Abstract
Translation from German of a lit review (summarizing and evaluating) in the psychology of thinking. Focuses on experimental psychology and addresses problems of self-observation (Lipps, Ach, Judd, Gibson, Wm. James, Kiesow), reproduction (Semon, Forel, Detto), the influence of an assigned task and capacities for concentration (Ach, Bleuler, Heilbronner), perseveration (Heilbronner, Stransky, Kiesow), a few miscellaneous issues Watt couldn't fit into these categories (Aliotta, Lobsien, Ranschburg, C. Jung), diagnosing a state of affairs (Wertheimer and Klein, C. Jung), and psychopathology (Heilbronner, Stransky, Reich).