medial forebrain bundle

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A tract of nerve fibres on each side of the hypothalamus involved in the control of hunger and predatory aggression, and functioning more generally as a major reward centre through the action of the catecholamines dopamine and noradrenalin (norepinephrine). See also pleasure centre, quiet-biting attack. MFB abbrev. [From Latin medialis situated in the middle, from medius the middle + English forebrain]

Subjects: Psychology.

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