title: Developing Attention: Behavioral and Brain Mechanisms.
abstract: Brain networks underlying attention are present even during infancy and are critical for the developing ability of children to control their emotions and thoughts. For adults, individual differences in the efficiency of attentional networks have been related to neuromodulators and to genetic variations. We have examined the development of attentional networks and child temperament in a longitudinal study from infancy (7 months) to middle childhood (7 years). Early temperamental differences among infants, including smiling and laughter and vocal reactivity, are related to self-regulation abilities at 7 years. However, genetic variations related to adult executive attention, while present in childhood, are poor predictors of later control, in part because individual genetic variationmay have many small effects and in part because their influence occurs in interaction with caregiver behavior and other environmental influences. While brain areas involved in attention are present during infancy, their connectivity changes and leads to improvement in control of behavior. It is also possible to influence control mechanisms through training later in life. The relation between maturation and learning may allow advances in our understanding of human brain development.
authors.affiliation: University of Oregon, Eugene, OR 97403, USA.
authors.forename: Michael I
authors.initials: MI
authors.lastname: Posner
authors.affiliation: University of Oregon, Eugene, OR 97403, USA.
authors.forename: Mary K
authors.initials: MK
authors.lastname: Rothbart
authors.affiliation: Illinois Wesleyan University, Bloomington, IL 61701, USA.
authors.forename: Brad E
authors.initials: BE
authors.lastname: Sheese
authors.affiliation: University of Oregon, Eugene, OR 97403, USA.
authors.forename: Pascale
authors.initials: P
authors.lastname: Voelker
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