from Part II - Brain development, cognition, and education
Published online by Cambridge University Press: 22 September 2009
Overview
Two significant scientific contributions, brain images and gene sequences, are helping scientists and educators to understand individual differences in the acquisition of cognitive and emotional skills. Research on brain mechanisms of attention in children and adults shows three independent neuronal networks for alerting, orienting, and executive control in conflict resolution. The authors' attention network test evaluates the efficiency of each of these three systems and reveals clear individual differences, which relate to evaluations of children's ability to regulate their own behavior. Among factors affecting this capacity for regulation are two genes related to the neurotransmitter dopamine, which relate to both performance and activation of a node of the attention network in the anterior cingulate. From early childhood, effortful control of attention plays a role not only in learning but also in socialization and empathy. Understanding attention regulation and its relation to learning will clearly be informative to teachers and parents.
The Editors
Two major developments have greatly altered the prospects for making a connection between common networks of the human brain and theories of how people differ. First, with the development of neuroimaging, we could glimpse inside the human brain as people think (Posner & Raichle, 1994). When combined with electrical or magnetic recording from outside the skull, it was possible to see in real time the circuits involved in computing aspects of a task.
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