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Biomedical subjects

F Goodkin

Publications and source records attributed to F Goodkin.

4 recordsLinked to original sources
PubMed1981

Changes in nutritive sucking during a feed in two-day-and thirty-day-old infants.

Twenty-four infants were given a standard formula at 2 days and 1 month of life. The amount consumed, the feeding time, and the sucking amplitude were examined in 1-min trials. The data indicate that while the volume of intake did not change the feeding time decreased over the first month. Moreover, while sucking time and amplitude were independent of each other at the initiation of a feed at two days, they were correlated when the feed began at 30 days of age. It is, therefore, concluded that nutritive sucking efficiency changes and improves in the first month of life. Finally, a comparative analysis of the bottle feeding data from this study and data from two other published studies on breast feeding suggest the emergence of a regulatory mechanism that modulates the pattern of intake.

Age Factors↗
PubMed1980

The development of mature patterns of head-eye coordination in the human infant.

Four experiments examined the initiation of coordinated head and eye movement and the vestibulo-ocular reflex (VOR). Experiment 1 examined the initiation of head and eye movement to stationary, peripheral, visual targets. In adults we would expect to see an eye movement followed by a head movement. The VOR would maintain field-holding while the head rotated. Three-month-olds produced the same pattern of coordinated movement as seen in adults, 2-mth-olds produced only eye movements, i.e., no apparent head movement. Experiment 2 examined the gain of the VOR in darkness in 2- and 3-mth-olds and an adult. The VOR at all ages was qualitatively and quantitatively the same. Experiment 3 examined the gain of the VOR during visual fixation. The gain in 3-mth-olds shoed a significant increase as compared to gain in darkness. The same increment was seen in the adult. Two-month-olds showed no facilitation of gain. Experiment 4 examined tonic suppression of the VOR during visual fixation. While total suppression was seen in adult and the 3-mth-olds, no suppression was apparent in 2-mth-olds. Overall, the data indicate the communication between the visual, vestibular, head movement, and eye movement systems shows a marked shift between the second and third month of life.

Adult↗