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Related Experiment Videos

Food recognition by the elderly

S Schiffman

    Journal of Gerontology
    |September 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Elderly individuals show reduced ability to identify foods by taste and smell compared to young adults. This sensory decline in older adults impacts food discrimination and perception.

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    Area of Science:

    • Gerontology
    • Sensory Science
    • Food Science

    Background:

    • Age-related sensory decline can impact food perception and quality of life.
    • Understanding chemosensory changes in aging is crucial for dietary interventions.

    Purpose of the Study:

    • To compare the chemosensory identification abilities of young and elderly adults.
    • To investigate how aging affects the discrimination and perception of food flavors.

    Main Methods:

    • Blindfolded taste and smell tests were conducted on young college students and elderly subjects using unseasoned blended foods.
    • Multidimensional scaling was used to analyze adjective ratings of food perception.

    Main Results:

    • Elderly subjects demonstrated significantly lower accuracy in identifying foods compared to young subjects.

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  • Young subjects exhibited two-dimensional flavor discrimination, while elderly subjects showed only one dimension (hedonic aspect).
  • A higher proportion of elderly subjects reported diminished taste and smell intensity.

    • Conclusions:

    • Aging is associated with a significant decline in chemosensory identification and discrimination abilities.
    • Reduced sensory perception in the elderly may lead to decreased enjoyment of food and potential nutritional issues.