PSYC100 Chapter Notes - Chapter 4: Hermann Von Helmholtz, Basilar Membrane, Incus
9 Feb 2017
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Document Summary
Sense: system that translates info from outside the nervous system into neural activity. Accessory structures: (1st step in sensation) structures, such as the lens of the eye, that modify a stimulus; they reshape the light, sound or other energy that comes to us from the environment. Transduction: (2nd step in sensation) process of converting incoming energy into neural activity: neural receptors: specialized cells that detect certain forms of energy and transduce them into nerve cell activity. Sensory adaptation: the process through which responsiveness to an unchanging stimulus decreases over time. Encoding: translation of the physical properties of a stimulus into a pattern of nerve cell activity that specifically identifies those properties. Specific energy doctrine: the stimulation of a particular sensory nerve provides codes for that sense, no matter how the stimulation takes place. Amplitude: difference b/w peak and baseline of a waveform. Wavelength: distance from 1 wave peak to the next.
