Decreased Cortical Activity in Impulsivity

Impulsivity is supposed to be related to several different clinical problems and disorders, such as attention-deficit hyperactivity disorder, conduct disorder, substance abuse, pathological gambling, and certain personality disorders. Several different theories have attempted to reveal the psychophysiology of impulsivity. For example, Gray suggested that a behavioural activation system is the neuroanatomical basis of impulsivity. The personality dimension of impulsivity as proposed by Gray is closely related to extraversion. In a preceding theory Eysenck suggested that extraversion is inversely related to cortic…