Information constraints in medical encounters

This article describes three kinds of information constraints in medical encounters that have not been discussed at length in the medical ethics literature: constraints from the concept of a disease, from the diffusion of medical innovation, and from withholding information. It describes how these limit the reliance rational people can justifiably put in their doctors, and even the reliance doctors can have on their own advice. It notes the implications of these constraints for the value of informed consent, identifies several procedural steps that could increase the value of the latter and improve diffusion of innovation, and argues that recognition of these constraints should lead us to devise protections which intrude on but can improve these encounters.     

Phonological underspecification and mapping mechanisms in the speech recognition lexicon

The problem of recognizing phonological variations in the speech input has triggered numerous treatments in speech processing models. Two areas of current controversy are the possibility of phonological underspecification in the mental lexicon and the nature of the mapping mechanism from the speech signal to the abstract lexical entry. We present data from cross-modal repetition priming experiments in English designed to test the differing predictions of speech recognition models regarding tolerance of phonological mismatch in speech. The results show effects of underspecification, supporting models using underspecified lexical entries (e.g. Lahiri & Marslen-Wilson, 1991; Reetz & Lahiri, 2001) over those using fully specified lexical entries (e.g., McClelland & Elman, 1986). The results also show no effects of context, thus favoring context-independent mapping, such as that in the three-way matching mechanism of the Lahiri and Reetz FUL model ( Lahiri, 1999; Reetz, 1998 and Reetz, 1999; Reetz & Lahiri, 2001) over context-dependent mapping used in phonological inference rules ( Gaskell and Marslen-Wilson, 1996 and Gaskell and Marslen-Wilson, 1998).     

Engineering Ethics: Looking Back, Looking Forward

The eight pieces constituting this Meeting Report are summaries of presentations made during a panel session at the 2011 Association for Practical and Professional Ethics (APPE) annual meeting held between March 3rd and 6th in Cincinnati. Lisa Newton organized the session and served as chair. The panel of eight consisted both of pioneers in the field and more recent arrivals. It covered a range of topics from how the field has developed to where it should be going, from identification of issues needing further study to problems of training the next generation of engineers and engineering-ethics scholars.     

The Forgotten Ones: Siblings of Substance Abusers

Although factors shaping sibling relationships and the developmental dynamics of such consanguinity have been addressed by various scholars, investigations questioning how the risky behaviors of one sibling, specifically substance abuse, may impact brothers versus sisters are few. The current study explored non–substance-abusing siblings’ reports of their mood, attitudes, feelings of social support, and emotions if one of their brothers or sisters was perceived to be a substance abuser. Surprisingly, 22% of a college-aged convenience sample (N = 312) described one or more of their siblings as a substance abuser and reported being exposed to drugs at an earlier age than their non–substance-abusing counterparts, in addition to other differences. Sisters, more than brothers, were also affected. These exploratory findings, although limited by potential sampling bias, highlight potential areas for future research that could clarify and perhaps improve the experience of the “forgotten” siblings in a risky family constellation.     

Social genomics: genomic inventions in society. The nature of what's to come

This paper identifies several kinds of intellectual mistakes that proponents of genetic engineering make, in defending their views and characterizing the views of their opponents. Results from research in the social sciences and humanities illuminate the nature of these mistakes. The mistakes themselves play a role in allowing proponents to gather support from other protagonists in the social controversies involving science and technology. Understanding the controversies requires understanding that innovations are components of complex and ill-structured social problems; the "right answer" does not follow from scientific or technological breakthroughs. If the problems are identified correctly, issues of non-economic or non-market values and political and individual rights will need to be addressed.     

On Muddled Reasoning and Mediation Modeling

The hope of mediation modeling is that psychologists can go beyond tests of association to truly uncover mechanisms of change. We argue this hope can be realized only if psychologists make important distinctions regarding causality and inference. From the perspective of Aristotelian philosophy, mediation models are sequences of efficient causes, and psychologists should therefore seek to identify those persons who can be traced through the entire sequence successfully. By reanalyzing data from two mediation studies we demonstrate that contemporary, aggregate methods of analysis are not suitable for this task because they are instead focused on making inferences about population parameters. In both studies alternative, person-centered methods revealed that majorities of participants were not traceable through the statistically significant mediation models.