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Results for “Reasoning”

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PubMed2001

Influence of patient factors on age of restorations at failure and reasons for their placement and replacement.

OBJECTIVE: This study examined the reasons given by a selected group of dental practitioners for placement and replacement of restorations and correlated the data provided with patient factors, such as patients' age and gender, caries risk, occlusal function and oral hygiene, with restoration longevity. METHOD: A group of general dental practitioners (GDPs) were recruited to take part in the study. Each participant was asked to record the reason for placement or replacement of restorations from a list of potential reasons. The age and Class of the restoration being replaced was also recorded, as also was the material being used and the material being replaced. RESULTS: Details of reason for placement/replacement was received on 3196 restorations from 32 GDPs. Of the restorations placed, 54% were amalgam, 32% composite, 8% compomer and 7% glass ionomer. The reasons for placement/replacement of the restorations were principally primary caries (28%), secondary caries (29%), margin fracture (10%), tooth fracture (7%), and non-carious defects (6%). Overall, the mean age of restorations at failure was 7.1 years. Of the patients who received glass ionomer restorations, 29% were rated as having poor oral hygiene, compared with 18% of the patients who received amalgam restorations, 18% of the patients who received composite restorations and 23% of the patients who received compomer restorations. Of the patients who received glass ionomer restorations, 35% were rated as having high caries susceptibility, compared with 27% of those receiving amalgam restorations, 21% of those receiving composite restorations and 30% of those receiving compomer restorations. CONCLUSION: Primary caries was the principal reason for initial restorations. Secondary caries was the most prevalent reason for replacement of restorations. The results also indicate a selective application of different materials for different patients.

Adolescent↗

PubMed2001

Differences in autonomic physiological responses between good and poor inductive reasoners.

We investigated individual- and task-related differences in autonomic physiological responses induced by time limited figural and verbal inductive reasoning tasks. In a group of 52 participants, the percentage of correctly responded task items was evaluated together with nine different autonomic physiological response measures and respiration rate (RR). Weighted multidimensional scaling analyses of the physiological responses revealed three underlying dimensions, primarily characterized by RR, parasympathetic, and sympathetic activity. RR and sympathetic activity appeared to be relatively more important response dimensions for poor reasoners, whereas parasympathetic responsivity was relatively more important for good reasoners. These results suggest that poor reasoners showed higher levels of cognitive processing intensity than good reasoners. Furthermore, for the good reasoners, the dimension of sympathetic activity was relatively more important during the figural than during the verbal reasoning task, which was explained in terms of hemispheric lateralization in autonomic function.

Adult↗

PubMedDate not supplied

College students' self-reported reasons for playing drinking games.

Two samples of college students who engage in drinking games completed questions about their drinking behavior, a set of items concerning their reasons for playing drinking games, and various self-report measures of personality. Principal components analysis using the first sample yielded four factors: Relaxation & Disinhibition, Fun & Celebration, Conformity, and Sexual Manipulation. A similar factor structure was also obtained in the second sample. In both samples, Fun & Celebration and Sexual Manipulation reasons were most strongly predictive of frequency of play and quantity of alcohol consumed while playing. In men, Sexual Manipulation reasons for play predicted frequency of taking sexual advantage of others during play. Endorsement of Conformity and Relaxation & Disinhibition reasons were associated with high social anxiety and low assertiveness. Reasons for play predicted consumption, both in drinking-game situations and overall, even after removing variance due to general reasons for drinking. Psychometric properties of the current measure are less than ideal, but the constructs identified appear to have important implications for prevention. Assessment of self-reported reasons for drinking in specific situations may be a generally useful strategy.

Adolescent↗

PubMed2006

Reasoning under uncertainty: heuristic judgments in patients with persecutory delusions or depression.

OBJECTIVE: The substantial literature examining social reasoning in people with delusions has, to date, neglected the commonest form of decision making in daily life. We address this imbalance by reporting here the findings of the first study to explore heuristic reasoning in people with persecutory delusions. METHOD: People with active or remitted paranoid delusions, depressed and healthy adults performed two novel heuristic reasoning tasks that varied in emotional valence. RESULTS: The findings indicated that people with persecutory delusions displayed biases during heuristic reasoning that were most obvious when reasoning about threatening and positive material. Clear similarities existed between the currently paranoid group and the depressed group in terms of their reasoning about the likelihood of events happening to them, with both groups tending to believe that pleasant things would not happen to them. However, only the currently paranoid group showed an increased tendency to view other people as threatening. CONCLUSION: This study has initiated the exploration of heuristic reasoning in paranoia and depression. The findings have therapeutic utility and future work could focus on the differentiation of paranoia and depression at a cognitive level.

