Chapter 5 Vocab Flashcards
Absolute threshold
The smallest amount of stimulus that can be detected
Binocular cue
A depth cue that required the use of both eyes
Bottom-up processing
Perception based non building simple input into more complex perceptions
Cone
A photoreceptor in the retina that processes color and fine detail
Depth perception
The ability to use the two dimensional image projected on the retina to percieve three dimensions
Difference threshold
The smallest detectable difference between two stimuli
Fovea
an area of the retina that is specialized for highly detailed vision
Lens
The clear structure behind the pupil that bends lights towards the retina
Monocular cue
A depth cue that requires the use of only one eye
Opponent process theory
A theory of color vision that suggests we have red-green color channel and a blue-yellow color channel in which activation of one color in each pair inhibits the other color
Perception
The process of interpreting sensory information
Retina
Layers of visual processing cells in the back of the eye
Retinal display
Then difference between the images projected onto each eye
Rod
A photoreceptor specialized to detect dim light
Sensation
The process of detecting environmental stimuli to stimuli arising from the body
Sensory adaptation
The tendency to pay less attention to a non changing source of stimulation
Signal detection
The analysis of sensory and and decision-making processes in the detection of faint, uncertain stimuli
Top-down processing
A perceptual process in which memory and other cognitive processes are required for interpreting incoming sensory information
Transduction
The translation of incoming sensory information into neutral signals
Trichromatic theory
A theory of color vision based on the existence of different types of cones for the detection of short, medium, and long wavelengths
