34. Lisa is four years old and sleeps with her teddy bear every night. At a carnival, Lisa's father offers to win her a prize. He asks, 'Wouldn't you like that teddy bear?' Lisa frowns and says, 'But that's not teddy bear. Teddy bear is at home.' Lisa's misunderstanding is an example of which of the following?
Answer: A
Lisa's misunderstanding is an example of underextension.
Underextension occurs when a word is applied too narrowly, such as when Lisa believes that only her specific teddy bear qualifies as a teddy bear, excluding other similar toys. This demonstrates her limited understanding of the category of teddy bears.
A) Underextension
Underextension is the correct choice because Lisa is applying the term "teddy bear" only to her own bear and not to other teddy bears, indicating a restricted use of the term. This reflects her developmental stage where she has not yet generalized the term to include all teddy bears.
B) Overextension
Overextension would involve Lisa applying the term "teddy bear" to other toys or objects that are not teddy bears. Since she specifically denies that the carnival prize is a teddy bear and insists on her own, this option does not accurately reflect her misunderstanding.
C) Fast mapping
Fast mapping refers to the rapid process by which children learn new words by connecting them to their meanings after only a brief encounter. This situation does not illustrate fast mapping, as Lisa's misunderstanding is not related to learning a new word but rather to her specific interpretation of an existing one.
D) Overregularization
Overregularization involves applying grammatical rules too broadly, such as saying "goed" instead of "went." This concept does not apply here, as Lisa's issue is not with grammar but with the categorization of her teddy bear.
E) Holographic speech
Holographic speech is a single-word utterance that conveys a whole idea, typical in early language development. While Lisa is communicating her thoughts, her situation does not exemplify holographic speech since she is expressing a clear thought rather than using a single word.
Conclusion
In summary, underextension accurately describes Lisa's specific interpretation of "teddy bear," as she restricts the term to her own toy rather than recognizing other teddy bears. All other options fail to capture the nature of her misunderstanding, as they pertain to different aspects of language development or misapplication of terms.