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Asymmetry In Two-point Discrimination On The Tongues Of Adults And Children.
Published 1975 · Psychology, Medicine
Previous studies have shown that some adults have better discrimination for two-point perception on one side of the tongue than on the other. This has been referred to as asymmetry in lingual two-point discrimination. No data are available regarding lingual asymmetries in children. As perceptual differences frequently occur between children and adults, lingual two-point discrimination was measured in children and in adults. Whereas all children showed symmetrical patterns of lingual two-point discrimination, 8 of 15 adults showed asymmetrical patterns. Differences between adults and children appear to be related to the development of the central nervous system rather than to the change in peripheral sensory mechanisms.