Shared Flashcard Set

Details

Chapter 8
Psychology
23
Psychology
12th Grade
04/04/2012

Additional Psychology Flashcards

 


 

Cards

Term
sensation
Definition
what occurs when a stimulus activates a receptor
Term
perception
Definition
the organization of sensory information into meaningful experiences
Term
psychophysics
Definition
the study of the relationships between sensory experiences and the physical stimuli that cause them
Term
absolute threshold
Definition
the weakest amount of stimulus that a person can detect half the time
Term
difference threshold
Definition
the smallest change in physical stimulus that can be detected half the time
Term
Weber's law
Definition
the principle that for and change in a stimulus to be detected, a constant proportion of that stimulus must be added or subtracted
Term
signal-detection theory
Definition
the study of peoingple's tendencies to make correct judgements in detecting the presence of stimuli
Term
pupil
Definition
the opening in the iris that regulates the amount of light entering the eye
Term
lens
Definition
a flexible, elastic, transparent structure in the eye that changes its shape to focus light on the retina
Term
retina
Definition
the innermost coating of the back of the eye, containing the light-sensitive receptor cells
Term
optic nerve
Definition
the nerve that carries impulses from the retina to the brain
Term
binocular fusion
Definition
the process of combining the images received from the two eyes into a single, fused image
Term
retinal disparity
Definition
the differences between the images stimulating each eye
Term
auditory nerve
Definition
the nerve that carries impulses from the inner ear to the brain, resulting in the perception of sound
Term
vestibular system
Definition
three semicircular canals that provide the sense of balance, located in the inner ear and connected to the brain by a nerve
Term
olfactory nerve
Definition
the nerve that carries smell impulses from the nose to the brain
Term
kinesthesis
Definition
the sense of movement and body position
Term
Gestalt
Definition
the experience that comes from organizing bits and pieces of information into meaningful wholes
Term
subliminal messages
Definition
brief auditory or visual messages that are presented below the absolute threshold
Term
motion parallax
Definition
the apparent movement of stationary objects relative to one another that occurs when the observer changes position
Term
constancy
Definition
the tendency to perceive certain objects in the same way regardless of changing angle, distance, or lighting
Term
illusions
Definition
perceptions tht misrepresent physical stimuli
Term
extrasensory perception
Definition
an ability to gain information by some means other than the ordinary senses
Supporting users have an ad free experience!