Development
acuity - correct answer-sharpness of vision
first month is 20/400
infants can differentiate facial features at 20 inches
~20/30 by 5 yrs old, 20/20 by 10
auditory perception - correct answer-Involves perception of
•location
•differences in similar sounds
•patterns
•auditory figure and ground
Auditory-Kinesthetic Intermodal Perception - correct answer-Perception improves in
childhood --> knowledge of object names is relevant)
auditory-visual intermodal perception - correct answer-newborns turn toward a sound and
demonstrate a basic level of integration early in the first year
awareness of self - correct answer-spatial dimensions: 1. up and down, 2. front and back, 3.
side to side
children improve in identifying body parts
objective awareness of self - second year
scale errors common up to 30 months
development of object perception - correct answer--Infants may use depth and motion more
than edges
-Children refine figure and ground and whole and part perception, especially under difficult
conditions
-Preadolescents reach adult levels
Development of Shape and Orientation Perception - correct answer-Newborns are sensitive
to object shape
Newborns perceive faces
Children refine their ability to detect subtle changes in object orientation
figure and ground - correct answer-the organization of the visual field into objects (the
figures) that stand out from their surroundings (the ground).
hearing - correct answer-the vibration of sound waves on the eardrums and the firing of
electrochemical impulses in the brain
involves external ear, middle ear, cochlea of inner ear