인지기능을 반영할 수 있는 청력검사는 많지 않은데 순음청력역치는 IQ와 인지기능 검사의 점수와 상관 관계가 없음이 밝혀졌다.
Though there aren't many hearing tests that may reflect cognitive function, it had been found that the pure tone hearing threshold had no correlation with the scores of the IQ and cognitive function tests.