Vocal self-assessment, quality of life and assessment of vocal and instrumental sound perception in dysphonic subjects / Auto-avaliação vocal, qualidade de vida e avaliação da percepção de sons vocais e sons instrumentais de sujeitos disfonicos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

Voice perception has been actively debated by neuroscientists and is a challenge for researchers nowadays. This study compared the auditory voice-perception assessments of experienced speech therapists and patients (self-assessment). The influence of age, gender, professional voice use, clinical diagnosis and evaluation by different professionals were also determined. A correlation between vocal assessment performed by the speech-therapist and self-assessment performed by the dysphonic subject was carried out through the VRQOL protocol. The study also observed the ability to perceive pitch variation in vocal and instrumental sounds. A comparison was made between the perceptive ability of subjects with functional dysphonia, subjects with normal voice and singers. A correlation between perceptive ability and gender, age, educational level, previous singing experience, perceptive vocal quality assessed by speech-therapists and self-perception of vocal quality. The study considered two groups. Group I: 245 subjects with voice-perception assessment carried out by the speech-therapist, patients self-assessment and results obtained from the V-RQOL protocol. Group II: 242 subjects evaluated for their perception of pitch variation for vocal sounds that was a sustained /a/ performed by female and male voices and perception of pitch variation for instrumental sounds performed by a virtual keyboard. Group I: levels of agreement between the speech-therapist vocal assessment and patients self-assessment were low and were not influenced by the age, gender, professional voice use, clinical diagnosis and evaluation by different professionals. The V-RQOL protocol was sensitive both to vocal quality as assessed by the speech-therapist and the dysphonic patient. Group II: singers showed better ability in perceiving vocal and instrumental sounds, dysphonic subjects had more difficulty in perceiving pitch variation for vocal and instrumental sounds than subjects with normal voices. Age and gender did not influence perception ability. Subjects with higher educational levels and previous singing experience had better perceptive ability. In the dysphonic group the worse the voice quality the worse the perception.

ASSUNTO(S)

voice voz quality of life qualidade de vida

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