Wednesday, February 10, 2021

Electrogustometry: normative data for stimulus duration, tongue site and age decline

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Abstract

Objectives

Our primary goal was to evaluate the effect of stimulus‐duration on electrogustometry (EGM) thresholds. Additionally, we sought to evaluate any sex‐related influences and compare the above results to those of taste strips.

Design

EGM‐ thresholds of various stimulus durations (0.5, 1.0, 1.5, and 2.0 s) were measured in 212 non‐smokers (age range: 10 – 80 years, divided into eight age groups) without self‐reported gustatory impairment. Furthermore, taste strips chemogustometry measurements in 132 participants were performed.

Setting

Tertiary referral medical centre.

Participants

212 non‐smokers, divided in eight age‐groups participated in the study.

Main outcome measures

EGM‐thresholds and taste strips, duration of EGM‐stimuli

Results

EGM‐thresholds increased progressively with age and with stimulus duration from 0.5 to 2 seconds. This pattern was consistent in all six anatomic areas, irrespective of sex. In contrast, when using chemogustometry, no age‐ or sex‐related differences were observed.

Conclusions

EGM threshold values increase progressively with age and with stimulus duration. Therefore, we recommend documenting stimulus duration in future EGM recordings as it may significantly affect EGM amplitude threshold values.

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