chapter 5 Flashcards
sensation
The process of detecting environmental stimuli or stimuli arising from the body, responses to those stimuli and the transmission of responses to the brain
perception
The process of interpreting sensory information. - internal representation of stimuli
psychophysics
The study of relationships between the physical qualities of stimuli and the subjective responses they produce.
absolute threshold
The smallest amount of stimulus that can be detected.
difference threshold
The smallest detectable difference between two stimuli.
sensory adaptation
The tendency to pay less attention to a nonchanging source of stimulation.
audition
The sense of hearing.
agnosia
Loss of the ability to identify objects using one or more senses
binocular cue
A depth cue that requires the use of both eyes.
bottom up processing
Perception based on building simple input into more complex perceptions.
top down processing
A perceptual process in which memory and other cognitive processes are required for interpreting incoming sensory information.
cochlea
The structure in the inner ear that contains auditory receptors.
cone
A photoreceptor in the retina that processes colour and fine detail.
cornea
The clear surface at the front of the eye that begins the process of directing light to the retina.
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.
somatosensory homunculus
The body senses, including body position, touch, skin temperature, and pain.