Written by Munisa Said (PSY, 2022) & Crystal Lee (PSY, G2)
Why is it so important for parents to read to their children? Previous research has found that when parents read to their infants (also called “shared reading”), there are significant improvements in early language development (Mol & Bus, 2011). However, not all children broadly benefit from shared reading. The advantages of shared reading vary quite widely among children. A recent paper led by researchers from Princeton and Rutgers Universities endeavored to explain this variability by considering genetic factors that may impact this development of language acquisition. In previous studies, individual differences in dopaminergic and serotonergic systems (the neural pathways that deliver dopamine and serotonin throughout the brain) have been implicated in different outcomes for learning, attention, and behavior. Thus, Jiminez et al. examined the genetic characteristics of these systems of almost 2,000 children in order to see if this variable also explained the diverse effects of shared reading.
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