Psych I&II Sensation & Perception

Front

the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

Back

sensation

Front

The act of becoming aware through the senses, experiences, learning, and motivation.

Back

perception

Front

the weakest amount of a stimulus that a person can detect half the time

Back

absolute threshold

Front

the smallest detectable difference between two stimuli

Back

difference threshold

Front

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.

Back

signal-detection theory

Front

the adjustable opening in the center of the eye through which light enters

Back

pupil

Front

the transparent structure behind the pupil that changes shape to help focus images on the retina

Back

lens

Front

Light sensitive layer of the eye; contains rods and cones

Back

retina

Front

carries neural impulses from the eye to the brain

Back

optic nerve

Front

the differences between the images stimulating each eye (binocular cue)

Back

retinal disparity