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Biomedical subjects

D Dörner

Publications and source records attributed to D Dörner.

6 recordsLinked to original sources
PubMed1993

Strategic thinking and stress.

In this study we investigate the behaviour and the performance of experimental subjects, who had to solve a series of tasks of 'strategic thinking' under a stress and a non-stress condition. No significant differences between the conditions could be found with respect to performance and improvement of performance within the series of tasks, but the experimental subjects exhibited under the different conditions different forms of behaviour. Unexpectedly the Ss working under the stress-condition exhibited a more 'analytical' behaviour and increased their workload, instead of decreasing it. Additionally they exhibited a tendency for measures with salient effects and proved to be better in finding the right points of main effort. The results are discussed with respect to a general theory of action regulation.

Humans↗
PubMed1993

[Knowledge, emotions and regulation of actions or the reason of feelings].

This paper concerns the interaction of emotion and knowledge in action regulation. First a new theory of emotions is developed. Emotions are considered as modulations of cognitive processes. Such a modulation is for instance the change of the resolution level of cognitive processes. Another modulation is the change of the "updating rate" of the image of the environment. A theory is developed how these modulations are dependent on "context parameters". Action regulation is a process, which is considered as consisting of three levels. The first one is the level of the automatisms. The second level is reasoning and planning, the third level is information collection by observation or trial and error behaviour. The change between these levels is dependent on the state of the knowledge about the respective domain of reality. It can be shown, that the concept of emotion and emotional change as consisting on a context dependent change of the modulation of cognitive processes and the three stage theory of action regulation is sufficient to explain emotional forms of behaviour.

Behavior↗
PubMed1990

The logic of failure.

Unlike other living creatures, humans can adapt to uncertainty. They can form hypotheses about situations marked by uncertainty and can anticipate their actions by planning. They can expect the unexpected and take precautions against it. In numerous experiments, we have investigated the manner in which humans deal with these demands. In these experiments, we used computer simulated scenarios representing, for example, a small town, ecological or economic systems or political systems such as a Third World country. Within these computer-simulated scenarios, the subjects had to look for information, plan actions, form hypotheses, etc.

Africa, Western↗