Abstract
The electroacoustic vocal characteristics of 200 mentally retarded subjects were compared with those of 200 age- and sex-matched normal controls. The main results were: (1) mentally retarded subjects showed higher values of fundamental frequency which increased significantly as IQ decreased; (2) all groups showed an effect of age: the fundamental frequency decreased as age increased; (3) mentally retarded subjects showed a higher rate of various alterations such as biphonation, fundamental frequency shift and noise. These findings can be interpreted as the result of a neurophysiological immaturity in mentally retarded subjects.
| Original language | English |
|---|---|
| Pages (from-to) | 84-93 |
| Number of pages | 10 |
| Journal | Brain Dysfunction |
| Volume | 3 |
| Issue number | 1-2 |
| Publication status | Published - 1990 |
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ASJC Scopus subject areas
- Clinical Neurology
- Neuroscience(all)
Cite this
Biondi, S., Zappala, M., Amato, G., Consoli, F., & Ferri, R. (1990). Voice fundamental frequency in mentally retarded children. Brain Dysfunction, 3(1-2), 84-93.