Many existing assessment tools for patients in low awareness states involve language functioning capabilities. Information regarding the construction and validity of a new assessment tool that relies on music, called the Music Therapy Assessment Tool for Low Awareness States (i.e. MATLAS), is presented in this paper. A total of nine assessments, involving eight patients, were examined. Results from the investigation of scores from three tools: the MATLAS, the Sensory Modality Assessment and Rehabilitation Technique (SMART), and the Wessex Head Injury Matrix Main Scale (WHIM)), as administered by multidisciplinary staff, were analysed, and the MATLAS was found to have good validity with these measures. While limitations involved in this work prevent conclusions about the validity of the MATLAS being drawn, they support the need for further research, and indicate that MATLAS may be a valid tool to assist with multidisciplinary assessment of such patients.
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