PSY100H1 Chapter 5: chapter 5 notes from text
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PSY100H1 Full Course Notes
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Sensation: how sense organs respond to external stimuli and transmit the responses on the brain. Perception: the processing, organization and interpretation of sensory signals that result in an internal representation of the stimulus. Transduction: a process by which sensory receptors produce neural impulses when they receive physical or chemical stimulation. Absolute threshold: the minimum intensity of stimulation that must occur before one can experience a sensation. Difference threshold: the minimum amount of change required in order to detect a difference between intensities of stimuli. Sensory adaptation: when an observers sensitivity to stimuli decreases over time. Taste buds: sensory receptors that transducer taste information. The study of sensation focuses on how our sense organs respond to and detect external stimulus energy. Stimuli need to be transduced in order for the brain to use that information. Sensory coding for quantitative factors, such as intensity and loudness, depends on the number of neurons firing and how frequently they fire.