Adult↗

PubMed1998

Competing conceptions of diagnostic reasoning--is there a way out?

Diagnostic errors are more frequently a result of the clinician's failure to combine medical knowledge adequately than of data inaccuracy. Diagnostic reasoning studies are valuable to understand and improve diagnostic reasoning. However, most diagnostic reasoning studies are characterized by some limitations which make these studies seem more simple than diagnostic reasoning in real life situations actually is. These limitations are connected both to the failure to acknowledge components of knowledge used in clinical practice as well as to acknowledge the physician-patient relationship's influence on clinical knowledge and on the reasoning process itself. In addition the modes of reasoning described in these studies frequently is oversimplified. In this paper three simplistic and competing models of diagnostic reasoning are analyzed and criticized, followed by an evaluation of two alternative models proposing a combined view.

Decision Support Techniques↗

PubMed2002

Development of quantitative reasoning and gender biases.

One hundred twenty-seven 7-, 9-, and 11-year-old children were presented large or small samples of own-gender enhancing or other-gender enhancing observations. Children read arguments based on the observations, rated argument intelligence, judged the number of other children to whom the observations could be generalized, and provided verbal justifications for their judgments. Own-gender reasoning biases declined with age; these declines were, however, partially accounted for by declines in the strength of self-reported gender affiliations. Reasoning biases--demonstrated by problem-to-problem shifts in reasoning quality-were constrained by sample size, indicating a modest degree of rationality even among 7-year-olds. Specifically, biases co-existed with reasonably limited generalizations from small samples of own-gender evidence and with reasonably extensive generalizations from large samples of other-gender evidence. Children were thus able to satisfy motivations for own-gender favoritism and reason in accord with the law of large numbers. Several explanations of the findings-based on changes in the salience of gender, multiple classification skills, and the ability to reason independently from beliefs-are offered.

Attitude↗

PubMed1986

Individual differences in syllogistic reasoning: deduction rules or mental models?

Two studies examined the correlates of reasoning ability on a syllogistic reasoning task in subjects who lacked formal background in logic. The main issue addressed was the extent to which reasoning proficiency arises from the consideration of multiple possible set relations (mental models) as opposed to explicit or implicit reliance on deduction rules. Evidence for the use of both models and rules was obtained. Although "good" and "poor" reasoners differed even when time constraints were imposed (consistent with the supposition of a better set of rules among good reasoners), good reasoners showed more improvement and chose to take longer amounts of time when time constraints were removed, suggesting that they considered more alternatives than did the poor reasoners. A comparison between these two groups and a third group of subjects, graduate students who had studied logic, reveals striking differences in both accuracy and speed.

Cognition↗

PubMed2002

Alzheimer's disease patients' and caregivers' capacity, competency, and reasons to enroll in an early-phase Alzheimer's disease clinical trial.

OBJECTIVES: To examine the capacity, competency, and reasons for enrolling of patients with Alzheimer's disease (AD) and of their caregivers in an early phase AD clinical trial. DESIGN: Interviews were conducted with patients with AD, nondemented older persons, and caregivers. SETTING: Participants' homes. PARTICIPANTS: Fifteen patients with mild to moderate AD, 15 age- and education-matched nondemented older persons, and 15 patient caregivers. MEASUREMENTS: Capacity was measured using the MacArthur Competency Assessment Tool for Clinical Research (MacCAT-CR); a study coordinator who reviewed audiotapes of the capacity interviews judged competency, and the reasons for a decision were determined by coding the capacity interviews. RESULTS: On all measures except the ability to make a choice, patients performed worse than controls (understanding: z = 3.2, P =.001; appreciation: z = 2.8, P =.005; reasoning: z = 3.5, P =.0005), and caregivers (understanding: z = 3.8, P =.0002; appreciation: z = 3.0, P =.003; reasoning: z = 3.6, P =.0003). Using the controls' performance to set psychometric criteria to define capacity, the proportions of patients with adequate understanding, appreciation, and reasoning were six of 15 (40%), three of 15 (20%), and five of 15 (33%). All caregivers and nine of the 15 (60%) patients were competent. Reasons for enrolling typically featured the potential benefit to the patients' health or well-being and altruism that was expressed as a desire to help other patients and their families or a desire to contribute to scientific knowledge. CONCLUSIONS: The MacCAT-CR, in particular its understanding scale, is a reliable and valid way to assess patient capacity and competency to enroll in an early-phase clinical trial. Although many patients have significant impairments in their capacity, some mild-stage patients are competent. Reasons for enrolling in an early-phase trial blend an expectation of therapeutic benefit and a desire to help others.

