Naming and categorization in young children: II. Listener behavior training

Area of Science:

• Developmental Psychology
• Behavioral Psychology
• Linguistics

Background:

• Early language acquisition involves both understanding (listener behavior) and producing (speaker behavior) words.
• Children's ability to categorize objects and concepts is fundamental to cognitive development.
• Arbitrary stimulus classes, where stimuli have no inherent relationship to their names, pose a unique learning challenge.

Purpose of the Study:

• To investigate whether listener behavior can be acquired independently of speaker behavior in young children.
• To determine if listener behavior alone is sufficient for establishing arbitrary stimulus classes.
• To explore the role of naming in the categorization of arbitrary stimuli.

Main Methods:

• Pretraining with everyday objects followed by listener training with arbitrary shape stimuli paired with novel spoken words (/zog/, /vek/).
• Assessment using category match-to-sample tests (look-at-sample and tact-sample).
• Subsequent tact training and re-testing for children who failed initial categorization.

Main Results:

• Children could learn listener behavior without corresponding speaker behavior.
• Listener behavior was not sufficient for establishing arbitrary stimulus classes.
• Some children required tact training to successfully categorize stimuli, particularly in tact-sample tests.

Conclusions:

• Acquiring listener behavior does not automatically lead to the ability to categorize arbitrary stimuli.
• Naming, or speaker behavior, appears to be a necessary component for young children to form arbitrary stimulus classes.
• These findings support the hypothesis that naming plays a critical role in categorization development.