Consequence of Self Versus Externally Generated Visual Motion on Postural Regulation

A limiting factor in the use of virtual environments to examine perception and action is that it is dependent on the quality of the interaction. A virtual reality game (first-person viewpoint with moderate difficulty) was used to investigate the link between control and postural regulation. Postural regulation was examined using a motion capture system, and the differences that emerged as a result of the participant being a passive observer versus an active participant were evaluated using a fractal procedure: dispersion analysis. A significant interaction was found between control and health, namely, participants' postural behavior tended to be less uniform when they were sick and when they were in control of the environment. These results lead the authors to suggest that successful interaction with novel environments depends on the ability to find and consistently use appropriate control strategies.     

Psychopathic traits and men’s anger response to interpersonal conflict: A pilot study

Psychopathy is associated with emotional dysfunction that impedes the experience of emotions such as fear and sadness and has been purported to facilitate violent behavior. However, findings relative to the association between psychopathy and anger have not been reliably substantiated. Theorists have proposed that psychopathy predisposes one to experience greater frustration and anger, whereas other experts have suggested that there is no convincing evidence for this assertion. In the present study, we tested the relationship between psychopathy subfactors and anger subsequent to conflict or non-conflict interactions. Sixty-eight collegiate-men completed the Self-Report Psychopathy Scale and read vignettes depicting either a conflict or non-conflict scenario and were asked to imagine themselves in the situation. Following presentation of the vignettes, participants completed a lexical-decision-task assessing affective states. Results indicated that the psychopathy subfactors demonstrated strong differential associations, where Factor 1 showed negative and Factor 2 showed positive association with anger activation in response to interpersonal conflict. Findings are discussed in terms of the importance of anger as a facilitator of violence in some psychopathic individuals.     

The relationship between mental vitality and cardiovascular health

Past measurement of vitality has included both emotional and physical components. Since aspects of physical vitality such as fatigue can be indicative of physical illness, the usefulness of existing measures of vitality to predict health is limited. This research was designed to examine the psychometric properties of a new Mental Vitality Scale and to test its associations with measures of cardiovascular health over the course of 2 years. The measure of mental vitality was administered in a two-part study using three different samples. In part 1, the reliability and validity of the scale was assessed with a student and a clinic sample. In part 2, medical data on mental and physical health were abstracted over a two-year period from 1041 patient records from a multi-specialty medical practice, and mental vitality assessed through a mailed questionnaire. The findings indicate that the Mental Vitality Scale is a valid and reliable questionnaire for measuring this construct. Mental vitality was also associated with reduced odds of several cardiovascular outcomes and prospective analyses suggest that mental vitality may serve a protective function in the development of cardiovascular disease. The results lend support for the importance of mental vitality as a construct that may be relevant for considering resilience in relation to cardiovascular disease.     

The prediction of safe sex behaviour: The role of intentions,attitudes, norms and control beliefs

Abstract

The present study was designed to examine the utility of the theory of reasoned action (Fishbein and Azjen, 1975) in relation to people's propensity to engage in a range of different safe sex strategies, including engaging in an exclusive sexual relationship, avoiding casual sex, and asking sexual partners about their previous sexual and IV drug use history. It was proposed that the intention to engage in a particular safe sex practice would be influenced by the person's attitude towards engaging in the practice, as well as his or her perception of the extent to which others thought they should do so (subjective norm), while behavioural intentions were proposed to predict actual behaviour. The study was also designed to examine whether, after control of the effects of the components of the theory of reasoned action, the person's generalised control beliefs would explain any additional variance in either behavioural intentions or actual behaviour. One hundred and two sexually active heterosexual students participated in the study. At the first wave of data collection, subjects completed measures of intentions, attitudes, and norms appropriate to each of the different behaviours. Measures of actual behaviour were obtained at follow-tip (three months after first period of data collection). The results of the study indicated that attitudes and norms predicted intentions for avoiding casual sex and asking sexual partners about their previous sexual and IV drug use history, while intentions predicted actual behaviour for all three safe sex strategies. Although there were no significant main effects of control beliefs on intentions or behaviour, subjects with internal control beliefs were more likely than their counterparts with external control beliefs to behave in accordance with their intentions to engage in an exclusive sexual relationship and ask sexual partners about their previous sexual and IV drug use history. Additional analyses revealed that the levels and determinants of intentions and actual behaviour were, in general, similar for males and females.     

