Hume and the Problem of Causation

This chapter traces Hume’s search for the impression-source of the idea of necessary connection through Book 1 of the Treatise. It then sketches and evaluates the main interpretative positions concerning Hume’s account of causation. These positions characterize Hume either as a regularity theorist who thinks that causation is merely a matter of temporal priority, contiguity, and constant conjunction, a projectivist who takes causal talk to have an essential non-representational element, or a skeptical realist who believes in, and believes that we genuinely refer to, real causal powers. Finally, it briefly discusses rival interpretations of Hume’s famous “two definitions” of causation

Arguing about causes in law: a semi-formal framework for causal arguments

In legal argumentation and liability attribution, disputes over causes play a central role. Legal discussions about causation often have difficulty with cause-in-fact in complex situations, e.g. overdetermination, preemption, omission. We first assess three theories of causation. Then we introduce a semi-formal framework to model causal arguments using both strict and defeasible rules. We apply the framework to the Althen vaccine injury case. Wrapping up the paper, we motivate a causal argumentation framework and propose to integrate current theories of causation

Dietary complexity and hidden costs of prey switching in a generalist top predator

Variation in predator diet is a critical aspect of food web stability, health, and population dynamics of predator/ prey communities. Quantifying diet, particularly among cryptic species, is extremely challenging, however, and differentiation between demographic subsets of populations is often overlooked. We used prey remains and data taken postmortem from otter Lutra lutra to determine the extent to which dietary variation in a top predator was associated with biotic, spatial, and temporal factors. Biotic data (e.g., sex, weight, and length) and stomach contents were taken from 610 otters found dead across England and Wales between 1994 and 2010. Prey remains were identified to species where possible, using published keys and reference materials. Multi‐model inference followed by model prediction was applied to test for and visualize the nature of associations. Evidence for widespread decline in the consumption of eels (Anguilla anguilla ) reflected known eel population declines. An association between eel consumption and otter body condition suggested negative consequences for otter nutrition. Consumption of Cottus gobio and stickleback spp. increased, but was unlikely to compensate (there was no association with body condition). More otters with empty stomachs were found over time. Otter sex, body length, and age‐class were important biotic predictors of the prey species found, and season, region, and distance from the coast were important abiotic predictors. Our study is unique in its multivariate nature, broad spatial scale, and long‐term dataset. Inclusion of biotic data allowed us to reveal important differences in costs and benefits of different prey types, and differences between demographic subsets of the population, overlaid on spatial and temporal variation. Such complexities in otter diet are likely to be paralleled in other predators, and detailed characterization of diet should not be overlooked in efforts to conserve wild populations

Depression and Motivation

Among the characteristic features of depression is a diminishment in or lack of action and motivation. In this paper, I consider a dominant philosophical account which purports to explain this lack of action or motivation. This approach comes in different versions but a common theme is, I argue, an over reliance on psychologistic assumptions about action–explanation and the nature of motivation. As a corrective I consider an alternative view that gives a prominent place to the body in motivation. Central to the experience of depression are changes to how a person is motivated to act and, also as central, are changes to bodily feelings and capacities. I argue that broadly characterizing motivation in terms of bodily capacities can, in particular, provide a more compelling account of depressive motivational pathology