Chapter 6 Flashcards
Sensation
information is detected by sensory receptors and transmitted to the brain: starting point of perception
Perception
the interpretation of sensory input
Constructivists
create understandings from experience (nurture)
Nativists
innate capabilities and maturational programs are driving forces in perceptual development
Habituation
form of learning that involves learning not to respond to a repeated stimulus: being bored by the familiar
Visual acuity
the ability to perceive detail in a visual stimulus
Visual accommodation
the ability of the lens of the eye to change shape to bring objects at different distances into focus
Contour
the amount of light-dark transition or boundary area in a visual stimulus
Size constancy
the tendency to perceive an object as the same size despite changes in its distance from the eyes
visual cliff
an elevated glass platform that creates an illusion of depth and is used to test depth perception of infants
Intuitive theories
organized systems of knowledge, believed to be innate, that allow children to make sense of the world in areas such as physics
Cochlear implant
a surgically implanted amplification device that stimulates the auditory nerve to provide hearing to the deaf
Phonemes
one basic unit of sound used in a spoken language
Olfaction
the sense of smell
Cross-modal perception
ability to use one sensory modality to identify a stimulus or a pattern of stimuli already familiar through another modality
Sensitive periods
period of life which a person is susceptible to the effects of experience or high level of plasticity
Cataracts
a pathological condition of the eye involving opacification (clouding) of the lens
attention
focusing perception and cognition on something in particular
Orienting system
reacts to events in the environment: maintains attention in events
Selective attention
concentrating on one thing and ignoring something else
Attention Deficit Hyperactivity Disorder (ADHD)
disorder that has attention difficulties, impulsive behavior, overactive or fidgety
Tinnitus
exposure to high noise levels that involves ringing sounds in one or both ears and last for days or weeks or indefinitely
Umami
a taste sensation that roughly equates to brothy or savory
Sensory threshold
the point of which low levels of stimulation can be detected