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The Body as Evidence for the Nature of Language
1Sign Language Research Laboratory, University of Haifa, Haifa, Israel.
Frontiers in Psychology
|November 24, 2018
Summary
Body actions in sign language reveal language
Area of Science:
- Linguistics
- Anthropology
- Evolutionary Biology
Background:
- Compositionality is a fundamental property of language.
- Sign languages offer insights into language structure and emergence.
- Non-linguistic communication also exhibits compositional features.
Purpose of the Study:
- To explore how body actions in sign language reflect linguistic components.
- To investigate the role of compositionality in language emergence.
- To understand the evolutionary origins of compositional communication.
Main Methods:
- Analysis of body actions (hands, face, head, torso) in sign languages.
- Examination of emerging sign languages to track complexity.
- Comparison with compositional communication in non-linguistic contexts (e.g., emotional displays).
Main Results:
- Body actions in sign language directly map to linguistic components.
- Emerging sign languages demonstrate gradual increases in complexity and efficiency.
- Compositional communication exists in non-linguistic emotional displays, suggesting ancient origins.
Conclusions:
- Body actions are crucial for understanding language properties and emergence.
- Compositionality in communication predates spoken and signed languages.
- Visible body actions are key to studying the origins of language.
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