Mothers Do Not Drive the Development of Adult Homesign Systems: Evidence from Comprehension

<p>Studying the communication systems that arise in spontaneously occurring cases of degraded linguistic input can help clarify human predispositions for language. Some deaf individuals born into hearing families, who do not receive conventional linguistic input, develop gestures, called “homesign,” to communicate. We examined homesign systems used by four deaf Nicaraguan adults (ages 15-27), and evaluated whether homesigners’ hearing mothers are potential sources for these systems. Study One measured mothers’ comprehension of descriptions of events (e.g., “A man taps a woman”) produced in homesign and spoken Spanish. Mothers comprehended spoken Spanish descriptions (produced by one of their hearing children) better than they comprehended homesign descriptions, suggesting that each mother shares spoken Spanish with her hearing child to a greater degree than she shares homesign with her deaf child. Study Two randomly matched each mother with a Deaf native user of American Sign Language (ASL) and compared their comprehension of the same homesign descriptions. ASL Signers performed better than mothers, confirming that homesign productions contain comprehensible information, to which mothers are not fully sensitive. Taken together, these results suggest that mothers are not the source of their deaf child’s homesign system.</p>

Name thesis:degree_name

Master of Arts

Discipline thesis:degree_discipline

Psychology

Year dc:date.available

2012

Author dc:creator

• Carrigan, Emily

Contributors dc:contributor

• Letitia Naigles; Diane Lillo-Martin
• Marie Coppola

• Keywords: Language acquisition; homesign; deafness; language creation; gesture; sign language; Nicaragua

Repository record dc:identifier

https://digitalcommons.lib.uconn.edu/gs_theses/265

OAI identifier oai:identifier

oai:digitalcommons.lib.uconn.edu:gs_theses-1314