The Efficiency of Information transmission for sign and spoken language

Autor/a: RODRÍGUEZ ORTIZ, Isabel de los Reyes; MORA ROCHE, Joaquín
Año: 2008
Editorial: American Annals of the Deaf. Vol. 152, nº 5 (2008) p. 480-494
Tipo de código: DOI
Código: 10.1353/aad.2008.001
Soporte: Digital


Educación » Adquisición y desarrollo del lenguaje, Educación » Aspectos psicológicos y cognitivos


The study compares sign and oral language in terms of information transmission efficiency. The sample consisted of 36 hearing people with no knowledge of sign language and 36 deaf people reasonably fluent in sign language. (The deaf participants' level of hearing loss ranged from severe to profound.) Oral and sign language comprehension was assessed by means of texts at three different difficulty levels. After being exposed to the texts, the study participants had to tell what they had understood about them, answer a set of related questions, and offer a title for each text. When the hearing group's comprehension of oral versions of the texts was compared to the deaf group's comprehension of signed versions, the deaf group showed better comprehension of the explicit content of the texts but added more invented content and made more errors.