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Maternal smoking during pregnancy affects children's vigilance performance
E A Kristjansson1, P A Fried, B Watkinson
1Department of Psychology, Carleton University, Ottawa, Ontario, Canada.
Insights
Prenatal cigarette exposure in children aged 4-7 years is linked to increased activity and attention errors. These attention deficits may stem from impulsive behavior and heightened overall activity levels.
Area of Science:
- Developmental Psychology
- Neuroscience
- Public Health
Background:
- Prenatal exposure to environmental toxins, such as cigarette smoke, can impact child development.
- Attentional behavior is crucial for academic and social success in early childhood.
Purpose of the Study:
- To investigate the relationship between prenatal cigarette exposure and attentional behavior in young children.
- To identify specific attention-related deficits associated with maternal smoking during pregnancy.
Main Methods:
- Utilized auditory and visual vigilance tasks to assess attentional behavior in 76-79 children aged 4-7 years.
- Employed multiple regression analyses to examine the association between prenatal smoking and attention, controlling for confounding factors like postnatal smoke exposure.
Main Results:
- Prenatal cigarette exposure was significantly associated with increased child activity levels during attention tasks.
- Children exposed prenatally to cigarettes made more commission errors on auditory vigilance tasks and, to a lesser extent, visual tasks.
- After controlling for confounders, the link between prenatal smoking and omission errors was not significant.
Conclusions:
- Prenatal cigarette exposure may lead to attentional deficits characterized by impulsivity and hyperactivity in young children.
- These findings highlight the lasting neurodevelopmental impact of maternal smoking during pregnancy.
- Early identification and intervention for children with attention difficulties potentially linked to prenatal smoke exposure are warranted.
Abstract:
Aspects of attentional behaviour in 4--7-year-olds, as assessed by auditory and visual vigilance tasks, were related to prenatal exposure to cigarettes. Data on 76--79 children born to healthy, white, predominantly middle-class women were analyzed using multiple regression techniques controlling for potentially confounding variables including postnatal second hand smoke exposure. Cigarette smoking during pregnancy was related to an increased activity level of the children during the tasks and increased errors of commission in the auditory task and, to a lesser degree, in the visual task. After controlling for confounding factors, the relationship between prenatal smoking and errors of omission did not retain significance. The combination of results suggest that the deficits in attention may reflect impulsive responding and increased overall activity.