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A Hearing Test Applicable to the Crying Newborn Infant: Preliminary Report *
Author(s) -
O'Doherty Neil
Publication year - 1968
Publication title -
developmental medicine and child neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.658
H-Index - 143
eISSN - 1469-8749
pISSN - 0012-1622
DOI - 10.1111/j.1469-8749.1968.tb02902.x
Subject(s) - crying , decibel , audiology , psychology , infant crying , medicine , psychiatry
SUMMARY Hearing tests were made on newborn infants who were crying spontaneously shortly before a feed was due, by vocalisation by the examiner at about 20 cm. distance from the baby's ear. Sound level was about 50 decibels and spectographic analysis showed that the main frequency was about 100c./sec. A quieting response was produced in the majority of infants and was graded into five categories according to the degree of response. If the response is one of attention mediated at cortical level, it may be important in predicting the ultimate cerebral status of the neonate.