The relation between self-discrepancies and emotion: The moderating roles of self-guide importance, location relevance, and social self-domain centrality.

In 5 studies, the authors investigated the effects of self-guide importance, domain centrality to self-definition, and self-domain relevance of testing location on relationships between actual–ideal (AI) and actual–ought (AO) discrepancies and emotions. Although no unique relationships occurred for self discrepancies, moderating effects were found for social self-domains. Location relevance overshadowed other moderator effects. In less relevant locations, AI discrepancies were smaller and AO discrepancy–emotion relationships were moderated by self-guide importance. For more important self-domains, AI discrepancies were smaller and AO discrepancies were unrelated to agitation. For less important self-domains, agitation was related to the AO discrepancy and self-guide importance interaction. By suggesting that different self-regulatory strategies minimize the consequences of AI and AO discrepancies, evidence for distinct ideal and ought self-regulation is provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The postural support of seats: a study of driver preferences during simulated tractor operation

The overall comfort of four current production tractor seats and some individual features of seat design have been assessed by a method of paired comparisons. The experiment was carried out under both static and dynamic conditions and subjects had to adopt natural postures similar to those adopted when ploughing. The results suggest that operators can differentiate seat comfort differences reliably. Subjects' posture has proved important particularly when assessing the height of the back rest. On the other hand most appraisals were not significantly affected by the conditions (dynamic or static) of the simulation. An exception to this was the cushion length. This experiment has finally produced enough information on the relative importance of various aspects to enable us to design an experimental seat to be used in a series of experiments to assess specific features of seat aspects. The ultimate objectives of this investigation are to determine what aspects of seat and workplace design affect the comfort of the operator and how these can be altered to improve the tractor driver's posture.