Athymhormic syndrome

Rare psychological or neurological condition

Athymhormic syndrome, psychic akinesia, or auto-activation deficit (AAD) is a rare psychopathological and neurological syndrome characterized by extreme passivity, apathy, blunted affect and a profound generalized loss of self-motivation and conscious thought. For example, a patient spent 45 minutes with his hands on a lawn mower, totally unable to initiate the act of mowing. This "kinetic blockade" disappeared instantaneously when his son told him to move. The existence of such symptoms in patients after damage to certain structures in the brain has been used in support of a physical model of motivation in human beings, wherein the limbic loop of the basal ganglia is the initiator of directed action and thought. It is a disorder of diminished motivation.

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