Differentiated forgetting rates of spatial knowledge in humans in the absence of repeated testing

Spatial knowledge, necessary for efficient navigation, comprises route knowledge (memory of the landmarks along a route) and survey knowledge (map-like). Available data on the retention in humans of spatial knowledge show that this does not decline systematically over months or years. Here, two groups of participants elaborated route and survey knowledge during navigation in a complex virtual environment before performing route and survey tasks. Both groups were tested 5 minutes after learning and 3 months later, while one group was also tested 1 week and 1 month later (repeated testing). Performance was similar in both groups on the first testing session, remained stable in the repeated tested group, but decreased in the non-repeated tested group, especially on route tasks. These results are the first to reveal a substantial and selective decline of spatial knowledge, occurring only if there is no possibility of reactivating knowledge along repeated testing.     

Tests improve memory – no matter if you feel good or bad while taking them

ABSTRACT

Based on studies demonstrating that testing promotes better long-term retention than restudying (i.e., the testing effect), testing has been recommended as a powerful tool to boost knowledge acquisition in educational settings. However, a factor ubiquitous in real-life learning contexts has been ignored to date: the learner's affective state. To examine whether the learner's affective state influences the testing effect, we conducted two experiments. We employed a standard testing-effect paradigm consisting of an initial study phase and a subsequent restudy/testing phase, and induced negative, neutral, or positive affective states either before participants initially studied short expository texts (Experiment 1) or before they restudied or were tested on them (Experiment 2). After one week, memory for the texts was tested. In both experiments, previously tested material was better remembered than previously restudied material. However, in none of the experiments, did the memory advantage of testing over restudying vary as a function of affect condition. Hence, the present results suggest that testing seems to benefit long-term retention independently of the learner's affective state.     

Object specificity and personal relevance in long-term visual remembering

The personal relevance of an object is multi-faceted, each facet being capable of contributing to the effects on object memory attributed to personal relevance. An object's status as an individual object (object specificity), rather than just a category of object, is one such facet and its impact on the long-term visual remembering of everyday objects is assessed in two experiments. Images and drawings were produced under generic (e.g., “Please draw a bed”) and personal exemplar (e.g., “Please draw your bed”) instructions, and participants indicated the degree to which the image on which their drawing was based was of a specific object or a generic object. Object specificity induced a sense of time and place for a remembered object, the most recent encounter with the object being most salient. Other aspects of personal relevance collectively facilitated the retrieval of an object's category-irrelevant features (thereby increasing the vividness of the object image), the other objects with which it was seen, and a more general episodic sense of place. Against a broader theoretical perspective, it is proposed that visual episodic memory and visual knowledge are primary sources of information for specific personally relevant objects and generic objects, respectively.     

An evaluation of the UK government health education campaign on AIDS

In the absence of an effective treatment for HI V the only means of containing its spread is through changes in behaviour. Health education is a key route for achieving this. To be effective, a health education campaign must result in behaviour change. The United Kingdom Department of Health and Social Security has attempted to address these needs in a recent health education campaign, which took the form of whole page newspaper advertisements in the national press. Groups of higher and lower risk subjects were questioned before and after the campaign. The desire for information was high and the vast majority of respondents named the medical profession as the desired source to turn to. 31.1% of the lower risk group and 50% of the higher risk group noticed and read the campaign. Information scores were slightly increased but the campaign had no effect on adjusting misconceptions and anxiety was not lowered. Attitudes and behaviour were unaltered. These results are discussed in the light of a content analysis of the campaign.     

The utility of socio-demographics,knowledge and health belief model variables in predicting reattendance for mammography screening: A brief report

Abstract

The aims of the present study were to investigate socio-demographic and knowledge variables as predictors of re attendance for mammography screening and to examine the utility of the Health Belief Model (HBM) in predicting reattendance for mammography screening above and beyond socio-demographic and knowledge variables. A total of 88 reattenders and 44 non-reattenders of an Australian breast screening service completed a questionnaire assessing socio-demographics (age, marital status, education, physician recommendation and family history), knowledge and HBM variables. Results showed that reattenders were more likely to be older, married and report physician involvement than non-reattenders. Family history and knowledge did not significantly predict reattendance. Of the HBM variables, perceived benefits was related to reattendance above and beyond socio-demographics. Results support the utility of the HBM as a focus for improving regular attendance for breast screening. It is concluded that non-reattenders should be investigated as a seperate group to women who have never attended for mammography screening.     

