
8 Oct 2015
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Document Summary
: detection of physical energy by sense organs (eyes, ears, nose, skin: bottom-up process by which our sensory organs receive and replay sensory input, sense organs relay info to the brain. : brain"s interpretation of input from sense organs: top-down way our brains organize (watch crash course)*, gives meaning and coherence to raw data. Our perceptions don"t always match reality: e. g. filling in, reconstruction, interpolation. Converts external stimuli into electrical signals with neurons: done by sense receptors specific to certain stimuli (sight, smell, touch) Sensory adaptation: activation is greatest when a stimulus is first detected: response diminishes over time to conserve energy. Study of how we perceive sensory stimuli based on their physical characteristics. : the lowest level of a stimulus that we can detect 50% of the. : the smallest change in the intensity of a stimulus that: the stronger the stimulus, the bigger the change in intensity needed for us, ex.
