The present invention relates to a method of treating a patient suffering from a disorder of the central nervous system associated with 5-HT1A receptor subtype, comprising as an active ingredient a carbostyril derivative or a salt thereof represented by the formula :wherein the carbon-carbon bond between 3- and 4-positions in the carbostyril skeleton is a single or a double bond. In embodiments of the invention, a picturegraphic classification method and system implements one-dimensional color discreteness features, two-dimensional color discreteness features, or three-dimensional color discreteness features for image classification of natural pictures and synthetic graphics. The first conductor arm is configured to resonate in a second frequency band and extends from the feed-in end. A locking ring configured to reside within the groove of the head. The gas distributor is centrally and symmetrically arranged relative to the stacks so that it itself promotes realization of the desired gas flow distribution and pressure differential. In addition, the node reconfigures its cross-connect for the transition from the service path to the restoration path.