Innovative problem-solving in a small,wild canid

Animal Cognition - Innovation — the ability to solve problems in a novel way — is not only associated with cognitive abilities and relative brain size, but also by noncognitive traits,...     

Three predictions of the economic concept of unit price in a choice context

Economic theory makes three predictions about consumption and response output in a choice situation: (a) When plotted on logarithmic coordinates, total consumption (i.e., summed across concurrent sources of reinforcement) should be a positively decelerating function, and total response output should be a bitonic function of unit price increases; (b) total consumption and response output should be determined by the value of the unit price ratio, independent of its cost and benefit components; and (c) when a reinforcer is available at the same unit price across all sources of reinforcement, consumption should be equal between these sources. These predictions were assessed in human cigarette smokers who earned cigarette puffs in a two-choice situation at a range of unit prices. In some sessions, smokers chose between different amounts of puffs, both available at identical unit prices. Individual subjects' data supported the first two predictions but failed to support the third. Instead, at low unit prices, the relatively larger reinforcer (and larger response requirement) was preferred, whereas at high unit prices, the smaller reinforcer (and smaller response requirement) was preferred. An expansion of unit price is proposed in which handling costs and the discounted value of reinforcers available according to ratio schedules are incorporated.     

Pediatric Health-Related Quality-of-Life Measurement Technology: Intersections between Science, Managed Care, and Clinical Care

The demand for health care outcomes assessment is increasing, driven by the proliferation of managed care as a form of health care financing. Providers, consumers, and payers can use health care outcomes to improve the efficiency and quality of care, spur performance improvement, and demonstrate accountability. This review introduces health outcomes and focuses on one particular outcome—pediatric health-related quality of life (HRQOL), exemplified by the PedsQL, a brief, practical, reliable, valid, and responsive measure of pediatric HRQOL. HRQOL measurement has the potential, in pediatric clinical practice, to improve assessment, clinical management, and treatment evaluation if practical, conceptual, and empirical challenges are addressed. These issues are discussed and directions for future research are described that would demonstrate the value of HRQOL measurement in pediatric clinical settings.     

Religious belief,age, and sexual orientation on attributions of younger and older gay and heterosexual men

Using 4 vignettes and 20 response items, this exploratory study investigated attributions about older or younger gay or heterosexual men with a history of multiple sex partners, substance abuse, and legal problems. The character is diagnosed with a terminal illness and two options for care: no treatment or an aggressive treatment protocol with a small chance of recovery. When controlling for respondents’ (N?=?324) religious identification, frequency of attendance at religious services, and ethno-cultural identification, a General Linear Model was significant (F?=?57.014, df?=?20, p?<?.001). Differences in the vignette responses centred on perceptions of quality of life, the character's lifestyle, and suicide.     

Extra‐powerful on the visuo‐perceptual space,but variable on the number space: Different effects of optokinetic stimulation in neglect patients

We studied the effects of optokinetic stimulation (OKS; leftward, rightward, control) on the visuo‐perceptual and number space, in the same sample, during line bisection and mental number interval bisection tasks. To this end, we tested six patients with right‐hemisphere damage and neglect, six patients with right‐hemisphere damage but without neglect, and six neurologically healthy participants. In patients with neglect, we found a strong effect of leftward OKS on line bisection, but not on mental number interval bisection. We suggest that OKS influences the number space only under specific conditions.     

Social values influence the adequacy conditions of scientific theories: beyond inductive risk

The ‘death of evidence’ issue in Canada raises the spectre of politicized science, and thus the question of what role social values may have in science and how this meshes with objectivity and evidence. I first criticize philosophical accounts that have to separate different steps of research to restrict the influence of social and other non-epistemic values. A prominent account that social values may play a role even in the context of theory acceptance is the argument from inductive risk. It maintains that the more severe the social consequences of erroneously accepting a theory would be, the more evidence is needed before the theory may be accepted. However, an implication of this position is that increasing evidence makes the impact of social values converge to zero; and I argue for a stronger role for social values. On this position, social values (together with epistemic values and other empirical considerations) may determine a theory’s conditions of adequacy, which among other things can include considerations about what makes a scientific account unbiased and complete. I illustrate this based on recent theories of human evolution and the social behaviour of non-human primates, where some of the social values implicated are feminist values. While many philosophical accounts (both arguments from inductive risk and from underdetermination) conceptualize the relevance of social values in terms of making inferences from evidence, I argue for the need for a broader philosophical framework, which is also motivated by issues pertaining to scientific explanation.     

Circumstance of Birth: Life on the Color Line

The article describes how my privileged social-location in a White, middle-class suburb shaped my interest in unpacking White privilege and White blindness. I define and elaborate on the implications of one’s “social location.” In unpacking the influences from, and implications of, my social location, I describe the development of a clinical attitude that aims at inclusive dialogue, with special emphasis on humility, dignity, and emotional courage.