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A Right-Ear Effect for Auditory Feedback Control of Children's Newly Acquired Phonemes

Linda J. Louko
Edmonton Public School Board, Alberta

Vincent S. DiSalvo
University of Nebraska, Lincoln

To determine the relative importance of binaural, right-ear, and left-ear auditory feedback control on the correct production of newly acquired articulatory patterns in children, 40 children exhibiting misarticulations were tested under four experimental conditions. The children were individually administered a shortened version of the Deep Test of Articulation (McDonald, 1964) under (1) a no-masking condition, followed in a counterbalanced order by readministration of the Deep Test under conditions of (2) binaural masking, (3) monaural right-ear masking, and (4) monaural left-ear masking. Correct articulatory production by the children was significantly reduced under binaural and monaural right-ear masking. There was, however, no significant reduction in the children's correct production under the condition of monaural left-ear masking. The results extend previous findings of right-ear superiority for children's auditory processing of externally produced stimuli to the closed-loop auditory feedback control of children's own speech production.