Assembling a task space: global determination of local shift costs.

Most theorizing on the origin of the costs that are associated with task shifts focuses on local transitions between individual trials. In the present article we argue that this emphasis has resulted in a neglect of more global representational structures, which also determinate shift costs. To substantiate this claim, we employed a set of four tasks that results from a factorial combination of two types of judgment and two judgment-to-response mappings.

Processes of task-set reconfiguration: switching operations and implementation operations.

When participants are asked to shift between four dimensionally organized tasks which differ in the type of judgment (numerical vs. spatial) and/or the judgment-to-response mapping (compatible vs. incompatible), a characteristic profile of shift costs can be observed.

[On the effects of psychoanalytic oriented psychotherapy - an inpatient multicenter study].

Whereas the efficacy of inpatient treatment in socalled psychosomatic rehabilitation clinics in Germany has been well researched and documented, studies involving large samples on the efficacy of inpatient treatment in acute hospitals are lacking. A multicentered retrospective study involving clinics for psychotherapy at three separate universities was conducted on a sample of n=495. The patients were treated on an inpatient basis between April 1990 and July 1998 in one of the clinics.