The Hippocratic Oath,Medical Power,and Physician Virtue

Philosophia - In this paper, I supplement T. A. Cavanaugh’s arguments against physician-assisted suicide in his book, Hippocrates’ Oath and Asclepius’ Snake, by focusing more...     

The mediators of minority ethnic underperformance in final medical school examinations

Background. UK‐trained medical students and doctors from minority ethnic groups underperform academically. It is unclear why this problem exists, which makes it difficult to know how to address it. Aim. To investigate whether demographic and psychological factors mediate the relationship between ethnicity and final examination scores. Sample. Two consecutive cohorts of Year 5 (final year) UCL Medical School students (n= 703; 51% minority ethnic). A total of 587 (83%) had previously completed a questionnaire in Year 3. Methods. Participants were administered a questionnaire in 2005 and 2006 that included a short version of the NEO‐PI‐R, the Study Process Questionnaire, and the General Health Questionnaire (GHQ) as well as socio‐demographic measures. Participants were then followed up to final year (2007–2010). White and minority ethnic students’ questionnaire responses and final examination grades were compared using univariate tests. The effect of ethnicity on final year grades after taking into account the questionnaire variables was calculated using hierarchical multiple linear regression. Results. Univariate ethnic differences were found on age, personality, learning styles, living at home, first language, parental factors, and prior education. Minority ethnic students had lower final exam scores, were more likely to fail, and less likely to achieve a merit or distinction in finals. Multivariate analyses showed ethnicity predicted final exam scores even after taking into account questionnaire factors. Conclusions. Ethnic differences in the final year performance of two cohorts of UCL medical students were not due to differences in psychological or demographic factors, which suggests alternative explanations are responsible for the ethnic attainment gap in medicine.     

The development of visual short-term memory for multifeature items during middle childhood

Visual short-term memory (VSTM) research suggests that the adult capacity is limited to three or four multifeature object representations. Despite evidence supporting a developmental increase in capacity, it remains unclear what the unit of capacity is in children. The current study employed the change detection paradigm to investigate both the capacity and nature of the representations of VSTM in 7-year-olds, 10-year-olds, and adults. Two experimental conditions were used to compare memory performance for single-feature objects with that for multifeature objects. Results provided further and more convincing evidence for a developmental increase in VSTM. Furthermore, the “loading up” of features in the multifeature condition was found to incur no significant performance deficit in all age groups. These findings are explained in terms of a developmental increase in the number of integrated multifeature object representations in VSTM.     

Sex differences in components of imagined perspective transformation

We explored the impact of motor experience on the interaction between implicit motor simulation and language-processing. In an action familiarity judgment task, expert volleyball players, fans and novices were presented with semantically correct sentences describing possible and not possible motor actions, all as negative or positive contexts, e.g., "Don't shank!" or "Assist!". As processing negated action-phrases is known to reduce simulation states, exposure to negative or positive contexts was used here to test how simulation varies according to motor feasibility (possible, impossible) and experience (experts and fans). A significant group×stimulus×context interaction showed that athletes and fans, took longer to process negative than positive contexts for possible actions, compared to action-impossible sentences. In addition, experts were significantly faster and more accurate than fans and, in turn, they were both more accurate than novices. Thus, implicit motor simulation impacts on action-verb processing depending on (i) the domain-relevant expertise, (ii) the feasibility of the actions, and (iii) on whether scenes are presented in a negated context. These results suggest that the implicit triggering of motor representations is modulated by the context and it is tuned to people's motor repertoire, even when actions are described linguistically.     

The relationship between retrieval-induced forgetting, anxiety, and personality

Abstract Retrieval-induced forgetting (RIF) refers to the finding that the retrieval of a memory trace suppresses the retrieval of rival memory traces, and there is evidence that RIF reflects the effects of cognitive inhibition. The Attentional Control Theory (ACT) postulates that cognitive inhibition will be impaired by a high level of state anxiety, but the effect of anxiety on RIF has not previously been investigated. A sample of 116 participants were tested on the RIF procedure, and were also administered the Spielberger State Anxiety Inventory and the Big Five Personality Inventory. The results indicated a significant negative correlation between RIF scores and state anxiety, and a significant positive correlation between RIF scores and extraversion. However, a multiple regression analysis identified extraversion as the main predictor of RIF performance. None of the other personality factors correlated with RIF scores. These findings are consistent with the predictions of the ACT.     

