Developmental Psychology Flashcards
Developmental Psychology
the study of changes or continuities in an organism between initial conception and death
When do children’s perceptual experiences begin?
in utero
-can hear mother’s voice in last trimester
-speech is low pass filtered (can hear the rhythm but not the phonemes)
How do we know newborns could hear in utero?
They preferred their mother’s voice over another woman’s and their mother’s native language over another language
What three assumptions are infant methodologies based on?
- they will orient to stimuli they prefer or find interesting
- familiarization: they prefer to hear/see stimuli that they’ve heard/seen before
- habituation: if repeatedly exposed to a stimulus, then they should prefer the novel stimuli
High Amplitude Sucking Procedure (HASP)
insert a soother into the child’s mouth. Sucking on the soother control the stimulus. The dependent variable is the infant’s sucking response.
*sucking rate decreases as they are habituated
*changing the stimulus results in dishabituation
How can HASP be used? (2 ways)
- to see if infants can tell stimuli apart
- see what they prefer
Visual Acuity
ability to see things in adult range
When do infants reach visual acuity?
around 6 months
Describe a newborn’s vision
infants see well up close but have bad long distance vision (between 20/200 and 20/800)
Preferential Looking Paradigm
When shown 2 pictures (one on left, one on right), infants will look longer at interesting stimuli than uninteresting stimuli
*invented by Robert Franz
*can be used to test vision
In what way do children show preferences for faces?
By 3 months, they show preferences for their own race. This is based on exposure.
Cognitive Development
the development of thinking across the lifespan
Schema
an organized unit of knowledge that the child uses to try to understand a situation
*Piaget’s theory
Assimilation
new experiences are readily incorporated into child’s existing theory
Accommodation
when children makes a small change to the schema after a new experience