Neurolinguistic basics of sign language

Sošić, Viktorija. (2018). Neurolinguistic basics of sign language. Diploma Thesis. Filozofski fakultet u Zagrebu, Department of Phonetics. [mentor Mildner, Vesna and Milković, Marina].

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Abstract

Neurolinguistic basics of sign language is a scientific review of relevant neurolinguistic studies which studied brain areas responsible for perception and understanding of sign language and their cerebral lateralization from 1976 to 2016, which deal with brain parts responsible for perception and understanding of the sign language and their cerebral lateralization. Advancement of technology, especially in the field of neurolinguistic, enabled creation of a more visual representation of the brain, and its functions in the processing of language information. Earlier studies only partially showed clues of lateralization of sign language, compared to speech. Studies that analyzed the structure of sign languages, created a more detailed depiction of their complexity and the influence of language modality on language production. More recent neurolinguistic studies have shown that certain parts of the brain are predetermined for the processing of language information, regardless of language modality. Data suggests that brain differentiates between function, rather than form. The left hemisphere of the brain is dominant for language, and this symmetry suggests that perceptual mechanisms and motor systems do not determine nor influence organization of the brain, necessary for language execution. Considering the conclusions of neurolinguistic studies, author suggests use of sign language (primary) aided with written form of spoken language (secondary) for communication, education and rehabilitation of hearing impaired people.

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