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Related Concept Videos

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Taste Buds and Receptors

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Related Experiment Video

Updated: Jun 19, 2026

Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
06:00

Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test

Published on: September 17, 2021

Decrease in stereognostic ability of the tongue with age.

S Kawagishi1, F Kou, K Yoshino

  • 1Department of Life Science, Science of Health Improvement, Kyushu Dental College, Kitakyushu 803-8580, Japan. kawagisi@kyu-dent.ac.jp

Journal of Oral Rehabilitation
|October 21, 2009
PubMed
Summary

Seniors have reduced tongue stereognosis, impacting eating and swallowing. Targeted training improved this sensory ability in older adults, suggesting potential for rehabilitation and enhanced quality of life.

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Last Updated: Jun 19, 2026

Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
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Published on: September 17, 2021

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue
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Published on: July 6, 2017

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Published on: February 21, 2020

Area of Science:

  • Oral sensory function
  • Swallowing and eating rehabilitation
  • Geriatric sensory perception

Background:

  • Oral sensory information, including food bolus size and shape, is crucial for eating and swallowing.
  • Restoring sensory function is vital for comprehensive rehabilitation and improving quality of life.

Purpose of the Study:

  • To compare tongue stereognostic ability between young adults and seniors.
  • To investigate the potential for improving seniors' stereognostic ability through training.

Main Methods:

  • Assessed tongue stereognosis in 269 young adults and 60 seniors using 20 differently shaped oral test pieces.
  • Analyzed misidentification patterns and conducted a training intervention with four elderly participants.

Main Results:

  • Young adults (mean correct: 16.5) significantly outperformed seniors (mean correct: 10.1) in identifying shapes (P < 0.001).
  • Seniors' errors involved selecting shapes from different categories, unlike young adults who stayed within categories.
  • Training significantly improved stereognostic accuracy in seniors (P < 0.05).

Conclusions:

  • Older adults exhibit diminished tongue stereognostic ability compared to younger individuals.
  • Training interventions show promise for enhancing oral sensory function in seniors.
  • Restoring stereognosis may contribute to improved eating, swallowing, and overall quality of life in the elderly.