Many philosophers believe that there is a fundamental distinction between knowing that something is the case and knowing how to do something. According to Gilbert Ryle, to whom the insight is credited, knowledge-how is an ability, which is in turn a complex of dispositions. Knowledge-that, on the other hand, is not an ability, or anything similar. Rather, knowledge-that is a relation between a thinker and a true proposition.

Tested the 2-process theory of detection, search, and attention presented by the current authors in a series of experiments. The studies demonstrate the qualitative difference between 2 modes of information processing: automatic detection and controlled search; trace the course of the learning of automatic detection, of categories, and of automatic-attention responses; and show the dependence of automatic detection on attending responses and demonstrate how such responses interrupt controlled processing and interfere with the focusing of attention. The learning of categories is (...) shown to improve controlled search performance. A general framework for human information processing is proposed. The framework emphasizes the roles of automatic and controlled processing. The theory is compared to and contrasted with extant models of search and attention. (shrink)

I argue that the intellectualist account of knowledge-how, according to which agents have the knowledge-how to \ in virtue of standing in an appropriate relation to a proposition, is only half right. On the composition view defended here, knowledge-how at least typically requires both propositional knowledge and motor representations. Motor representations are not mere dispositions to behavior because they have representational content, and they play a central role in realizing the intelligence in knowledge-how. But since motor representations are not propositional, (...) propositional knowledge is not sufficient for knowledge-how. (shrink)

The extensive involvement of nonconscious processes in human behaviour has led some to suggest that consciousness is much less important for the control of action than we might think. In this article I push against this trend, developing an understanding of conscious control that is sensitive to our best models of overt action control. Further, I assess the cogency of various zombie challenges—challenges that seek to demote the importance of conscious control for human agency. I argue that though nonconscious contributions (...) to action control are evidently robust, these challenges are overblown. (shrink)

Are there distinct roles for intention and motor representation in explaining the purposiveness of action? Standard accounts of action assign a role to intention but are silent on motor representation. The temptation is to suppose that nothing need be said here because motor representation is either only an enabling condition for purposive action or else merely a variety of intention. This paper provides reasons for resisting that temptation. Some motor representations, like intentions, coordinate actions in virtue of representing outcomes; but, (...) unlike intentions, motor representations cannot feature as premises or conclusions in practical reasoning. This implies that motor representation has a distinctive role in explaining the purposiveness of action. It also gives rise to a problem: were the roles of intention and motor representation entirely independent, this would impair effective action. It is therefore necessary to explain how intentions interlock with motor representations. The solution, we argue, is to recognise that the contents of intentions can be partially determined by the contents of motor representations. Understanding this content-determining relation enables better understanding how intentions relate to actions. (shrink)

In his most recent book, Stanley (2011b) defends his Intellectualist account of knowledge how. In Know How, Stanley produces the details of a propositionalist theory of intelligent action and also responds to several objections that have been forwarded to this account in the last decade. In this paper, I will focus specifically on one claim that Stanley makes in chapter one of his book: I will focus on Stanley’s claim that automatic mechanisms can be used by the intellectualist in order (...) to terminate Ryle’s regress. I will argue that this proposed solution to the regress, regardless of how propositions are individuated, cannot provide an adequate intellectualist account of skillful action. I should note that the solution to Ryle’s regress is central to the intellectualist agenda. If Stanley fails to stop the regress or stops the regress by appealing to nonpropositional knowledge, then his intellectualist project fails. (shrink)

First published in 1995, The Visual Brain in Action remains a seminal publication in the cognitive sciences. For this new edition, a very substantial and illustrated epilogue has been added to the book in which Milner and Goodale review the key developments that support or challenge the views that were put forward in the first edition.