Changing food preference as a function of mood

The authors investigated the effect of mood on food selection. Participants (N = 98) indicated the likelihood of general eating and the likelihood of eating specific foods after reading and projecting themselves onto the events and emotions described in a sad and a happy vignette. Both men and women believed they were more likely to consume food following a happy versus a sad event, and men believed they were significantly more likely to eat than did women. However, the type of food men and women believed they would consume interacted with the type of event experienced. Vegetarian snack foods were more likely to be consumed following a happy versus a sad event, with men more likely to eat snack foods. Men did not significantly change in likelihood of consuming sweet foods as their mood changed. However, women believed they were more likely to consume sweet foods following a sad event. The authors discuss the results in terms of a self-medication hypothesis and the effect of carbohydrates on central serotonin and endogenous opioids. Overall, results demonstrated that mood influences belief in the likelihood of food selection.     

Intrinsic motivation as a function of extrinsic financial rewards and subjects'locus of control

Two studies investigating the effects of pay on the intrinsic motivation of subjects varying along the dimension of locus of control were conducted. It was hypothesized that internals, who should assign greater weight to the competency aspect of rewards they receive, would manifest increasing intrinsic motivation as pay increased. Externals, who should be more likely to focus on the controlling aspects of rewards, were expected to show decreases in intrinsic motivation as rewards increased. In Study 1, where both the controlling and competency aspects of the rewards offered were deliberately kept vague, the hypotheses were supported. In Study 2, where the controlling aspect of the pay offered was made salient by making pay contingent upon performance, high pay undermined the intrinsic motivation of both internals and externals. It was suggested that only when the controlling aspect of pay is not salient will the intrinsic motivation of externals and internals be differentially affected. Support for the hypothesis that internals and externals differentially weight available information when making causal attributions was also noted.     

Self-generated cognitive fluency as an alternative route to preference formation

People tend to prefer fluently processed over harder to process information. In this study we examine two issues concerning fluency and preference. First, previous research has pre-selected fluent and non-fluent materials. We did not take this approach yet show that the fluency of individuals’ idiosyncratic on-line interactions with a given stimulus can influence preference formation. Second, while processing fluency influences preference, the opposite also may be true: preferred stimuli could be processed more fluently than non-preferred. Participants performed a visual search task either before or after indicating their preferred images from an array of either paintings by Kandinsky or decorated coffee mugs. Preferred stimuli were associated with fluent processing, reflected in facilitated search times. Critically, this was only the case for participants who gave their preferences after completing the visual search task, not for those stating preferences prior to the visual search task. Our results suggest that the spontaneous and idiosyncratic experience of processing fluency plays a role in forming preference judgments and conversely that our first impressions of preference do not drive response fluency.     

Changes in nonprofessional mental health workers' response preference and attitudes as a function of training and supervised field experience

Nonprofessional mental health workers in a program for early detection and prevention of school maladaptation in children were compared to demographically similar controls on changes in attitudes and clinical response style after 12 didactic training sessions and 3$\text{1}\text{2}$ months of supervised field experience. There were no attitude change differences between aides and controls. Aides, however, came to favor “understanding” responses significantly more, and “rejecting” responses less, than controls. Interpretively, some combination of training, experience, and supervision increased aide knowledgeability without diminishing warmth and spontaneity.