A method for the dynamic management at a read-write memory which permits the storage and removal of objects of different sizes. For example, a hierarchy of policies is stored in a search priority order in an associative memory, with each association of a particular policy stored higher in the search priority than its associated policy and after any other policy. The pixel potential is outputted to the source wiring in the writing period, while a common potential is inputted to the source wiring in the nonwriting period. The device may be a device implanted within the patient or an external device that can be carried or attached to the body or clothing of the patient. By virtue of the fact that the cooling unit and the filter unit are joined together as one piece and that the filter unit is placed together with the cooling unit inside a device housing, the inventive cooling device can be constructed in a manner that is considerably more compact and lighter while having an output that is comparable to that of prior art solutions. In the method, a therapeutically effective amount of a selective muscarinic m1 agonist compound is administered to a patient in need of such treatment.