Relationship between expressive language ability and rhythm perception, pitch perception, vocal range and vocal midpoint among mentally retarded adults

Abstract: This study investigated the relationship between expressive language ability and rhythm perception, pitch perception, vocal range, and vocal midpoint for 28 mentally retarded adults. A standardized speech test determined language scores; a standardized music test assessed rhythm and pitch perception; and vocalization determined vocal range and midpoint. Multiple correlation and multiple linear regression analysis indicated a significant correlation between expressive language ability and rhythm perception. Further research with music tests more appropriate for mentally retarded adults was recommended.

Keyword(s): expressive-language, rhythmic-perception, pitch-perception, adults, developmental-disabilities, vocal-range.

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