Reactivity and regulation of motor responses in cocaine-exposed infants.

ABSTRACT:

Unlabelled

Effects of prenatal exposure to cocaine on the reactivity and regulation of the motor system of 825 four-month-old infants enrolled in the Maternal Lifestyle Study were examined. Videotaped assessments of 338 cocaine-exposed (CE) infants and 487 non-exposed comparison infants were coded by examiners masked to exposure status. Exposure status was determined by meconium assay and maternal self-report of prenatal cocaine use. Infants were presented with a series of 17 visual, auditory and tactile stimuli for 30-s each. Intensity and latency of limb movement responses on a subset of items were analyzed to test the following hypotheses: CE infants are more active in general; CE infants exhibit increased movement levels for a larger proportion of time in response to stimulatio

SUBMITTER: Fallone MD 

PROVIDER: S-EPMC4337232 | biostudies-literature | 2014 May-Jun

REPOSITORIES: biostudies-literature