Measurement of lingual vibrotactile sensitivity using one-trial and three-trial threshold criteria

Abstract

Ascending lingual vibrotactile thresholds were obtained from the anterior midline of the tongue for 110 normal speaking adult Ss at 200 and 400 Hz. Two threshold criteria, one test trial and the median of three successive trials, were used at each frequency . The t test comparisons between testing modes showed no significant differences. Correlations between testing modes were high and suggested direct rank orderings of threshold values. These findings were discussed in terms of possible advantages of using the simpler procedure as a more practical approach for measuring oral tactile sensation with children.