Motor asymmetries in preterm infants: Effects of prematurity and illness

Lewis, Michael

doi:10.1002/dev.420150105

Cited by 25 publications

(15 citation statements)

References 10 publications

(16 reference statements)

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“…During the maintenance of a lateralized head position, the contralateral sternocleidomastoid muscle is much more active than its ipsilateral homologue, a difference which was not found for the trapezius muscle (Bakker & Prechtl, 1980). A higher susceptibility to risk factors for assumption as opposed to maintenance was reported previously in a study on preterm infants before term age by Fox and Lewis (1982). They found more left-sided turns in infants with IRDS.…”

Section: Discussionmentioning

confidence: 48%

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The development of head position preference in preterm infants beyond term age

Geerdink

Hopkins

Hoeksma

1994

Developmental Psychobiology

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Healthy full-term infants show a developmental trend in head position from an initial right-sided preference to one with the head in midline around the age of 12 weeks. We studied the effects of intrauterine growth retardation (IUGR) and the degree of prematurity on both aspects of development from 35 weeks postmenstrual age to 18 weeks corrected age in 35 preterm infants without overt neurological abnormalities and whose gestational ages ranged from 27 to 34 weeks. Our data reveal that, during the preterm period, infants born after pregnancies of 32 weeks or less showed a lack of right-sided preferences for head turning after release from midline but not for the subsequent maintenance of a position. IUGR did not seem to affect either preference. After term age a right-sided preference diminished while a head midline position increased. The latter was not significantly delayed in relation to birth before 32 weeks gestation or IUGR. However, when infants were classified on the basis of neurological differences as reflected in a (mildly) abnormal movement quality, a delay in the attainment of a midline posture was observed, which suggests it is related to a suboptimal neurological condition. This delay, however, was also accounted for by the side-to-side flattening of the skull.

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Section: Discussionmentioning

confidence: 48%

“…Previously, Fox and Lewis (1982) demonstrated that preterm birth did not adversely affect the maintenance of a lateral head position. They observed a consistent rightsided preference at 34 weeks postmenstrual age (PMA).…”

Section: Introductionmentioning

confidence: 98%

The development of head position preference in preterm infants beyond term age

Geerdink

Hopkins

Hoeksma

1994

Developmental Psychobiology

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“…Nor has the disorganization hypothesis beensupported consistently in direct comparisons of healthy and at-risk newborns. For example, Fox and Lewis (1982) studied healthy full-term infants, healthy preterm infants, and premature infants who had perinatal medical complications and did not find the percentage of head-left position to be higher in the at-risk group.…”

mentioning

confidence: 99%

Spontaneous head positions in infants during the first 9 postnatal months

Barnes

Cornwell

Fitzgerald

et al. 1985

Infant Ment. Health J.

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The developmental organization of spontaneous head positioning over the first 9 postnatal months of life was investigated in a study of 35 infants. Head positions assumed by infants while at rest were recorded at 11 observation period: at 1 week, 2 weeks, 4 weeks of age, and every 4 weeks thereafter until the infant was 36 weeks old. Results indicated an overall tendency toward a head‐right position, which was strongest during the neonatal period, but declined with age. The head‐right position bias was qualified by familial handedness.

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“…Fox and Lewis (1982) found that preterm infants who had undergone respiratory distress syndrome did not exhibit a right turning bias. Lewkowicz, Gardner, and Turkewitz (1979) also found that the right turning bias was affected by preterm birth.…”

mentioning

confidence: 99%

The relationship of perinatal birth status to handedness: A prospective study

Fox

1985

Infant Ment. Health J.

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As part of a longitudinal study of the consequences of high risk birth, 66 infants born to right‐handed parents were given two unimanual tasks at 24 months of age to assess their hand preference. The 66 infants had been assigned to one of four diagnostic categories at birth: Premature with no postnatal medical complications; premature and having experienced respiratory distress; term and having experienced birth asphyxia during labor and delivery; term with normal delivery and postnatal course. Results of the handedness tasks revealed an increased incidence of use of the left hand among the term infants who underwent birth asphyxia and among the healthy preterm infants. The data indicate that timing of birth stress may play an important role in the ontogeny of pathological left‐handedness.

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Motor asymmetries in preterm infants: Effects of prematurity and illness

Cited by 25 publications

References 10 publications

The development of head position preference in preterm infants beyond term age

The development of head position preference in preterm infants beyond term age

Spontaneous head positions in infants during the first 9 postnatal months

The relationship of perinatal birth status to handedness: A prospective study

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