PSYA01H3 Lecture Notes - Vestibular System, Monosodium Glutamate, Absolute Threshold
Document Summary
Synesthesia: the perceptual experience of one sense that is evoked by another sense. Our senses encode the information our brains perceive. Sensation: simple stimulation of a sense organ, basic registration of light, sound, pressure, odor, taste. Perception: the organization, identification, and interpretation of a sensation in order to form a mental representation. Transduction: when many sensors in the body convert physical signals from the environment into encoded neural signals sent to the central nervous system. Gustav fechner, an approach to measure sensation and perception. Psychophysics: methods that measure the strength of a stimulus and the observer"s sensitivity to that stimulus. Absolute threshold: the minimal intensity needed to just barely detect a stimulus, a boundary. Useful for assessing how sensitive we are to faint stimuli. Just noticeable difference (jnd): the minimal change is a stimulus that can just barely be detected. Weber"s law: the just noticeable difference of a stimulus is a constant proportion despite variations in intensity.