The community alcohol use scale: A scale for use in prevention programs

The Community Alcohol Use Scale (CAUS) was developed as a continuous, reliable, valid, and acceptable measure for primary prevention studies. Items were written following a comprehensive review of the literature on alcohol dependence and alcoholism. Based upon the responses of 315 respondents to the 100-item initial version of the scale, the 45-item CAUS was developed. The CAUS was then cross-validated on a local sample (n = 274) and a provincial sample (n = 745). Estimates of internal consistency were .91, .96, and .94, respectively, for the initial and cross-validation samples. Correlations of .48 and .69 were obtained between the CAUS and the Michigan Alcohol Screening Test for the initial and local cross-validation samples. In the provincial cross-validation sample a correlation of .62 was obtained between the CAUS and the Usual Weekly Alcohol Index. Preliminary cutting scores were developed to identify those at risk for alcoholism, and alcoholics. The CAUS has potential use as an evaluative and predictive instrument in a variety of primary prevention programs.     

The effects of television form and violent content on boys' attention and social behavior

An experiment is reported that examined the independent effects of television content (violence) and television formal features (action level) on children's attention to programs and their postviewing social behavior. Pairs of preschool boys participated in two experimental sessions in which they saw animated and live television programs that varied in violent content (high or low) and formal features (high or low action level). They then played with toys that contained cues for either aggressive or prosocial interaction. Rapid character action facilitated visual attention to the programs; violent tv content did not facilitate attention. On measures of social behavior, strong effects of toy cues were found independently of television treatment effects. Aggressive toys produced aggressive behavior, and prosocial toys produced prosocial behavior; these patterns included some nonspecific, generalized influences in addition to direct demands of the play materials. Violent tv content led to changes in subjects' style of interaction and was also associated with increases in some prosocial behaviors. Television action level had no systematic effects on subjects' behavior. Results are discussed within the theoretical frameworks of observational learning and general arousal. Implications for children's television programming are also discussed.     

Ogden R. Lindsley and the historical development of precision teaching

This paper presents the historical developments of precision teaching, a technological offshoot of radical behaviorism and free-operant conditioning. The sequence progresses from the scientific precursors of precision teaching and the beginnings of precision teaching to principal developments since 1965. Information about the persons, events, and accomplishments presented in this chronology was compiled in several ways. Journals, books, and conference presentations provided the essential information. The most important source for this account was Ogden Lindsley himself, because Lindsley and his students established the basic practices that define precision teaching.     

Truthfulness in transplantation: non-heart-beating organ donation

The current practice of organ transplantation has been criticized on several fronts. The philosophical and scientific foundations for brain death criteria have been crumbling. In addition, donation after cardiac death, or non-heartbeating-organ donation (NHBD) has been attacked on grounds that it mistreats the dying patient and uses that patient only as a means to an end for someone else's benefit.     

My Friends Are My Estate: Friendship Experiences Mediate the Relationship Between Perceived Responses to Capitalization Attempts and Happiness

Emerging adults share the positive events in their lives with their friends, a process that is related to higher levels of happiness when they perceive their friends’ responses as more positive and less negative. What might explain this association? The four studies (N = 2997) in this research tested the proposal that positive friendship experiences mediate the relationship between perceived responses to capitalization attempts (PRCA) and happiness. Study 1 showed that same-sex friendship quality mediated the relationship between PRCA and happiness. Study 2 supported the model for cross-sex friendships. Study 3 tested the generalizability of the model for the immediate social network of emerging adults and showed that the model was only applicable to best friendships. Study 4 documented that satisfaction of basic psychological needs in a same-sex friendship was another mediator of the PRCA-happiness link. Although the friendship experiences and PRCA scores of women were higher compared to men in every study, the associations of PRCA with friendship experiences and happiness were generally similar and the model was supported for both men and women. The implications of the findings were discussed and suggestions for future research were provided.