PSYCO105 Lecture Notes - Cochlea, Detection Theory, Neural Coding
31 Oct 2013
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Synaesthesia- the perceptual experience of one sense that is evoked by another sense. Sensation-simple awareness due to the stimulation of a sense organ. Perception-the organization, identification, and interpretation of a sensation in order to form a mental representation. Transduction-what takes place when many sensors in the body convert physical signals from the environment into neural signals sent to the central nervous system. Just noticeable difference (jnd)-the minimal change in a stimulus that can just barely be detected. Weber"s law-the jnd of a stimulus is a constant property despite variations in intensity. Signal detection theory-an observation that the response to a stimulus depends both on a person"s sensitivity to the stimulus in the presence of noise and on a person"s response criterion. Sensory adaptation-sensitivity to prolonged stimulation tends to decline over time as an organism adapts to certain conditions. Retina-light sensitive tissue lining the back of the eyeball. Accommodation-the process by which the eye maintains a clear image on the retina.
