Chapter 5 The Perceiving Mind: Sensation and Perception Flashcards
Absolute Threshold
The smallest amount of stimulus that can be detected
Binocular Cur
A depth cue that requires the use of both eyes
Bottom-Up Processing
Perception based on 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 perceive 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 light toward 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 a 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 black of the eye
Retinal Disparity
The difference between the images projected onto each eye
Rod
A photoreceptor specialized to detect dim light
Sensation
The process of detecting environmental stimuli or 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 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 neural 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