Psychological models in predicting uptake of prenatal screening

Abstract

The purpose of the current study was to determine which psychological models are most useful in predicting uptake of a prenatal screening test, maternal-serum alphafetoprotein screening for spina bifida and Down's syndrome. 1000 women eligible for the test completed standardised self-report questionnaires at two routine clinic visits to an antenatal clinic prior to the time when the test could take place. 902 underwent the screening test; 51 declined the test; and 47 did not undergo the test, giving no reason for this to staff. Knowledge of the test, the subjective expected utility attached to the test, and attitudes to doctors and medicine were all significant predictors of uptake behaviour. Results of a discriminant function analysis demonstrated distinct psychological processes underlying each of these three uptake behaviours, explaining 21% of the variance in uptake of screening. If uptake of screening is examined not as a dichotomous variable but as a group of behaviours, predictive models are identified accordingly. This would lead to rnodels of health-related behaviours as a heterogeneous rather than homogeneous phenomena, predicted and influenced by different causes.     

Knowledge of drug-related health problems among injecting drug users: Implications for the transmission of HIV infection

Abstract

In a project that investigated the HIV-related risk behaviour of injecting drug users, respondents were categorized along dimensions of expertness in HIV/AIDS knowledge and knowledge about drug-related health problems. Knowledge about drug-related health problems was found to be significantly associated with sharing. Better informed respondents were less likely to share injecting equipment and to predict they would share in future. They were more likely to adopt consistent injecting hygiene, seek information about AIDS, and perceive themselves as in control of their lives. No significant relationships were observed between sharing and HIV/AIDS knowledge. The data have relevance for AIDS educational strategies, since knowledge about AIDS and HIV transmission appears to be insufficient to induce behavioural change. Greater emphasis on the health problems that afflict most injectors may be a way of encouraging general harm minimization.     

Psychological and social characteristics of attenders for breast screening

Abstract

Demographic characteristics, health behaviour and knowledge of breast cancer were assessed in 183 women from a regional breast screening unit and compared with those of 182 women from a breast clinic and 41 control subjects. A questionnaire yielded information on (i) demographic characteristics and cancer-related behaviours including breast self-examination (BSE), use of screening and promptness of presentation of breast symptoms in the clinic group, (ii) the extent and effects of knowledge about breast cancer and (iii) the role of Health Belief Model dimensions. Results showed the screening unit attenders to be significantly older and to be significantly more likely to be from higher social classes. Differences between the groups in health beliefs and knowledge did not remain once the effects of age and social class were partialled out. While attitudes towards BSE and its practice related to health beliefs. only a minority of the women indicated that they practised BSE with any regularity. The results suggest that screening is failing to attract a truly representative sample of the community and raise the possibility that this failure is a consequence of sociological as much as psychological factors.     

Deliberation Versus Intuition: Decomposing the Role of Expertise in Judgment and Decision Making

What produces better judgments: deliberating or relying on intuition? Past research is inconclusive. We focus on the role of expertise to increase understanding of the effects of judgment mode. We propose a framework in which expertise depends on a person's experience with and knowledge about a domain. Individuals who are relatively experienced but have modest knowledge about the subject matter (“intermediates”) are expected to suffer from deliberation and to benefit from a more intuitive approach, because they lack the formal knowledge to understand the reasons underlying their preferences. Individuals who are high (“experts”) or low (“novices”) on both experience and knowledge are expected to do well or poorly, respectively, regardless of decision mode. We tested these predictions in the domain of art. Experiments 1 and 2 showed that intermediates performed better when relying on intuition than after deliberation. Judgments of experts and novices were unaffected. In line with previous research relating processing style to judgment mode, Experiment 3 showed that the effect of processing style (global versus local) on judgment quality is similarly moderated by expertise. Copyright © 2012 John Wiley & Sons, Ltd.     

On the Road to the Unconscious Self: Understanding when People Gain Self‐knowledge of Implicit Disgust Sensitivity from Behavioural Cues

On the basis of an integration of dual‐process models of information processing and the lens model framework of person perception, we conducted two studies to investigate whether self‐perceivers could detect their implicit disposition from video feedback of behavioural cues and whether these cues were used for explicit dispositional inferences under conditions that maximized the presumed self‐perception process. Using an approach that differed from previous research, we used the following: (i) a more detailed and stepwise self‐perception procedure; (ii) a specific explicit measure compared with a global explicit measure; and (iii) disgust sensitivity as a domain with clear, unambiguous cues and an assumed low self‐presentation bias. The results from two studies (N = 117 and N = 130) on disgust sensitivity provide the first evidence for the assumed process with regard to bodily reaction cues but not with regard to facial expression cues. These novel findings suggest that people can get to know their unconscious selves better if supporting conditions are met and the right behavioural cues are attended to. Additional boundary conditions of this self‐perception process were investigated using display rules and need for closure in Study 2. Copyright © 2013 John Wiley & Sons, Ltd.