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Genetic Studies of Tone Deafness

NCT00006076 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 968

Last updated 2017-07-02

No results posted yet for this study

Summary

This study will examine the hereditary basis of tone deafness by identifying regions of the human genome linked to this condition. Both exceptionally good pitch recognition (perfect pitch) and exceptionally poor pitch recognition (tone deafness) run in families. A better understanding of what causes tone deafness may provide new insights into auditory (hearing) function.

Individuals with two or more family members 15 years of age or older who are tone deaf or have trouble recognizing different melodies may be eligible for this study. Candidates will be screened with a short listening test for pitch and a short written test. Those identified with poor pitch recognition will fill out a brief questionnaire about their family tree and family members (without identifying names) who have trouble recognizing melodies or tones. Individuals with poor pitch recognition will be asked to help contact family members who may be interested in participating.

Members of families with two or more first-degree relatives (parents, grandparents, siblings) who are tone deaf may enroll in the study. They will provide a blood sample (about 2 tablespoons) for genetic studies and may take a 20-minute hearing test using headphones.

Conditions

  • Healthy
  • Tone Deafness

Sponsors & Collaborators

  • National Institute on Deafness and Other Communication Disorders (NIDCD)

    lead NIH

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2000-07-26
Completion
2010-06-29

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00006076 on ClinicalTrials.gov