Connectionist models provide a promising alternative to the traditional computational approach that has for several decades dominated cognitive science and artificial intelligence, although the nature of connectionist models and their relation to symbol processing remains controversial. Connectionist models can be characterized by three general computational features: distinct layers of interconnected units, recursive rules for updating the strengths of the connections during learning, and “simple” homogeneous computing elements. Using just these three features one can construct surprisingly elegant and powerful models of (...) memory, perception, motor control, categorization, and reasoning. What makes the connectionist approach unique is not its variety of representational possibilities or its departure from explicit rule-based models, or even its preoccupation with the brain metaphor. Rather, it is that connectionist models can be used to explore systematically the complex interaction between learning and representation, as we try to demonstrate through the analysis of several large networks. (shrink)

In a number of influential articles published since 1972, Dorothy Grover has developed the prosentential theory of truth. Brought together and published with a new introduction, these essays are even more impressive as a group than they were as single contributions to philosophy and linguistics. Denying that truth has an explanatory role, the prosentential theory does not address traditional truth issues like belief, meaning, and justification. Instead, it focuses on the grammatical role of the truth predicate and asserts that (...) “it is true” is a prosentence, functioning much as a pronoun does. Grover defends the theory by indicating how it can handle notorious paradoxes like the Liar, as well as by analyzing some English truth-usages. The introduction to the volume surveys traditional theories of truth, including correspondence, pragmatic, and coherence theories. It discusses the essays to come and, finally, considers the implications of the prosentential theory for other theories. Despite the fact that the prosentential theory dismisses the “nature of truth” as a red herring, Grover shows that there are important aspects of traditional truth theories that prosentential theorists have the option of endorsing. (shrink)

Learning is fundamentally about action, enabling the successful navigation of a changing and uncertain environment. The experience of pain is central to this process, indicating the need for a change in action so as to mitigate potential threat to bodily integrity. This review considers the application of Bayesian models of learning in pain that inherently accommodate uncertainty and action, which, we shall propose are essential in understanding learning in both acute and persistent cases of pain.

"This reviewer had to be restrained from stopping people in the street to urge them to read it: They would learn something of the way science is done,...

Collecting information that one expects to be useful is a powerful way to facilitate learning. However, relatively little is known about how people decide which information is worth sampling over the course of learning. We describe several alternative models of how people might decide to collect a piece of information inspired by “active learning” research in machine learning. We additionally provide a theoretical analysis demonstrating the situations under which these models are empirically distinguishable, and we report a novel empirical study (...) that exploits these insights. Our model-based analysis of participants' information gathering decisions reveals that people prefer to select items which resolve uncertainty between two possibilities at a time rather than items that have high uncertainty across all relevant possibilities simultaneously. Rather than adhering to strictly normative or confirmatory conceptions of information search, people appear to prefer a “local” sampling strategy, which may reflect cognitive constraints on the process of information gathering. (shrink)

The historical context of body and tissue donation is deeply problematic, with patriarchal and colonial narratives. The contemporary context of molecular and genetic biology further complicates issues of bodily donation through narratives of abstraction and extraction. As practitioners working outside the conventional boundaries of scientific study learn the tools and techniques to extract and use bodily materials, they are also learning and challenging the procedures and processes. This article approaches questions of bodily donation through the edited transcript of a conversation (...) between artists who regularly use body fluids and cellular bodily materials in their practice, moderated by Louise Mackenzie and Ilke Turkmendag as part of the Taboo–Transgression–Transcendence in Art & Science Conference held online with the support of the University of Applied Arts, Vienna, 2020. The panel challenged the ethical and conceptual assumptions made in biotechnological research and reconsidered where the boundaries of the body lie, what ‘authority’ research carries and what choices researchers make when using the bodies of others. The transcribed conversation addresses taboos of the female body, specifically menstruation, the commodification of tissue from female human bodies, human milk politics and questions biopolitical treatment of the female body. The full, unedited panel conversation, including questions from the audience, and an accompanying video of edited interviews with panellists, is available online at https://www.loumackenzie.com/offering-the-body. (shrink)

Our aim in this paper is to explore two possible directions of interaction between normative folk psychology and decision theory. In one direction, folk psychology plays a regulative role that constrains practical decision‐making. In the other direction, decision theory provides novel tools and norms that shape folk psychology. We argue that these interactions could lead to the emergence of an iterative “decision theoretic spiral," where folk psychology influences decision‐making, decision‐making is studied by decision theory, and decision theory influences folk psychology. (...) Understanding these interactions is important both for the theoretical study of social cognition and decision theory, and also for thinking about how to implement practical interventions into real‐world decision‐making. (shrink)

"This book is very valuable. Today, there are too many books on the Work that are either deliberately impersonal and as a result are just a re-explaining of basic ideas which are already there in Ouspensky.