Fractionating impulsivity: neuropsychiatric implications.
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Peer-reviewed
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Abstract
The ability to make decisions and act quickly without hesitation can be advantageous in many settings. However, when persistently expressed, impulsive decisions and actions are considered risky, maladaptive and symptomatic of such diverse brain disorders as attention-deficit hyperactivity disorder, drug addiction and affective disorders. Over the past decade, rapid progress has been made in the identification of discrete neural networks that underlie different forms of impulsivity - from impaired response inhibition and risky decision making to a profound intolerance of delayed rewards. Herein, we review what is currently known about the neural and psychological mechanisms of impulsivity, and discuss the relevance and application of these new insights to various neuropsychiatric disorders.
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1471-0048
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Wellcome Trust (093875/Z/10/Z)
Wellcome Trust (104631/Z/14/Z)
Medical Research Council (G0701500)
Medical Research Council (G0802729)
Medical Research Council (G0001354)