The development of motor asymmetries in 1-month-old infants who were prenatally exposed to cocaine

Abstract

The development of motor asymmetries was assessed in 20 infants who were prenatally exposed to cocaine and 23 comparison infants. Asymmetries in stepping, grasping, and head orientation were assessed at 1 month of age. As expected based on the findings of previous research with high-risk infants, infants who were prenatally exposed to cocaine performed a grasping task with their right hand for significantly shorter durations than comparison infants and were less likely to show a dominant hand preference than comparison infants. Comparison infants were also more likely to display a side bias for head orientation and stepping than infants who were prenatally exposed to cocaine. These findings suggest that prenatal exposure to cocaine may alter the typical developmental trajectory of functional asymmetries and may have important implications for long-term developmental outcomes.

Left-handedness is statistically linked to lifetime experimentation with illicit drugs

“…Prenatal exposure to alcohol (Domellö f et al, 2009), nicotine (Bakan, 1991), or cocaine (Schuetze, Croff, & Das Eiden, 2003), possibly producing deviation in the establishment of hemispheric lateralisation, has been linked to an increased occurrence of non-right-handedness. Availability of alcohol or illicit drugs in the family increases the risk of alcohol or illicit drug use in offspring during adolescence (Biederman, Faraone, Monuteaux, & Feighner, 2000;Cranford, Zucker, Jester, Puttler, & Fitzgerald, 2010).…”

Análise do alcance manual de lactentes pré-termo com baixo e muito baixo peso

“…De acordo com Toledo e Tudella (2008) -ALGRA et. al., 1999;CORBETTA et al, 2006), Síndrome de Down (CADORET; BEUTER, 1994), agenesia do corpo caloso (SACCO et al, 2006) e exposição in útero a cocaína (LAGASSE et al, 1998;SCHUETZE et al, 2003;TRONICK et al, 2004 Esta última era sincronizada com as demais câmeras do sistema Qualysis. , ARIAS et.…”