A pilot study and two experiments investigated the influence of positive affect, induced in three differing ways, on the uniqueness of word associations. Persons in the positive-affect conditions gave more unusual first-associates to neutral words, according to the Palermo & Jenkins (1964) norms, than did subjects in the control conditions. In Study 3, where word type (positive, neutral, negative) was a second factor along with affect, in a between-subjects design, associates to positive words were also more unusual and diverse than were those to other words. These results were related to those of studies suggesting that positive affect may facilitate creative problem solving and to other work suggesting an impact of positive feelings on cognitive organization.

This study explored the use of process tracing techniques in examining the decision-making processes of older and younger adults. Thirty-six college-age and thirty-six retirement-age participants decided which one of six cars they would purchase on the basis of computer-accessed data. They provided information search protocols. Results indicate that total time to reach a decision did not differ according to age. However, retirement-age participants used less information, spent more time viewing, and re-viewed fewer bits of information than college-age participants. Information search patterns differed markedly between age groups. Patterns of retirement-age adults indicated their use of noncompensatory decision rules which, according to decision-making literature (Payne, 1976), reduce cognitive processing demands. The patterns of the college-age adults indicated their use of compensatory decision rules, which have higher processing demands.

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Statins, a class of cholesterol-lowering medications that inhibit 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase, are commonly administered to treat atherosclerotic cardiovascular disease. Statin use may expand considerably given its potential for treating an array of cholesterol-independent diseases. However, the lack of conclusive evidence supporting these emerging therapeutic uses of statins brings to the fore a number of unanswered questions including uncertainties regarding patient-to-patient variability in response to statins, the most appropriate statin to be used for the desired effect, and the efficacy of statins in treating cholesterol-independent diseases. In this review, the adverse effects, costs, and drug–drug and drug–food interactions associated with statin use are presented. Furthermore, we discuss the pleiotropic effects associated with statins with regard to the onset and progression of autoimmune and inflammatory diseases, cancer, neurodegenerative disorders, strokes, bacterial infections, and human immunodeficiency virus. Understanding these issues will improve the prognosis of patients who are administered statins and potentially expand our ability to treat a wide variety of diseases.

The study explores the importance of conversational processes for understanding collaborative cognitive performance by examining the interactions of married couples that facilitate performance on 2 everyday cognitive tasks. Twenty-four adults, 6 young (M age = 29.7 years) and 6 older (M = 70.8 years) married couples, completed a vacation decision-making task and an errand-running task. Couples were asked to talk as they performed the tasks and speech acts were coded as to whether they involved high-affiliation exchanges (between-partner sequences of cooperative and obliging speech acts) or low-affiliation exchanges (between-partner sequences of controlling and withdrawing speech acts). Interactions characterized by high affiliation were associated with greater use of information and the use of feature based DISCOURSE PROCESSES, 35(1), search strategies on the decision-making task and shorter routes on the errand-running task. Open-ended interviews revealed the importance of division of labor and delegation when collaborating in daily life. The results illustrate the diversity present in couples' interactive patterns and approaches to collaboration. Further, the results demonstrate the potential of integrating work on collaborative cognition and conversational processes.Researchers investigating cognition in everyday contexts have examined how individuals make decisions (e.g.. Given the focus of this literature on the cognitive outcomes of collaboration, little research has examined the social interactions that may facilitate collaborative performance. This study examines how married couples solve everyday problems together and the interactions that facilitate everyday problem-solving performance. Gould et al., 1991) found that married couples benefit from working together to perform memory tasks. Their work also suggests features of interactions that are important for facilitating performance. Dixon (1992) found that young and old adults who worked with one or two other people outperformed individuals who completed free recall and fact memory tasks alone. Young and old adults benefited from group discussions regarding strategies that would maximize performance, negotiations regarding how the strategies would be implemented and the correct answer to the problems. Through an examination of the conversations involved in remembering, Gould et al. (1994) found that older married couples were more likely than younger married couples to time their discussion concerning strategies for remembering at a point when individual-based recall was declining. Thus, it appears that married couples benefit when collaboration occurs through interactions that involve shared effort, negotiations, and elaborations that support and extend individual cognitive functioning. An extensive literature in child development provides further support for the idea that qualities of individuals' interactions are important for understanding cognitive performance in collaborative settings (see Rogoff, 1998, for a review). A potentially interactive co...

Two studies examined the impact of think-aloud and self-report instructions on the decision-making performance of young and older adults. Findings from Study 1 indicated that think-aloud instructions increased total time to decision for young and older adults but did not otherwise affect decision-making processes. Counter to predictions, the only significant interaction effect indicated that young adults in the think-aloud condition more frequently rechecked information than older adults. Findings from Study 2 confirmed the nonreactive nature of self-report methods. Despite potential age-related decrements in cognitive function, differences in functioning are not compounded and cannot be explained by the think-aloud or self-report instructions used by cognitive aging researchers.

The goals of this study were to identify the benefits and barriers perceived by family caregivers of persons who have been through a diagnostic assessment for dementia symptoms and to determine which caregivers experience more benefits and barriers associated with assessments. A survey was mailed to caregivers involved in the decision to seek a diagnostic assessment for a family member at a University of Kentucky memory disorders clinic. A total of 528 family caregivers (response rate 71.7%) returned a 4-page survey designed to elicit benefits, barriers, and demographic information. Respondents delayed the diagnostic assessment for an average of 22.4 months after noticing symptoms. Perceived benefits involved confirmation of a medical condition, access to treatment, and help preparing for the caregiving role. Barriers were both emotional and pragmatic in nature. Respondents who were younger, visited the rural assessment clinic, and had less education experienced more barriers. All groups reported receiving the same number of benefits from the assessment. By incorporating these benefits and barriers, interventions can be designed to increase the likelihood of early diagnostic assessments.

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