J Korean Dysphagia Soc.  2020 Jul;10(2):143-150. 10.34160/jkds.2020.10.2.001.

Characteristics of Oral Stereognosis

  • 1Department of Occupational Therapy, Kyung-Bok University, Pocheon, Korea
  • 2Department of Occupational Therapy, College of Health Science, Yonsei University, Wonju, Korea


Oral stereognosis is a function recognizing the characteristics, such as the size and shape, of objects in the mouth by integrating the senses with movement. As a child grows up, this function develops gradually but is reduced by aging and neurological damage, such as a stroke. In addition, it may affect the swallowing function in the oral phase of stroke patients with dysphagia. The shape and size of an intraoral bolus provide sensory information that is important for swallowing. Therefore, oral stereognosis is important for safety during eating and drinking. Oral stereognosis is designed for evaluation using two-dimensional or three-dimensional shapes of various sizes, and the accuracy or response rate is scored. On the other hand, there is no method of standardized examination. Accordingly, it is necessary to develop a new training method for promoting the recovery of the oral sensory function. The method should also aim to recover the oral stereognostic ability through a larger number of subjects and diseases in the future.


Dysphagia; Oral stereognosis; Cognitive function; Sensory feedback; Swallowing
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