neurochronaxic theory

neu·ro·chro·nax·ic the·o·ry

theory stating that variations in the frequency of the human voice are produced by changes in the rate of contractions of the laryngeal muscles; no longer believed to be true.
References in periodicals archive ?
I found that several "Key Terms" listed at the beginning of the chapters (neurochronaxic theory, destructive interference), while present in the glossary, are absent from the index.