The evolution of Crew Resource Management training in commercial aviation

In this study, we describe changes in the nature of Crew Resource Management (CRM) training in commercial aviation, including its shift from cockpit to crew resource management. Validation of the impact of CRM is discussed. Limitations of CRM, including lack of cross-cultural generality are considered. An overarching framework that stresses error management to increase acceptance of CRM concepts is presented. The error management approach defines behavioral strategies taught in CRM as error countermeasures that are employed to avoid error, to trap errors committed, and to mitigate the consequences of error.     

Health researchers' ancillary care obligations in low-resource settings: how can we tell what is morally required?

Health researchers working in low-resource settings often encounter serious unmet health needs among participants. What is the nature and extent of researchers' obligations to respond to such needs? Competing accounts have been proposed, but there is no independent standard by which to assess them or to guide future inquiry. I propose an independent standard and demonstrate its use. In conclusion I recommend two areas of focus for future inquiry: what makes an account of researchers' obligations reasonable from the standpoint of both participants and researchers and how general duties of rescue apply to researchers' resource-allocation decision making in low-resource settings.     

Maximizing the impact of exposure to scientific role models: Testing an intervention to increase science identity among adolescent girls

A field experiment tested an intervention to maximize the impact of a science outreach program by encouraging early adolescent girls (N = 240, M_age =12) to adopt female role models. Girls participated in workshops led by female role models who were scientific experts in their field. Afterward, they were randomly assigned to choose and write about their favorite workshop leader or to write about the first workshop leader. We hypothesized that the intervention would benefit girls who chose and wrote about a favorite leader. However, girls in both conditions experienced significant increases in science identity. Girls demonstrated strong role model identification with the workshop leaders; moreover, role model identification was associated with increases in science identity. Girls in the chosen leader condition focused on her competence and supportiveness more than girls in the assigned leader condition. There was no difference in science identity between girls from well-represented and underrepresented minority (URM) ethnic groups in scientific fields. URM girls, surprisingly, identified more with the workshop leader than well-represented girls. Science workshops led by female role models with relevant expertise may facilitate science identification among early adolescent girls from diverse ethnic backgrounds.     

Episodic representations support early semantic learning: evidence from midazolam induced amnesia

Current controversy exists regarding the role of episodic representations in the formation of long-term semantic memories. Using the drug midazolam to induce temporary amnesia we tested participants' memories for newly learned facts in a semantic cue condition or an episodic and semantic cue condition. Following midazolam administration, memory performance was superior in the episodic and semantic condition, suggesting early semantic learning is supported by episodic representations.     

Do monkeys think in metaphors? Representations of space and time in monkeys and humans

Research on the relationship between the representation of space and time has produced two contrasting proposals. ATOM posits that space and time are represented via a common magnitude system, suggesting a symmetrical relationship between space and time. According to metaphor theory, however, representations of time depend on representations of space asymmetrically. Previous findings in humans have supported metaphor theory. Here, we investigate the relationship between time and space in a nonverbal species, by testing whether non-human primates show space–time interactions consistent with metaphor theory or with ATOM. We tested two rhesus monkeys and 16 adult humans in a nonverbal task that assessed the influence of an irrelevant dimension (time or space) on a relevant dimension (space or time). In humans, spatial extent had a large effect on time judgments whereas time had a small effect on spatial judgments. In monkeys, both spatial and temporal manipulations showed large bi-directional effects on judgments. In contrast to humans, spatial manipulations in monkeys did not produce a larger effect on temporal judgments than the reverse. Thus, consistent with previous findings, human adults showed asymmetrical space–time interactions that were predicted by metaphor theory. In contrast, monkeys showed patterns that were more consistent with ATOM.     

Virtue Ethics and Situationist Personality Psychology

In this paper I examine and reply to a deflationary challenge brought against virtue ethics. The challenge comes from critics who are impressed by recent psychological evidence suggesting that much of what we take to be virtuous conduct is in fact elicited by narrowly specific social settings, as opposed to being the manifestation of robust individual character. In answer to the challenge, I suggest a conception of virtue that openly acknowledges the likelihood of its deep, ongoing dependence upon particular social relationships and settings. I argue that holding this conception will indeed cause problems for some important strands of thought in virtue ethics, most notably in the tradition of Aristotle's Nicomachean Ethics. But an approach to virtue ethics modeled on David Hume's treatment of virtue and character in A Treatise of Human Nature promises to escape these problems.     

Effects of word frequency on individual-item and serial order retention: Tests of the order-encoding view

The order-encoding view of the word frequency effect proposes that low-frequency (LF) items attract more attention to the encoding of individual-item information than do high-frequency (HF) items, but at the expense of order encoding (DeLosh & McDaniel, 1996). When combined with the assumption that free recall of unrelated words is organized according to their original order of presentation, this view explains the finding that HF words are better recalled than LF words in pure lists but that, in mixed lists, recall is better for LF words. The present study confirmed that in mixed lists, order memory becomes equivalent for HF and LF words and that the predicted pattern of order memory and recall holds fo r incidental order-encoding conditions, for longerlists than those used inprevious experiments, and for lists with minimal interitem associativity. Moreover, recall from HF lists declined, but recall from LF lists improved, in related-word lists, relative to unrelated-word lists, reversing the usual pure-list free recall advantage for HF words. These results were uniquely predicted by the order-encoding account and favor this view over accessibility, interitem association, and cuing effectiveness explanations of the word frequency effect.     

Evidence That Episodic Memory Impairment During Tobacco Abstinence Is Independent of Attentional Mechanisms

Previous studies have demonstrated reductions in episodic memory during nicotine withdrawal. However, these studies have been unable to dissociate memory reductions from losses in attention associated with tobacco abstinence. In the present study, the authors sought to determine whether episodic memory reduction is a primary effect of nicotine withdrawal during tobacco abstinence. Heavy smokers were tested when smoking normally and following 24 hrs of abstinence. Participants were tested with a recognition memory task in which items were studied under full and divided attention conditions. Forward digit span and backward digit span were also included as control measures. Withdrawal was associated with a reduction in memory performance that was independent of attention at encoding. The authors conclude that impairment of episodic memory is a primary effect of nicotine withdrawal during tobacco abstinence. Further research is required to determine if this is associated with continued use of tobacco and cessation failures.