Changes

[[Freud]]'s [[theory ]] of the [[drive ]] was revised extensively throughout his career.

The drive, or [[instinct ]] as it is usually translated in [[English]], is a [[concept ]] that [[exists ]] on the border between the somatic ([[bodily]]) and the mentral.

It consists of a quantity of [[energy ]] and its [[psychical ]] [[representative]].

The Freduain drive is a "constant force of a [[biological ]] [[nature]], emanating from organizc sources, that always has as its aim its own [[satisfaction ]] through the elimination of the [[state ]] of tension which operates at the source of the drive itself.

According to Freud, there are four chracterisitcs of the drive: its 'pressure', its 'aim', its '[[object]]' and its 'source.'

By pressure Freud means the drive's motor factor, that is to say, the amount of force or meaasure of the [[demand ]] for [[work ]] which it represents.