EXAMINATION of the sense of taste should be considered an indispensable part of the cranial nerve diagnostics. Nevertheless, taste examinations play only a minor role in the otoneurological diagnostics. Undoubtedly this is due to methodological difficulties. Börnstein1 recommends the use of a number of taste solutions, but his method is semiquantitative and requires great care in order to keep the fluid within the area to be examined. From this department Krarup2,3 published a number of investigations on electrogustometry. This method allows an exact graduation of the stimulus and represents a definite improvement. On the other hand the use of an electric stimulus raises several technical, clinical, and theoretical problems.
Krarup recommends galvanic stimulation with a flat, circular steel electrode with a diameter of 5 mm. It is applied to the edge of the tongue 1½ cm from the midline for a period of 1½ seconds. The threshold is
FONS M, OSTERHAMMEL PA. Electrogustometry. Arch Otolaryngol. 1966;83(6):538–542. doi:https://doi.org/10.1001/archotol.1966.00760020540008
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