"Psychopathology should make clear what we know, how we know, and what we do not know. " "ffYoU thinkyou could eliminate philosophy, and regard it as something irrele vant it will overwhelm you in some obscure tDsguise. This is the point where that bulk of bad philosophy in psychopathological studies originates. " KARL JASPERS Since the publication of KARL JASPERS' General Psychopathology in 1913 at least, it has become obvious that a psychopathologist cannot do without philosophical reflection. If he wants to say anything about disorders of perception and thought, or of the experiencing I, to name the subjects of this book, he must know those disorders and the problems related to them. The phenomena and problems in question are not at all simply empirical (which is to say that they concern the structure and function of the organs of sense or the central nervous system), but conceptual. We have already formed some notions and prejudices concerning those subjects - perception, e. g. , is considered to be "a projection from the outside into the inward", thinking "a kind of inward talk", the I refers to "reflec ting upon me by myself', etc. Unless we think about these ideas critically, we shall fail in describing disorders of experience, thought, and action.

Psychiatry, Philosophy, and the Problem of Description

One: Disturbances of Perception and Formal Thought
Affekte als Wahrnehmungs- und Denkstörungen
"Feelings" of Conviction: On the Relation of Affect and Thought Disorder
Die Beziehung zwischen Philosophie und Psychiatrie, vom Standpunkt einer systemtheoretischen Konzeption produktiver Psychosen aus betrachtet
Zur Psychopathologie und Neuropsychologic der Wahrnehmung von Gesichtern
Zur intentionalen Struktur einer schizophasischen Selbstdarstellung
Dies und nicht das - dies mag das Problem sein: Formal-logische Betrachtungen der schizophrenen Denkstörungen
Two: Delusions
Language Disorders in Psychoses and Their Impact on Delusions
Melancholie und Wahn
Karl Jaspers, Mental States, and Delusional Beliefs: A Redefinition and Its Implications
Three: The Experiencing I and Its Disturbances (Ichstörungen)
Bewußtsein und Selbstbewußtsein
Ichstörungen bei Modellpsychosen
Ichstörungen: In Search of a Theory
Zur Psychopathologie des Ich-Erlebens Schizophrener
Was sind Quasi-Indikatoren? Eine Einführung in Castañedas Theorie der Subjektivität
Persons, Egos, and /'s: Their Sameness Relations
Four: Final Comments and Reflections
Psychopathologie und Philosophie: Synopsis und Ausblick
Epilogue: Philosophy, Psychiatry, and Modes of Scientific Progress
Author Index/Personenregister.