The Page target article is interesting because of apparent coverage of many psychological phenomena with simple, unified neural techniques. However, prototype phenomena cannot be covered because the strongest response would be to the first-learned stimulus in each category rather than to a prototype stimulus or most frequently presented stimuli. Alternative methods using distributed coding can also achieve portability of network knowledge.

Computer simulations show that an unstructured neural-network model [Shultz, T. R., & Bale, A. C. (2001). Infancy, 2, 501–536] covers the essential features␣of infant learning of simple grammars in an artificial language [Marcus, G. F., Vijayan, S., Bandi Rao, S., & Vishton, P. M. (1999). Science, 283, 77–80], and generalizes to examples both outside and inside of the range of training sentences. Knowledge-representation analyses confirm that these networks discover that duplicate words in the sentences are nearly identical and that (...) they use this near-identity relation to distinguish sentences that are consistent or inconsistent with a familiar grammar. Recent simulations that were claimed to show that this model did not really learn these grammars [Vilcu, M., & Hadley, R. F. (2005). Minds and Machines, 15, 359–382] confounded syntactic types with speech sounds and did not perform standard statistical tests of results. (shrink)

Neuroconstructivist modeling can be usefully extended with algorithms that build their own topology and recruit existing knowledge, effectively constructing a hierarchy of network modules. Possible benefits include allowing abilities to emerge naturally, in a way that affords objective study, deeper insights, and more rapid progress, and provides more serious consideration of the implications of constructivism.

How much would you pay to play a lottery with an “infinite expected payoff?” In the case of the century old, St. Petersburg Paradox, the answer is that the vast majority of people would only pay a small amount. The authors seek to understand this paradox by providing an explanation consistent with a broad, process‐level model of human decision‐making under risk.

Missing from Quartz & Sejnowski's (Q&S's) unique and valuable effort to relate cognitive development to neural constructivism is an examination of the global emergent properties of adding new neural circuits. Such emergent properties can be studied with computational models. Modeling with generative connectionist networks shows that synaptogenic mechanisms can account for progressive increases in children's representational power.

We highlight methodological and theoretical limitations of the authors' Dirac formalism and suggest the von Neumann open systems approach as a resolution. The open systems framework is a generalization of classical probability and we hope it will allow cognitive scientists to extend quantum probability from perception, categorization, memory, decision making, and similarity judgments to phenomena in learning and development.

Perruchet & Vinter do not fully resolve issues about the role of consciousness and the unconscious in cognition and learning, and it is doubtful that consciousness has been computationally implemented. The cascade-correlation (CC) connectionist model develops high-order feature detectors as it learns a problem. We describe an extension, knowledge-based cascade-correlation (KBCC), that uses knowledge to learn in a hierarchical fashion.

Clark & Thornton present the well-established principle that recoding inputs can make learning easier. A useful goal would be to make such recoding automatic. We discuss some ways in which incrementality and transfer in connectionist networks could attain this goal.

We understand the workings of the human body as a series of interdependent physiological relationships: muscle interacts with bone as the heart responds to hormones secreted by the brain, all the way down to the inner workings of every cell. To make an organism function, no one component can work alone. In light of this, why is it that the accepted understanding that the physical phenomenon of the mind is attributed only to the brain? In The Embodied Mind, internationally renowned (...) psychiatrist Dr. Thomas R. Verny sets out to redefine our concept of the mind and consciousness. He brilliantly compiles new research that points to the mind's ties to every part of the body. The Embodied Mind collects disparate findings in physiology, genetics, and quantum physics in order to illustrate the mounting evidence that somatic cells, not just neural cells, store memory, inform genetic coding, and adapt to environmental changes-all behaviors that contribute to the mind and consciousness. Cellular memory, Verny shows, is not just an abstraction, but a well-documented scientific fact that will shift our understanding of memory. Verny describes single-celled organisms with no brains demonstrating memory, and points to the remarkable case of a French man who, despite having a brain just a fraction of the typical size, leads a normal life with a family and a job. The Embodied Mind shows how intelligence and consciousness-traits traditionally attributed to the brain alone-also permeate our entire being. Bodily cells and tissues use the same molecular mechanisms for memory as our brain, making our mind more fluid and adaptable than we could have ever imaged. (shrink)

The dance metaphor for the communication between two organisms may be an appealing image because it appears to capture the intricate synchronization of their interaction; however, it is neither parsimonious nor easily tested. Instead, a multichannel information-processing model, even one that can process only serial events, provides all of the flexibility required to account for the complex temporal coordinated action observed.

