Poverty and the Peril of Particulars

Moral extremists argue for a demanding duty of poverty relief by leveraging powerful intuitions about our duties to rescue those close at hand. I clear the way for a less demanding duty by arguing that this argumentative strategy commits the extremist to a conception of our duty in the face of global poverty that is deeply at odds with our convictions about how we may discharge that duty. These convictions reveal that global poverty and easy rescue cases give rise to duties of different kinds: whereas duties of rescue are ultimately explicable by appeal to moral claims to assistance, duties of poverty relief are not. The extremist’s most compelling argumentative strategy is therefore not viable—he may not straightforwardly appeal to facts about the demandingness of duties of rescue in arguing for demanding duties of poverty relief.     

Curiosity and the pleasures of learning: Wanting and liking new information

This paper proposes a new theoretical model of curiosity that incorporates the neuroscience of “wanting” and “liking”, which are two systems hypothesised to underlie motivation and affective experience for a broad class of appetites. In developing the new model, the paper discusses empirical and theoretical limitations inherent to drive and optimal arousal theories of curiosity, and evaluates these models in relation to Litman and Jimerson's (2004) recently developed interest-deprivation (I/D) theory of curiosity. A detailed discussion of the I/D model and its relationship to the neuroscience of wanting and liking is provided, and an integrative I/D/wanting-liking model is proposed, with the aim of clarifying the complex nature of curiosity as an emotional-motivational state, and to shed light on the different ways in which acquiring knowledge can be pleasurable.     

Reduced Memory Representations for Music

We address the problem of musical variation (identification of different musical sequences as variations) and its implications for mental representations of music. According to reductionist theories, listeners judge the structural importance of musical events while forming mental representations. These judgments may result from the production of reduced memory representations that retain only the musical gist. In a study of improvised music performance, pianists produced variations on melodies. Analyses of the musical events retained across variations provided support for the reductionist account of structural importance. A neural network trained to produce reduced memory representations for the same melodies represented structurally important events more efficiently than others. Agreement among the musicians' improvisations, the network model, and music-theoretic predictions suggest that perceived constancy across musical variation is a natural result of a reductionist mechanism for producing memory representations.