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Chapter

PSYC 100 Chapter Notes -Receiver Operating Characteristic, Absolute Threshold, Detection Theory


Department
Psychology
Course Code
PSYC 100
Professor
Ingrid Johnsrude

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Sensation and Perception 6/8/2012 6:47:00 AM
Sensation detection of simple properties of stimuli (brightness, colour, warmth)
Perception detection of objects, their locations, their movements and their
backgrounds
E.g., seeing a colour red is sensation, but seeing a red apple is perception
Transduction - the process by which sense organs concert energy from environmental
events into neural activity
Receptor cell a neuron that directly responds to a physical stimulus, such as light or
vibrations
Anatomical coding interpreting the location and type of sensory stimulus according to
which incoming nerve fibres are active
E.g. rubbing your eyes will mechanically stimulate the light sensitive receptors located
there. This then produces action potential in the axons of the nerves that connect the
eyes with the brain
Temporal coding the coding of information in terms of a time (such as rate)
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