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Area of Science:

• Linguistics
• Anthropology
• Sociolinguistics

Background:

• Zinacantec Family Homesign (Z) is a novel sign language that developed organically within a single family over 30 years.
• The community is in a remote Mayan Indian village, and the initial signers had no contact with other deaf individuals or established sign languages.

Purpose of the Study:

• To investigate the spontaneous emergence and grammaticalization process of Zinacantec Family Homesign.
• To analyze the pathway from simple gestures to a structured sign language within a unique linguistic environment.

Main Methods:

• Observational study of a single family's sign language development.
• Analysis of gesture adoption, stylization, grammatical regimentation, and pragmatic generalization.
• Linguistic documentation of early-stage sign language formation.

Main Results:

• A Tzotzil cospeech gesture meaning "come!" was adopted into Z.
• This gesture was stylized into an attention-getting sign.
• The sign underwent grammatical regimentation and pragmatic generalization, functioning as a turn-taking or speaker-change marker.

Conclusions:

• Zinacantec Family Homesign provides a unique case study for understanding language emergence.
• The observed grammaticalization path offers insights into how new languages can form from basic gestures.
• The study highlights the adaptability of human communication and the potential for novel linguistic structures to arise in isolated communities.