When the hearing sensitivity of children with subclinical congenital cytomegalovirus infection was evaluated and compared with that of a group of matched control subjects, nine of the 18 infected subjects were found to have some hearing loss, ranging from slight high-frequency impairments to a severe-to-profound unilateral loss. (MYS)

In this study of the visual placing response (an extension of the paws or arms on approach to a visual surface), infants extended their arms almost as much to a gray surface as to a patterned one. (Author/CS)

Subjects of this study were 19- and 23-week-old infants. Results showed that the older infants demonstrated differential attention to novel over familiar stimuli during recognition tests. An examination of their responsiveness during familiarization presentations indicated differing trends of looking activity. (Author/CS)

Differential fixation to novel stimuli was obtained from 4-month-old infants to test the discrepancy hypothesis, which predicts a curvilinear relationship between degree of discrepancy and attention. (ST)

Reported are case histories of three infants with congenital malformations (including defective formation of the nose and hands) associated with ingestion of oral anticoagulants during the first trimester of pregnancy. (CL)

An investigation of the nature of one, 2-year-old child's imitative competence in using the modal auxiliary system of English (using "will" and "can") during two periods two months apart. (ED)

Describes a study involving administration of a home environment inventory to a sample of 77 mothers and infants in order to explore its ability to predict later mental test performance. Correlations between home inventory data and measures of infant development over a period of 30 months were higher than those typically reported. (ED)

Studied were three unrelated infants with distal renal tubular acidosis (a condition characterized by an inability to acidify the urine to minimal pH levels resulting in the loss of bicarbonates). (DB)

Work performed pursuant to a contract with the U.S. Office of f Education.

Study supported in part by Research Grant MH-13703-01 from the National Institute of Mental Health.

Paper presented at the Annual Meeting of the American Association on Mental Deficiency (92nd, Boston, 1968).