9 Flashcards
Define Perception
Organising and interpreting sensory information from the external world by the sensory receptors in the sense organs and the brain
Define sensation
processing of information from the external world by the sensory receptors in the sense organs and the brain.
Perception forms the basis for (4)
Cognitive, emotional and social development, and interpretative skills
Infants can analyze and integrate separate elements of a visual display into…
Infants can analyze and integrate separate elements of a visual display into a coherent pattern.
Define Habituation:
How studied in infants:
The diminishing of an innate response to a frequently repeated stimulus
If the infant’s response increases when a novel stimulus is presented, the researcher infers that the baby can discriminate between the old and new stimuli.
showing infants two stimuli (objects, sounds etc.) at a time on two side-by-side screens to see if the infants have a preference for one over the other.
This is the xxx
Preferential-looking technique
Define visual acuity
what age fully developed?
Sharpness of visual discrimination
8months
How test visual acuity
compare how long baby looks at striped pattern vs plain grey square.
Define contrast sensitivity.
What age develops
the ability to detect differences in light and dark areas.
2-3 months
What age colour vision develops.
why delay?
2-3 months
Cones (light sensitive neurones in fovea) need to develop in size, shape and spacing
Define visual scanning
what age?
Visual scanning is the ability to use vision to search in a systematic manner, such as top to bottom and left to right.
Birth
Define eye tracking
what age
follow moving objects
2-3 months
How long does it take to show a preference for mothers face
12 hours of exposure
Face experiments - bias toward
configurations with more elements in upper half
define Perceptual constancy
the perception of objects as being of constant size, shape, color, etc., in spite of physical differences in the retinal image of the object.
define Object segregation
perception of separate objects in a visual display (color, shape, common texture, common movement…)