Aged↗

PubMed2001

[Frequency and reasons for switching/stopping use of oral contraceptives. Results of the German Cohort Study on Women Health].

Frequency and reasons for switching/stopping use of oral contraceptives. Results of the German Cohort Study on Women Health. Use of oral contraceptives is the safest and most commonly used method of contraception. The frequency of use underscores the importance of research on benefits, risks, and acceptability of long-term use. - An interim analysis of the German Cohort Study on Women's Health (aged 15-65 years) was performed to analyse frequency and reason of switching or stop of OC-use. We got for this analysis over 10 000 women with almost 100 000 years of observation from first to last (or current) OC use. - The prevalence of ever use of OCs was 85.5 % in our cohort. Switching or stop of OC use was observed in 93 % of the women. The frequency of switching increased with age and duration of use. Social parameter such as education, employment status, and living in the old or the new Federal States were not materially associated with the frequency of switching or stopping OC use. Satisfaction with general health, psychic stability, and sexual life was slightly associated with the frequency of switching: The better satisfaction the lower frequency of switching, but the sequence of cause and consequence is unclear. The most frequent categories of reasons for switching were observed side effects and personal reasons. Desire to get pregnant was the number one single reason, followed by headache/migraine, and bleeding problems. The frequency of more than 50 single reasons is listed. - The frequency and the knowledge of reason for switching or stopping OC use underlines the need for a good collaboration between physician and treated woman. However, also research on long-term compliance is required and the development of OCs with even less side effects.

Adolescent↗

PubMed2002

Selective impairment of reasoning about social exchange in a patient with bilateral limbic system damage.

Social exchange is a pervasive feature of human social life. Models in evolutionary biology predict that for social exchange to evolve in a species, individuals must be able to detect cheaters (nonreciprocators). Previous research suggests that humans have a cognitive mechanism specialized for detecting cheaters. Here we provide neurological evidence indicating that social exchange reasoning can be selectively impaired while reasoning about other domains is left intact. The patient, R.M., had extensive bilateral limbic system damage, affecting orbitofrontal cortex, temporal pole, and amygdala. We compared his performance on two types of reasoning problem that were closely matched in form and equally difficult for control subjects: social contract rules (of the form, "If you take the benefit, then you must satisfy the requirement") and precaution rules (of the form, "If you engage in hazardous activity X, then you must take precaution Y"). R.M. performed significantly worse in social contract reasoning than in precaution reasoning, when compared both with normal controls and with other brain-damaged subjects. This dissociation in reasoning performance provides evidence that reasoning about social exchange is a specialized and separable component of human social intelligence, and is consistent with other research indicating that the brain processes information about the social world differently from other types of information.

Adult↗

PubMed2002

Assessing clinical reasoning: a method to monitor its development in a PBL curriculum.

The aim of this study was to develop and trial a method to monitor the evolution of clinical reasoning in a PBL curriculum that is suitable for use in a large medical school. Termed Clinical Reasoning Problems (CRPs), it is based on the notion that clinical reasoning is dependent on the identification and correct interpretation of certain critical clinical features. Each problem consists of a clinical scenario comprising presentation, history and physical examination. Based on this information, subjects are asked to nominate the two most likely diagnoses and to list the clinical features that they considered in formulating their diagnoses, indicating whether these features supported or opposed the nominated diagnoses. Students at different levels of medical training completed a set of 10 CRPs as well as the Diagnostic Thinking Inventory, a self-reporting questionnaire designed to assess reasoning style. Responses were scored against those of a reference group of general practitioners. Results indicate that the CRPs are an easily administered, reliable and valid assessment of clinical reasoning, able to successfully monitor its development throughout medical training. Consequently, they can be employed to assess clinical reasoning skill in individual students and to evaluate the success of undergraduate medical schools in providing effective tuition in clinical reasoning.

Adult↗

PubMed2004

Belief bias and figural bias in syllogistic reasoning.

