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Updated: Jul 27, 2026

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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
Published on: September 27, 2024
The speaker as listener
Journal of the Experimental Analysis of Behavior
|May 1, 1989
Summary
Children
Area of Science:
- Child Psychology
- Behavioral Science
Background:
- Children's self-directed speech, or private verbal behavior, is crucial for cognitive development.
- Understanding how environmental stimuli influence this behavior is key to developmental research.
Purpose of the Study:
- To investigate the impact of toy type on young children's private verbal behavior.
- To compare verbal behavior units emitted during play with anthropomorphic versus nonanthropomorphic toys.
Main Methods:
- A multiple schedule design was employed with 4 five-year-old girls.
- Children's verbal behavior was observed under two conditions: anthropomorphic toys (3D figures) and nonanthropomorphic toys (2D materials).
- Verbal behavior units (mands, tacts, intraverbals, autoclitics, conversational units) were quantified.
Main Results:
- Significantly more total verbal behavior units were recorded in the anthropomorphic toy condition.
- Conversational units of verbal behavior were exclusively observed during the anthropomorphic toy condition.
- Children demonstrated both speaker and listener roles in their self-directed speech with anthropomorphic toys.
Conclusions:
- Anthropomorphic toys appear to foster more extensive and complex private verbal behavior in young children.
- The findings support Skinner's theories on verbal behavior, particularly the role of the environment in shaping speech.
- Toy design can significantly influence children's self-talk and cognitive engagement during play.

