Language Perception in Infants Flashcards
what is categorical perception?
a phenomenon indicating that certain stimuli (especially speech) are perceived categorically rather than continuously despite a continuous variation in their form
findings of categorical perception in infants?
Infants perceive differences in speech sound categorically
infants perceptions in non-native languages?
▪ Youngest infants (e.g., 6-8 months) respond to contrasts in many languages
▪ Response to distinctions in non-native language declines 8-10 months
▪ & is very poor 10-12 months
conclusion for categorical perception in infants?
◦ Infants seem to come to the world with some ability that allows them to categorize speech sounds
◦ By ~ 8 months, infants attention starts to focus more on sounds of their native language
what is prosody?
rhythm of speech such as patterns of intonation, syllable stress, & rate of production
prosodic boot strapping hypothesis?
prosody can be used as cues to segmentation
what do infants respond to in terms of speech?
patterns of rhythm
increasing knowledge of sound combinations in infants produces?
◦ Statistical probabilities (distributional information) – keep track of sounds that go together
◦ Rule learning
how do children figure out what a word means?
- cognitive constraints (for learning objects)
- adult naming processes
- cooperative nature of communication
- syntactic bootstrapping
biases for children when figuring out what a word means?
- whole object bias: When an adult points to an object and says a word, a child assumes this word labels the entire object
- taxonomic bias: when child groups objects together based on shared characteristics
- mutual exclusivity bias: a bias to interpret a new word so that it has no referents in common with familiar words.
what are adult naming practices?
◦ Adults tend to point out & label whole objects
◦ Adults tend to select basic-level terms
what is the syntactic bootstrapping hypothesis?
Children use syntax to learn verbs
- begins with a universal bias to map each noun phrase in a sentence onto a participant role in a structured conceptual representation of an event.
what is shared book reading?
an adult reads a book to an individual child or to a group of children and uses one or more planned or structured interactive techniques to actively engage the children in the text
what is shared book reading commonly associated with?
◦ increased vocabulary in children
◦ and with greater success in learning to read and later literacy