Belief bias is the tendency to be influenced by the believability of the conclusion when attempting to solve a syllogistic reasoning problem. Figural bias is the tendency to be influenced by the order in which the information is presented in the premises when attempting to solve a syllogistic reasoning problem. When studied simultaneously they enable an investigation of whether participants' reasoning on the syllogistic reasoning task is guided by the conclusion (backward reasoning) or the premises (forward reasoning). Experiments 1 and 2 found evidence of belief bias but not figural bias on the syllogistic evaluation task paradigm. Experiments 3 and 4 found evidence of figural bias but not belief bias on the syllogistic production task paradigm. The findings highlight that different task characteristics influence performance dependent upon the nature of task presentation. These findings are discussed in the context of current theories of belief bias in syllogistic reasoning.

Cognition↗

PubMed2006

Patterns of reasoning and decision making about condom use by urban college students.

HIV infection rates are rapidly increasing among young heterosexuals, making it increasingly important to understand how these individuals make decisions regarding risk in sexual encounters. Our objective in this study was to characterize young adults' safer sex behaviour and associate this behaviour with patterns of reasoning, using cognitive, information processing methods to understand the process of sexual risk taking. Sixty urban college students from NYC maintained diaries for two weeks and then were interviewed regarding lifetime condom use and sexual history. Using cognitive analysis, we characterized four patterns of condom use behaviour: consistent condom use (35.0%), inconsistent condom use (16.7%), shifting from consistent to inconsistent condom use (35.0%), and shifting from inconsistent to consistent condom use (13.3%). Directionality of reasoning (i.e. data-driven and hypothesis-driven reasoning) was analysed in the explanations provided for condom use decisions. The consistent and inconsistent patterns of condom use were associated with data-driven heuristic reasoning, where behaviour becomes automated and is associated with a high level of confidence in one's judgment. In the other two patterns, the shift in behaviour was due to a significant event that caused a change in type of reasoning to explanation-based reasoning, reflecting feelings of uncertainty and willingness to evaluate their decisions. We discuss these results within the framework of identifying potentially high-risk groups (e.g. heterosexual young adults) as well as intervention strategies for risk reduction. Further, our findings not only identify different patterns of condom use behaviour, but our investigation of the cognitive process of decision-making characterizes the conditions under which such behaviour and reasoning change.

Adult↗

PubMed2005

Association between age, gender and reasons for smoking cessation.

AIMS: To contribute to improved programs for smoking cessation, the authors wanted to assess the relationships between age, gender and ex-smokers' quitting reasons and examine predictors of the most commonly reported quitting reasons. METHODS: A questionnaire was mailed to 11,919 subjects in Akershus County, Norway. Among the 7,697 respondents (65%), self-reported reasons for smoking cessation in 1,715 ex-smokers were analysed. Using cross-tables and multivariate logistic regression, associations between age, gender, and reported quitting reasons were examined. RESULTS: Men were more likely to have stopped smoking to improve physical fitness, or out of consideration for other family members than the children, and less likely to have quit out of consideration for their own children, or in solidarity with a spouse that stopped smoking. In multivariate logistic regression analysis, age was a predictor of all seven most common reasons to quit smoking. Gender, education, and the physical component of health status each predicted three of the seven quitting reasons. CONCLUSIONS: In the study sample, differences in smoking cessation behavior and reported quitting reasons were found according to both age and gender. Smoking cessation programs should be tailored to the relevant target groups, including stratification according to age and gender.

Adult↗

PubMed2003

Health and performance related reasons for wanting to quit: gender differences among teen smokers.

Adolescents frequently state health as a broad-ranging reason for wanting to quit smoking. Much less is known regarding performance-related reasons. We hypothesized that more male than female smokers want to quit for performance-related reasons (e.g., to improve athletic performance). As part of a telephone screen to determine eligibility for participation in a cessation trial in Baltimore, Maryland, 1999-2001, 509 teenage smokers [mean age 15.78 +/- 1.65 years (range 11-21), 60.9% female, 32.6% African-American] were asked the open-ended question: "Why do you want to quit?" Responses were subsequently grouped into categories that included health, performance, cost, social influences, setting an example for others, self-efficacy, cosmetics, no perceived positive reinforcement, or unknown reasons. Health was the most commonly stated primary and overall reason for wanting to quit among both boys and girls. Sixty-five percent of teen smokers endorsing health reasons were girls, and 51% of those endorsing performance-related reasons were boys (chi2(2) = 7.78, p = 0.02). Recognizing the greater concern for performance-related issues among boys is important for designing and engaging young smokers into cessation interventions.