It is assumed that self-control always has a higher value. What if it does not? Furthermore, although there are clearly intrinsic reinforcers, their measurement is problematic, especially for a behavioral analyst. Finally, is it more parsimonious to postulate that these behaviors are acquired rather than genetically based?

The authors' attempt to explore the ability of animals to monitor how certain they are of their choice behavior, necessarily fails both in their effort to include “higher” mammals (such as monkeys and dolphins) in the class of metacognitive organisms (humans) and in their conclusion that “lower” organisms are not capable of similar behavior.

Byrne & Russon propose that priming can account for the imitation of simple actions, but they fail to explain how the behavior of another can prime the observer's own behavior. They also propose that imitation of complex skills requires a sequence of acts tied together by a program, but they fail to rule out the role of trial-and-error learning and perceptual/motivational mechanisms in such task acquisition.

Social influence and social learning are important to the survival of many organisms, and certain forms of social learning also may have important implications for their underlying cognitive processes. The various forms of social influence and learning are discussed with special emphasis on the mechanisms that may be responsible for opaque imitation (the copying of a response that the observer cannot easily see when it produces the response). Three procedures are examined, the results of which may qualify as opaque imitation: (...) the bidirectional control procedure, the two- action procedure, and the do-as-I-do procedure. Variables that appear to affect the emergence of opaque imitation are identified and other complex forms of response copying are discussed. Keywords: bidirectional control procedure; contagion; emulation; imitation; local enhancement; object movement reenactment; observational conditioning; opaque imitation; social enhancement; social facilitation; social influence; social learning; stimulus enhancement; two action procedure. (shrink)

Heyes discounts findings of imitation and self recognition in nonhuman primates based on flimsy speculation and then indicates that even positive findings would not provide evidence of theory of mind. Her proposed experiment is unlikely to work, however, because, even if the animals have a theory of mind, a number of assumptions, not directly related to theory of mind, must be made about their reasoning ability.

Codes of ethics exist in many, if not the majority, of all large U.S. companies today. But how the impact of these written codes affect managerial attitudes and behavior is still not clearly documented or explained. This study takes a step in that direction by proposing that attention should shift from the codes themselves as the sources of ethical behavior to the persons whose behavior is the focus of these codes. In particular, this study investigates the role of code familiarity (...) as a factor impacting the influence of an ethics code on manager behavior. Data collected from 286 executives from companies in the direct selling industry are used to test hypotheses (1) that the perceived usefulness of ethics codes is positively related to the degree of familiarity with the code, and (2) that ethical climate as assessed by managers is positively related to the code''s perceived usefulness. Both hypotheses are supported, and their implications and further research directions are discussed. (shrink)

Adam Smith is respected as the father of contemporary economics for his work on systemizing classical economics as an independent field of study in The Wealth of Nations. But he was also a significant moral philosopher of the Scottish Enlightenment, with its characteristic concern for integrating sentiments and rationality. This article considers Adam Smith as a key moral philosopher of commercial society whose critical reflection upon the particular ethical challenges posed by the new pressures and possibilities of commercial society remains (...) relevant today. The discussion has three parts. First I address the artificial separation between self-interest and morality often attributed to Smith, in which his work on economics is stripped of its ethical context. Second I outline Smith’s ethical approach to economics, focusing on his vigorous but qualified defence of commercial society for its contributions to prosperity, justice, and freedom. Third I outline Smith’s moral philosophy proper as combining a naturalistic account of moral psychology with a virtue ethics based on propriety in commercial society. (shrink)

University of Utrecht, Department of Philosophy, Heidelberglaan 6, 3584 CS Utrecht, The Netherlands. Tel.: +31 30 253 28 74, Email: Thomas.Nys{at}phil.uu.nl ' + u + '@' + d + ' '//-->Measures in public health care seem vulnerable to charges of paternalism: their aim is to protect, restore, or promote people's health, but the public character of these measures seems to leave insufficient room for respect for individual autonomy. This paper wants to explore three challenges to these charges: Measures in (...) PHC are aimed to protect, restore or promote ‘deep autonomy’, Measures in PHC are directed at the public and, as such, they do show respect for autonomy, and Some measures in PHC can be justified on grounds of justice and need not be defended as cases of ‘justified paternalism’. Although charges of unjustified paternalism in PHC might still be relevant, we should at least face these different challenges. CiteULike Connotea Del.icio.us What's this? (shrink)