Special Techniques In Testing The Hearing Of Children

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Abstract
Hearing tests for infants and young children must be reasonably accurate, descriptively significant and useful. Most technics for children do not present this kind of information except in a very limited way. Since 1947, experiments have been under way to develop "ascending" technics in audiometry together with the Fere effect and a modified form of Pavlovian conditioning. A fairly short burst of a test-tone is followed in about 3 seconds by a mild faradic shock from an Inductorium. About 8 to 12 of the combined signals are necessary to set up a conditioned-reflex arc. The shock annoys but does not hurt. Over 650 tests have been done on preschool-age children with skin-resistance responses from infants as young as 3 weeks. Retest data on some of this material show a rather high degree of reliability, although there is a large spread in individual cases.

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