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Related Experiment Videos

Speech acceptability and olfaction in laryngectomees.

R H Tatchell1, J W Lerman, J Watt

  • 1Department of Communication Disorders, Central Michigan University, Mount Pleasant 48859.

Journal of Communication Disorders
|February 1, 1989
PubMed
Summary

This study found no significant link between esophageal speech quality, smell function, and nasal airflow in individuals who have had a laryngectomy. These findings do not support previous research suggesting a connection between olfaction and speech in these patients.

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Area of Science:

  • Otolaryngology
  • Speech-Language Pathology
  • Sensory Science

Background:

  • Laryngectomy necessitates alternative speech methods, such as esophageal speech.
  • The relationship between olfaction, airflow, and speech quality after laryngectomy is not well understood.
  • Previous research suggested a correlation between olfactory sensitivity and esophageal speech proficiency.

Purpose of the Study:

  • To investigate the interrelationships between esophageal speech acceptability, olfactory abilities, and nasal airflow volume.
  • To test hypotheses regarding causal links between these factors in laryngectomees.
  • To evaluate findings against previous observations by Gilchrist (1973).

Main Methods:

  • A cohort of 25 laryngectomees was assessed.

Related Experiment Videos

  • Speech acceptability was measured using a standardized prose passage.
  • Olfactory function was evaluated through odor identification and threshold tests.
  • Nasal airflow volume was quantified in liters per minute.

    • Main Results:

    • No statistically significant path coefficients were found linking speech acceptability, olfaction, and airflow volume.
    • The null hypotheses for these relationships were not rejected.
    • The study's findings did not corroborate Gilchrist's observations on enhanced smell sensitivity in proficient esophageal speakers.

    Conclusions:

    • There is no significant association between esophageal speech acceptability, olfactory function, and nasal airflow volume in laryngectomees.
    • The results challenge previous notions of a direct relationship between smell sensitivity and speech outcomes post-laryngectomy.
    • Further research may be needed to explore potential indirect influences or alternative factors affecting speech production.