Oral Vibrotactile Sensation: An Evaluation of Normal and Defective Speakers

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Abstract
This investigation was concerned with testing for threshold responses to oral and nonoral region vibrotactile stimulation between a group of normal-speaking adults and a group with “functional” articulation speech defects. The findings were interpreted to mean that there was a consistent difference between groups with respect to oral vibrotactile sensitivity, but not with respect to nonoral vibrotactile sensitivity. The speech-defective group demonstrated less sensitive oral vibrotactile thresholds than those obtained from the normal-speaking group.