Chapter 5, Chapter 6, Chapter 7, Chapter 8 Flashcards
The processing of basic information from the external world via receptors in the sense organs (eyes, ears, skins, etc.) and brain
Sensation
the process of organizing and interpreting sensory information
Perception
the sharpness and clarity of vision
Visual acuity
a method for studying visual attention in infants that involves showing infants two images simultaneously to see if the infants prefer one over the other
Preferential-looking technique
the ability to detect differences in light and dark areas in a visual pattern
the ability to detect differences in light and dark areas in a visual pattern Contrast sensitivity
light-sensitive neurons that are highly concentrated in the fovea (central region of the retina)
Cone cells
Infants like looking at high contrast patterns
True
visual behavior in which the viewer’s gaze shifts at the same rate and angle as a moving object
Smooth pursuit eye movements
the perception of objects as being of constant size, shape, color, etc. in spite of physical differences in the retinal image of the object
Perceptual constancy
the identification of separate objects in a visual array
Object segregation
a procedure used to study infant cognition in which infants are shown an event that should evoke surprise or interest if goes against something the infant knows
Violation-of-expectancy
a depth cue in which an object occludes increasingly more of the background, indicating that the object is approaching
Optical expansion
The difference between the retinal image of an object in each eye that results in two slightly different signals being sent to the brain
Binocular disparity
the process by which the visual cortex combines the differing neural signals caused by binocular disparity, resulting in the perception of depth
Stereopsis
the perceptual cues of depth (such as relative size and interposition) that can be perceived by one eye alone
Monocular depth cues
the perception of the spatial location of a sound source
Auditory localization
developmental changes in which experience fine-tunes the perceptual system
Perceptual narrowing
the combing of information from two or more sensory system
Intermodal perception
fixed patterns of action that occur in response to particular stimulation
Reflexes
turning of the head and opening of the mouth in the direction of a touch (happens when an infant is hungry)
Rooting
oral response when the roof of the mouth is stimulated
Sucking/Swallowing
when the head turns or is positioned to one side, the arms on that side of the body extends, while the arm and knee on the other side flex
Tonic Neck
throwing back the head and extending the arms, then rapidly drawing them in, in response to a loud, sound, or sudden movement
Moro
closing the fingers around an object that is pressed to the palm
Grasping