Signing ASL with baby
Is there manual babbling in sign language? Yes. Does signed language function in the same left cerebral regions as spoken language? Yes. Is a signed language (e.g. ASL, Auslan, etc) a real human language? Yes. Does sign language have linguistics? Yes. Research studies in the fields from neuroscience to linguistics can confirm these.
"The human brain does not discriminate between the hands and the tongue. People discriminate, but not our biological human brain." -- Neuroscientist Dr. Laura Petitto, 2012.
Studies show evidence that language development is maturationally brain-controlled, regardless of modality (speech or signlan). That is, brain has no preference for language modality.
Studies show that acquiring a signed language from birth is on the same language developmental timeline as acquiring a spoken language.
Language acquisition: a case study
The documentary online "Baby Talk in ASL" follows a baby's language acquisition and literacy development in ASL (American Sign Language) week by week from her birth to her first birthday in a natural native-ASL environment and visual culture.
Observe the baby's development from eye contact and gazing behaviors to the emergence of finger pointing. Watch a language process from the babbling stage to the first ASL words week by week.
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