Related Experiment Videos
Human taste bud density across adult age groups
1Department of Anatomy, Bowman Gray School of Medicine, Wake Forest University, Winston-Salem, NC 27103.
Journal of Gerontology
|January 1, 1988
Summary
Human taste bud density varies greatly, by over 100-fold, across individuals, independent of age or sex. This significant variation in taste receptors may explain differences in taste perception and confound aging studies.
Area of Science:
- Sensory science
- Human anatomy
- Gerontology
Background:
- Subjective variability in taste perception is significant.
- Taste bud density, representing the number of taste receptors, is a potential factor influencing taste sensitivity.
- Previous research suggests a link between sensation and receptor count.
Purpose of the Study:
- To quantify taste bud density in human tongues.
- To investigate the distribution of taste bud density across different age groups and sexes.
- To explore the implications of taste bud density variability on taste perception and aging research.
Main Methods:
- Light microscopy was used to reconstruct two regions of 18 human cadaver tongues.
- Specimens were sourced from male and female cadavers across three age groups: young adults, middle-aged adults, and older adults.
Main Results:
- A wide range of taste bud density, exceeding 100-fold, was observed.
- Taste bud density distribution was found to be even across different age groups and sexes.
- Observed disparities were not linked to the health status of the cadavers prior to death.
Conclusions:
- Significant individual differences in human taste bud density exist, independent of age and sex.
- This variability may confound cross-sectional studies on aging and taste sensitivity.
- Further research is needed to determine if human taste bud density is stable over time.