1-3 - Prelinguistic Development: Production Flashcards
What is the going hypothesis on learning and language development?
The infant has to know something about the language they are going to hear
How does Maturation affect language development?
The infant doesn’t need much more maturation to hear but need tons of maturation in order to speak
There are major changes to the vocal track during the first 6 months of life
What are two hypotheses on infant language perception?
Former: Infants are born with limited perceptual ability
Current: Infants are born with the ability to perceive more and possible all speech sounds
Why was it believed that infants are born with limited perceptual ability? When did our belief in this change?
Assumed because they didn’t do much of anything
People started asking questions in the 1960s
When this was seen as an empirical issue (we may actually be able to test this)
How did we learn that infants are born with the ability to perceive more and possibly all speech sounds?
Once we started testing infants empirically
What are three methods for studying infant language perception?
Sucking rate
Heart rate
Head turn
Which is the most common method for studying infant speech perception?
Sucking Rate
At what age is the Sucking Rate method used?
< 0;6
How does the Sucking Rate Method work?
Sucking is rewarded by increasing the audio stimulus
Increase in sucking -> more stimulus
Decrease in sucking -> less stimulus
At what age is the Heart Rate method used?
< 0;6
What are some issues with the Heart Rate method?
Didn’t work out so well because heart rate can change for so many reasons
You would need an enormous amount of infants to test in order to find consistency
At what age is the Head Turn method used?
0;6+
The Habituation Paradigm is a basic property of the _____.
Central nervous system (CNS)
What is habituation?
You start tuning out the stimulus
______ leads to habituation.
Repetition
What is dishabituation?
Tuning your attention to a stimulus
You get a new interesting stimulus
______ leads to dishabituation.
New stimuli
What did Eilers study? What did Eimas study?
Eilers = Spanish/English bilabial stops
Eimas = English bilabial stops
Who did Eimas et al study?
26 infants at 0;1
26 infants at 0;4
When was Eimas et al’s big year?
1971
What method did Eimas et al use?
Measured sucking rate
What stimuli did Eimas et al use?
/pa/
/ba/