Online research in philosophy

This commentary centres around the system of human visual attention. Although generally supportive of the position advocated in the target article, we suggest that the detailed account overestimates the capacities of active human vision. Limitations of peripheral search and saccadic accuracy are discussed in relation to the division of labour between covert and overt attentional processes.

The naturalistic fallacy is mentionedfrequently by evolutionary psychologists as anerroneous way of thinking about the ethicalimplications of evolved behaviors. However,evolutionary psychologists are themselvesconfused about the naturalistic fallacy and useit inappropriately to forestall legitimateethical discussion. We briefly review what thenaturalistic fallacy is and why it is misusedby evolutionary psychologists. Then we attemptto show how the ethical implications of evolvedbehaviors can be discussed constructivelywithout impeding evolutionary psychologicalresearch. A key is to show how ethicalbehaviors, in addition to unethical behaviors,can evolve by natural selection.

This paper argues that “covert” operations like Quantifier Raising (QR) can precede “overt” operations. Specifically we argue that there are overt operations that must take the output of QR as their input. If this argument is successful there are two interesting consequences for the theory of grammar. First, there cannot be a “covert” (i.e. post-spellout) component of the grammar. That is, what distinguishes operations that affect phonology from those that do not cannot be an arbitrary point in the derivation (“spellout”) before which the former apply and after which the latter do; all syntactic operations apply in the same component (henceforth ‘single component grammar’). Second, there must be some alternative means for distinguishing “overt” from “covert” operations. One such alternative, which we can call the ‘phonological theory of QR’, was suggested by Bobaljik (1995), Pesetsky (1998), Groat and O’Neil (1994). These authors proposed that the distinguishing property has to do with principles of the syntax-phonology interface. Assume that movement is a copying operation with phonology targeting one copy in a chain for pronunciation. The distinction between “overt” and “covert” movement, these authors suggest, is this: “overt” movements are the result of phonology targeting the head of a chain for..

Findlay & Walker's target article questions whether covert attention plays any role in normal visual scanning (overt attention). My commentary suggests that there is indeed a very close link between the processes that govern covert and overt attention.

The naturalistic fallacy is a source of much confusion. In what follows I will explain what G. E. Moore meant by the naturalistic fallacy, give modern day examples of it then mention some of the different types of views it has spawned. Finally, I will consider a few criticisms of it.