A number of theoretical positions in psychology—including variants of case‐based reasoning, instance‐based analogy, and connectionist models—maintain that abstract rules are not involved in human reasoning, or at best play a minor role. Other views hold that the use of abstract rules is a core aspect of human reasoning. We propose eight criteria for determining whether or not people use abstract rules in reasoning, and examine evidence relevant to each criterion for several rule systems. We argue that there is substantial evidence (...) that several different inferential rules, including modus ponens, contractual rules, causal rules, and the law of large numbers, are used in solving everyday problems. We discuss the implications for various theoretical positions and consider hybrid mechanisms that combine aspects of instance and rule models. (shrink)

This paper proposes that billing gamesmanship occurs when physicians free-ride on the billing practices of other physicians. Gamesmanship is non-universalizable and does not exercise a competitive advantage; consequently, it distorts prices and allocates resources inefficiently. This explains why gamesmanship is wrong. This explanation differs from the recent proposal of Heath (2020. Ethical issues in physician billing under fee-for-service plans. J. Med. Philos. 45(1):86–104) that gamesmanship is wrong because of specific features of health care and of health insurance. These features are (...) aggravating factors but do not explain gamesmanship’s primary wrong-making feature, which is to cause diffuse harm not traceable to any particular patient or insurer. This conclusion has important consequences for how medical schools and professional organizations encourage integrity in billing. To avoid free-riding, physicians should ask themselves, “could all physicians bill this way?” and if not, “does the patient benefit from the distinctive service I am providing under this code?” If both answers are “no,” physicians should refrain from the billing practice in question. (shrink)

Loss of personal identity in dementia can raise a number of ethical considerations, including the applicability of advance directives and the validity of patient preferences that seem incongruous with a previous history of values. In this chapter, we first endorse the self-concept view as the most appropriate approach to personal continuity in healthcare. We briefly describe two different types of dementia, Alzheimer’s dementia (AD) and behavioral-variant frontotemporal dementia (bv-FTD). We identify elements considered important for the continuation of a self-concept, including (...) continuation of memories, consistency in personality traits and personal preferences, and continued endorsement of certain moral tenets. We show that, depending on which element is considered most important for personal identity, continuity of a self-concept for individuals with distinct types of dementia will be affected and assessed differently. Utilizing a variety of empirical evidence, we argue that persistence of memory, personality traits, and preferences are not the most important for the maintenance of personal identity. Instead, as studies aimed to capture the folk-psychological view of personal continuity demonstrate, judgements about continuity depend primarily on the persistent commitment to widely shared moral beliefs. Because of that, we argue that individuals with bv-FTD are more likely to lose their sense of self than individuals whose dementia primarily affects memory, such as Alzheimer’s disease. We end the chapter by showing how the importance of moral beliefs for continuity of self can be used to provide guidance to health-care professionals when considering changes in preference by individuals with dementia. (shrink)

Cross-linguistic comparisons serve as empirical tests generating evidence for and against lexical ambiguity in words like “good”, “know”, “the”, “can”, and “may”. Critics question such comparisons' validity. This article examines how cross-linguistic comparisons are treated as tests and shows that they have two predominant forms: one modeled on modus tollens, and another on Bayes' theorem, where the former is an enthymematic version of the latter. This analysis reveals the strengths and weaknesses of cross-linguistic comparisons, and thereby guides interpretation of their (...) results. It concludes that cross-linguistic comparisons generally yield stronger evidence against lexical ambiguity than for it. (shrink)

Nourbakhsh et al. found that amantadine, modafinil, and methylphenidate were no better than placebo at reducing fatigue after six weeks. Consequently, physicians have raised ethical concerns about prescribing these medicines as “placebos.” Such concerns are premature and overshadowed by ethical concerns surrounding the habit-forming potential of modafinil and methylphenidate.