Proposal of a driver profile classification in relation to risk level in overtaking maneuvers

Traffic crashes are a worldwide problem, and records have indicated frontal collisions have resulted in the most significant number of fatalities. Such a type of crash is frequently caused by improper overtaking of vehicles, which highlights the interference of human factors. Therefore, investigations on driver's risk perception are necessary. This study proposes a classification of driver's risk level through a decision tree using the Classification and Regression Tree (CART) algorithm from data collected from the overtaking maneuvers in a driving simulator. The model obtained by CART algorithm indicated young male drivers are more likely to take risks in overtaking maneuvers. The results were correlated with governmental records and similar studies. In addition, the results showed the potential of the tool for used as a risk level classifier, as well as the validation of the driving simulator in studies associated with human factor behaviours, accident analysis and investigation.     

An investigation of expertise in cycling: Eye tracking,Think Aloud and the influence of a competitor

ObjectivesTwo studies investigated expert-novice differences in information-seeking behaviour, cognitions and performance during cycling time trials (TT). Study 1 examined trained and novice cyclist’s cognitions whilst performing a TT, using a Think Aloud (TA) protocol and eye-tracking techniques. Study 2 investigated expertise differences during alone and competitive TTs.Methodsin Study 1, six trained and seven novice cyclists performed a 16.1 km TT. In Study 2, eight trained and ten novice cyclists performed three 16.1 km TT; a baseline TT, an alone TT and a trial against a virtual competitor. In both studies, participants were asked to TA and in Study 1 they also wore mobile gaze-tracking glasses. Performance feedback and a simulated TT course were visually displayed during all trials, as was a virtual avatar during the competitor trial. Verbalisations were coded into primary and secondary themes. Cognitions and pacing strategies were compared between groups and across the duration of the TTs. In Study 1, eye-tracking data for total dwell time and gaze frequency were calculated for each area of interest (Time Elapsed, Power, Heart Rate, Cadence, Distance Covered, Speed and Course Scenery).ResultsIn Study 1, no significant differences were found in information-seeking behaviour between groups, however there were expertise differences in the cognitive strategies used. Trained cyclists’ verbalisations were more performance-relevant (i.e., power output), whereas the untrained group were more focused on task completion (i.e., distance and time) and irrelevant information. Both groups talked more about distance and motivational thoughts in the later stages of the trial, and dwell time on distance feedback also increased in this final 4 km. In Study 2, the trained group performed faster than the untrained group but there were no significant differences in pace or performance between alone and competitive TTs for either group. Differences in cognitions were found between groups and across the TT duration.ConclusionBoth studies demonstrate that cognitive processes differ as a function of expertise during self-paced cycling time trials. There were no differences in information-seeking behaviour between trained and untrained cyclists and there was no effect of an opponent on pace or performance.     

Prosocial behaviour mediates the relation between empathy and aggression in primary school children

ABSTRACT

The negative association between empathy and aggression has been widely investigated in the literature. However, the role of potential mediators and the extent to which their effects are gender-specific have been given considerably less attention. The present cross-sectional study was therefore aimed at examining the direct and indirect relations between empathy (differentiated into perspective taking and empathic concern), prosocial behaviour and aggression in a sample of 240 primary school children between 8 and 12 years of age. The results showed that perspective taking and empathic concern had indirect (rather than direct) negative effects on aggression by enhancing prosocial behaviour. These indirect paths applied equally well to boys and girls, although significant gender differences were observed in empathic concern, prosocial behaviour and aggression. Possible explanations and differences with previous studies are discussed.     

How social context moderates the self-evaluative emotions experienced due to health risk behaviour

When people are confronted with the potential negative physical outcomes of their own health risk behaviour, they experience a self-threat. This threat is felt as negative self-evaluative emotions. We hypothesise that the threat will lead to more private self-evaluative emotions (e.g. regret) in a private social context, whereas more public self-evaluative emotions (e.g. embarrassment) will be felt in a public social context with negative norms. Consistent with our hypotheses, we show that participants anticipate feeling more private self-evaluative emotions when confronted with the negative consequences of their unhealthy behaviour when alone, and more public self-evaluative emotions when in a group (Study 1). They further anticipate more public self-evaluative emotions in response to a health self-threat when the group norm is negative, and more private self-evaluative emotions when the group norm is lenient (Study 2). Finally, in a cross-sectional study amongst smokers, we show that private but not public negative self-evaluative emotions concerning their own smoking habits are positively correlated with the intent to quit smoking (Study 3). These studies show that a distinction needs to be made between public and private self-evaluative emotions, in terms of their antecedents and effects. Theoretical implications and further lines of research are discussed.     

Respect for the Dignity of People: What Does This Principle Mean in Practice?

Researchers have found that disrespectful behaviour can have a notable psychological impact on victims and observers thereof. It is not surprising, therefore, that law and all the major psychology codes of ethics acknowledge the principle of respect for the dignity of persons. The practical implications of this principle, however, are not clear. In this article we argue, with reference to the philosophical roots of the principle, that there are rules of manners in all societies that describe how people should demonstrate respect for persons. Generally, the profession cannot require psychologists to adhere to the rules of manners, not even those that demonstrate respect for persons, but it can, and does, prescribe to psychologists how they should act while they practice as psychologists. We proceed to examine the principles and standards of the Australian Psychology Society's Code of Ethics (2007) that require psychologists to demonstrate respect for persons while acting as psychologists.