Environments as reinforcer systems in the study of job satisfaction

This paper examined differences in the degree to which fifteen specific sources of job satisfaction were related to and predictive of the overall satisfaction of department chairmen in the six model environments proposed by Holland (1973). The fifteen specific sources of job satisfaction were regressed on overall satisfaction, separately for chairmen in each environment, through the use of incremental stepwise multiple regression procedures. The results indicated that the overall satisfaction of chairmen in these six environments was differentially related to unique weightings and combinations of the fifteen predictor variables. It was concluded that environments, composed of essentially similar groups of people in different organizations, serve as job satisfaction reinforcer systems in a manner similar to organizations as illustrated by Dawis.     

Archbishop Wulfstan and the importance of paying God his dues

Archbishop Wulfstan of York (d. 1023) stands as one of the most powerful churchmen of his age. His sermons, law-codes, and political tracts are carefully crafted pieces of rhetorical power, albeit often prone to exergasia, anaphora, and epiphora. They are excellent examples of the quality and power of episcopal prose in the eleventh century, and the very real concerns facing the Anglo-Saxon realm. Beyond the enduring appeal and colourful flavour of his writings, it is possible to see a very determined effort to demand from the lay population a large number of payments for the service of the Church. Whilst this may appear a rather narrow-minded focus, certainly in a time of war and invasion, it will be argued here that for Wulfstan they offered a vehicle by which disaster could be averted, society could be aligned along proper Christian lines, and the nation itself could be saved.     

Age group differences in self-reported aggressive driving perpetration and victimization

Aim

This study examined whether the predictors of self-reported aggressive driving perpetration and victimization vary across age groups.

Method

Based on data from a general-population telephone survey conducted from July 2002 through June 2005, three groups of drivers were examined: 18–34 year-olds (N = 1522), 35–54 year-olds (N = 2726), and 55 years of age or older (N = 1883). For each age group sample, logistic regression analyses examined self-reported aggressive driving perpetration and victimization in the last 12 months by measures of driving exposure, heavy drinking, cannabis use, and drinking-driving, while controlling for demographic factors.

Results

The prevalence of aggressive driving perpetration within the past year was highest for the youngest age group (51%), followed by the middle-aged group (37%), and then the oldest age group (18%). The same pattern of results was found for prevalence of aggressive driving victimization (54%, 47%, and 31%, respectively). Controlling for demographic factors, the predictors of perpetration were generally consistent across the age groups. The logistic regression model for the youngest drivers revealed that those who reported stressful driving, heavy drinking, and cannabis use had significantly increased odds of reporting perpetration of aggressive driving. For middle-aged and older drivers, stressful driving, driving on busy roads, cannabis use, and driving after drinking were associated with perpetration. In addition, increased mileage contributed to perpetration in the oldest group. The findings for victimization by aggressive driving were similar. The logistic regression model for the youngest age group identified stressful driving, cannabis use, and higher annual mileage as being associated with victimization. For the oldest age group, these same variables were significant predictors of victimization, in addition to driving on busy roads. The logistic regression for the middle-aged group identified the same predictors as that of the oldest age group; however, interestingly driving after drinking was found to predict lower victimization among middle-aged drivers.

Conclusions

Although the prevalence of aggressive driving perpetration and victimization declined with age, the factors that contributed to aggressive driving remained generally stable across the lifespan. The results suggest that efforts to reduce aggressive driving among young drivers may prove to be effective for drivers from all age groups.