Adolescent↗

PubMed2005

Changes in reasons given for adolescent smoking, 1984-1999.

Adolescent smoking has been widely studied, but surprisingly little research has been done about the reasons given for smoking by adolescents themselves. This study examines the reasons given by Finnish adolescents for their own smoking and the reasons that they perceive for smoking by others. It reports on how these reasons have changed over a period of 15 years. In 1984, a questionnaire about reasons for smoking was administered to a sample of adolescents aged 14-16 (N = 396). The questionnaire was administered again to a similar sample (N = 488) in 1999, when Finland adopted strict new tobacco legislation. It was found that the reasons given (i.e., attributions) had changed considerably, and that the attributions for the adolescents' own behavior were quite different from the attributions for smoking by others. The attributions were only weakly influenced by the participants' gender or by their smoking habits, either in 1984 or 1999. In relation to participants' own smoking, the later questionnaire elicited inner subjective experiences involving "good feelings." In relation to the perceived reasons for other people's smoking, it elicited more responses connected with the notion of "belonging." The limitations of the study and suggestions for further research are discussed.

Adolescent↗

PubMed1998

Psychosocial problems presented by patients with somatic reasons for encounter: tip of the iceberg?

BACKGROUND: Health-affecting psychosocial problems are inherent in general practice, present among one-third of the patients and constituting between 3 and 13% of reasons for encounter. Such problems are not always presented, and often overlooked by the doctors. OBJECTIVES: We aimed to describe the frequency of psychosocial problems presented to the doctor by patients with somatic reasons for encounter, as a proportion of the patients' existing health-affecting problems, and to explore whether characteristics of the doctor, the patient, their relationship or reason for encounter influence the presentation of problems. METHODS: A questionnaire survey of 1401 consecutive patients visiting 89 Norwegian GPs mapped the prevalence of nine commonly occurring psychosocial problems and the frequency by which they were disclosed during the consultation. RESULTS: From 21% (loneliness) to 59% (occupational stress) of problems were disclosed to the doctors. Reason for encounter was the only factor to influence the disclosure from male patients, while reason for encounter, educational level and income source of the patient, gender of the doctor, and the doctor's previous general knowledge of the patient influenced the disclosure from female patients. CONCLUSIONS: Less than half of health-affecting psychosocial problems are disclosed to GPs by patients with somatic reasons for encounter. Occupational stress is disclosed more often than other psychosocial problems. Female patients disclose non-occupational problems more often than male patients, especially if they know the doctor or if the doctor is a woman. Symptoms from the musculoskeletal system are the reasons for encounter most often preceding the disclosure of psychosocial problems.

Adolescent↗

PubMed2005

Reasons for stimulant use among Latino gay men in San Francisco: a comparison between methamphetamine and cocaine users.

The literature on drug-using gay men has documented a strong relationship between methamphetamine (MA) use and high-risk sexual practices. Of particular concern is that MA use is associated with powerful sexual effects that may facilitate the transmission of HIV. As a group, Latino gay men show high risk for HIV infection, and such risk has been related to episodes of sex under the influence of drugs. However, little information exists about stimulant use among Latino gay men, and it is not known whether MA use in this population is similarly motivated by sexual effects. This study reports reasons for stimulant use in a sample of 300 Latino gay men randomly selected from social and sexual venues; only men who reported stimulant use in the last 6 months were included in the study. Of stimulant users, 51% (n=153) reported MA, 44% (n=133) reported cocaine, and 5% (n=14) reported crack as their "most frequently used stimulant" (MFS); reasons for use were assessed for the participant's specific MFS. Reasons for stimulant use clustered by five main factors, including energy, sexual enhancement, social connection, coping with stressors, and focused work productivity. MA users gave reasons more frequently related to sexual enhancement (to have better sex, more sex, and more anal sex) whereas cocaine users gave reasons more often related to social connections (to be more sociable and to fit in with other gay men). These findings suggest that Latino gay men use stimulants for reasons that are important in their social, emotional, work, and sexual lives. Like non-Latino Whites, Latino gay men were found to rely on MA for reasons related to sexual enhancement, possibly to meet cultural expectations and norms of sexual prowess and sexual success in the gay community.

Adolescent↗