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TR Mitchell

Publications and source records attributed to TR Mitchell.

2 recordsLinked to original sources

How Do Logical Inference Rules Help Construct Social Mental Models?

Starting from recent approaches in mental model research, it is argued that (1) logical inference rules are used in order to construct mental cliques from learned sentiment relations, and (2) social context cues (operationalized as primes) play a crucial role in activating such rules. Transitivity and antitransitivity are taken as examples, and are shown as core constituents of such models. In a first experiment, priming was achieved by announcing the sorting of fictitious persons in either two or three cliques. Thirty-one subjects studied eight sets of sentiment relations among these persons that either did or did not satisfy their primed clique expectations. They showed longer study times and more requests for additional information in the case of inconsistent fits between prime and set. Their sorting solutions also showed clear priming effects. A second experiment (n = 30) showed that when undergoing a recognition test after seeing the relation sets, subjects tended to confuse model-consistent distractors with information they had actually seen. In a third experiment (n = 30) the results from Experiment 1 were replicated using more realistic learning materials.

Journal Article

Temporal Adjustments in the Evaluation of Events: The "Rosy View"

In a series of three investigations we examined people's anticipation of, actual experiences in, and subsequent recollection of meaningful life events: a trip to Europe, a Thanksgiving vacation, and a 3-week bicycle trip in California. The results of all three studies supported the hypothesis that people's expectations of personal events are more positive than their actual experience during the event itself, and their subsequent recollection of that event is more positive than the actual experience. The "rosy view" phenomenon is associated with an increase in the number of negative thoughts during the event which seem to be caused by distractions, disappointment, and a less positive view of the self. However, these effects are short-lived; within days after the event, people have much more positive evaluations of the event. We discuss alternative interpretations for our findings and implications for group and organizational settings.

Journal Article