PY - Psychology PY 100S Chapter Notes - Chapter 4: Cilium, Olfactory Receptor, Depth Perception
14 Oct 2016
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Learning objectives: define sense, sensation, and perception. Explain the differences between sensation and perception. (smell, hearing, sight, etc. ) Sense: a system that translates outside information into activity in the nervous system. Sensation: raw information from the senses (involves accessory structures and transduction) Perception: the process of making sensations into meaningful experiences: define accessory structure, transduction, receptor, and encoding. Define and give an example of adaptation: accessory structures: structures in sensory systems that modify an incoming stimulus, transduction: the process by which an incoming stimulus is converted to neural signals. Occurs at specialized cells called receptors: adaptation: decreasing responsiveness to an unchanging stimulus; receptors respond best to changing stimuli. Explain the influence of internal noise and response bias, or response criterion, on perception. Psychophysics: the branch of psychology that deals with the relationships between physical stimuli and mental phenomena: absolute threshold: the smallest amount of energy (of stimulus) that produces a sensation at least half the time.
