PY 101 Lecture Notes - Lecture 3: Detection Theory, Neural Adaptation, Neuroimaging
16 Nov 2017
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Document Summary
Process by which receptors in our sensory organs and the nervous system receive and detect stimuli. Process through which information about these stimuli is organized, interpreted, and transformed into something meaningful. Drawing on past experiences and knowledge to understand and interpret sensory information. Taking basic information about incoming sensory stimuli and processing it for further interpretation. The process of transforming stimuli into neural signals. Neural signals processed by central nervous system. Weakest sensory stimuli that can be detected 50% of the time. Minimum difference between two stimuli noticed 50% of the time. Helps us stay alert of other stimuli. Neuroimaging demonstrates we do respond to subliminal presentations. Explains how various factors influence ability to detect weak environmental signals. How we detect information depends on other sensory factors. Eyes do not see faces, objects, or scenery. Only portion of color spectrum humans see. Includes clear outer layer over colored portion of eye. Shields eye from damage by dust, bacteria, and pokes.
