. Alienist and neurologist. . e outer world come to the perception, the more frag-mentary and the less reliable will the outlook remain whichdevelops in the consciousness of the person about his surround-ings, about his own self, and about his relation to the environ-ment. In addition to this it happens that to those disorders whichinfluence the assembling of the material of experience there are associated almost withoutexception those which influence in a pathological way the future development of thatmaterial. Disorders of the Memory.—The commonest ground material of all mental activityis th


. Alienist and neurologist. . e outer world come to the perception, the more frag-mentary and the less reliable will the outlook remain whichdevelops in the consciousness of the person about his surround-ings, about his own self, and about his relation to the environ-ment. In addition to this it happens that to those disorders whichinfluence the assembling of the material of experience there are associated almost withoutexception those which influence in a pathological way the future development of thatmaterial. Disorders of the Memory.—The commonest ground material of all mental activityis the memory.^ Each impression that has once gotten into the consciousness, after itdisappears, leaves behind a trace which gradually becomes weaker, but which makes itsrenewal easy by an accidental combination of ideas or by an effort of will, the recol-lection. This permanent trace which enrolls in the store of experience of the person *Ribot, Das Gedachtnis und seine Storungen, 1882; SoUier, Les troubles de la memoire, Page Eighty-Five THE ALIENIST AND NEUROLOGIST the perception once made a long time before, and places it with the memory for dis-posal, is retained in general the more strongly and the longer; in other words, theclearer the original impression was grasped and the more general its relations were tothe rest of the content of consciousness, the more it had aroused the interesi of theperson. In addition to this, however, the firmness with which earlier impressions stickis increased to a high degree by repetition. The greatest majority of our ideas andeven a large part of the combmations of ideas with which we work daily, are so familiarto us that they rise in us without any effort of recollection, by themselves, as soon asany incitement to it is offered. The consideration of the disorders of memory, therefore, has two quite differentprocesses to separate which can be considered quite independently of one another. Thefirst of these is the abilil]} to lake noti


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectpsychology, bookyear1