Video games are ideal platforms for the study of skill acquisition for a variety of reasons. However, our understanding of the development of skill and the cognitive representations that support skilled performance can be limited by a focus on game scores. We present an alternative approach to the study of skill acquisition in video games based on the tools of the Expert Performance Approach. Our investigation was motivated by a detailed analysis of the behaviors responsible for the superior performance of (...) one of the highest scoring players of the video game Space Fortress. This analysis revealed how certain behaviors contributed to his exceptional performance. In this study, we recruited a participant for a similar training regimen, but we collected concurrent and retrospective verbal protocol data throughout training. Protocol analysis revealed insights into strategies, errors, mental representations, and shifting game priorities. We argue that these insights into the developing representations that guided skilled performance could only easily have been derived from the tools of the Expert Performance Approach. We propose that the described approach could be applied to understand performance and skill acquisition in many different video games and help reveal mechanisms of transfer from gameplay to other measures of laboratory and real-world performance. (shrink)

Video games are ideal platforms for the study of skill acquisition for a variety of reasons. However, our understanding of the development of skill and the cognitive representations that support skilled performance can be limited by a focus on game scores. We present an alternative approach to the study of skill acquisition in video games based on the tools of the Expert Performance Approach. Our investigation was motivated by a detailed analysis of the behaviors responsible for the superior performance of (...) one of the highest scoring players of the video game Space Fortress. This analysis revealed how certain behaviors contributed to his exceptional performance. In this study, we recruited a participant for a similar training regimen, but we collected concurrent and retrospective verbal protocol data throughout training. Protocol analysis revealed insights into strategies, errors, mental representations, and shifting game priorities. We argue that these insights into the developing representations that guided skilled performance could only easily have been derived from the tools of the Expert Performance Approach. We propose that the described approach could be applied to understand performance and skill acquisition in many different video games and help reveal mechanisms of transfer from gameplay to other measures of laboratory and real-world performance. (shrink)

To make genuine progress toward explicating the relation between innate talent and high levels of ability, we need to consider the differences in structure between most everyday abilities and expert performance. Only in expert performance is it possible to show consistently that individuals can acquire skills to circumvent and modify basic characteristics (talent).

Cowan's experimental techniques cannot constrain subject's recall of presented information to distinct independent chunks in short-term memory (STM). The encoding of associations in long-term memory contaminates recall of pure STM capacity. Even in task environments where the functional independence of chunks is convincingly demonstrated, individuals can increase the storage of independent chunks with deliberate practice – well above the magical number four.

In the mid-1980s, Dario Donatelli participated in a laboratory study of the effects of around 800 h of practice on digit-span and increased his digit-span from 8 to 104 digits. This study assessed changes in the structure of his memory skill after around 30 years of essentially no practice on the digit-span task. On the first day of testing, his estimated span was only 10 digits, but over the following 3 days of testing it increased to 19 digits. Further analyses (...) of his recall performance and verbal reports identified which mechanisms of the original memory skill he could retrieve or reacquire over the 3 days of practice. We discuss theoretical implications for the retention of skilled memory performance, the effects of age-related changes in memory on it, and for the future study of the effects of disuse on exceptional performance and complex skill. (shrink)

This new edition of Law and Medical Ethics continues to chart the ever-widening field that the topics cover. The interplay between the health caring professions and the public during the period intervening since the last edition has, perhaps, been mainly dominated by wide-ranging changes in the administration of the National Health Service and of the professions themselves but these have been paralleled by important developments in medical jurisprudence.

In this paper I describe and analyze an economic situation involving two competitive organizations. I put forth the argument that because of the systemic nature of decision making relative to managing the requirements of utilizing a descriptive equation that determines how many people an economic system can support, that even if all the players in the situation act ethically, the results will still be harmful, and necessarily so, to the system and to many innocent people. I will demonstrate that harming (...) innocent people is required and morally defensible given the choices available. The best one can do is slow down the increase in disutilities and possibly operate the system within a range of acceptable behavior that minimizes the resulting harm to innocent people, even if we cannot entirely remove this harm. In this context ethics becomes the study of the acceptable as opposed to the preferable. (shrink)

In this moderate realist account of the whole range of issues facing contemporary analytic philosophy, J. K. Swindler aims to fill the gap in the literature between extreme realism and extreme nominalism. He discusses such fundamental concepts as existence, property, universality, individual, and necessity; analyzes the paradoxes of negative existentials and the substitutivity of co-referential terms; and defends objectivity in philosophy. The study moves through three phases: first, an argument that objective philosophical truth is attainable; second, an extended realist analysis (...) of fundamental ontological concepts; and finally, a demonstration of advantages of this ontology over leading alternatives. Weaving: An Analysis of the Constitution of Objects will be of interest to all philosophers working in contemporary philosophy, philosophy of language, logic, and metaphysics, and will serve as an excellent text for advanced undergraduate and graduate courses in metaphysics. (shrink)

Recently, new developments took place in the Dutch debate on the legislation of euthanasia. After a brief account of that debate, the article discusses a new government proposal for legislation in this field, which was submitted to the Dutch parliament in November 1991. This proposal relates not only to euthanasia but also to some other medical decisions concerning the end of life. The author concludes that, for several reasons, it is unsatisfactory.

A set is said to be amorphous if it is infinite, but is not the disjoint union of two infinite subsets. Thus amorphous sets can exist only if the axiom of choice is false. We give a general study of the structure which an amorphous set can carry, with the object of eventually obtaining a complete classification. The principal types of amorphous set we distinguish are the following: amorphous sets not of projective type, either bounded or unbounded size of members (...) of partitions of the set into finite pieces), and amorphous sets of projective type, meaning that the set admits a non-degenerate pregeometry, over finite fields either of bounded cardinality or of unbounded cardinality. The hope is that all amorphous sets will be of one of these types. Examples of each sort are constructed, and a reconstruction result for bounded amorphous sets is presented, indicating that the amorphous sets of this kind constructed in the paper are the only possible ones. The final section examines some questions concerned with the resulting cardinal arithmetic. (shrink)

The literature on collective action largely ignores the constraints that moral principle places on action-prompting intentions. Here I suggest that neither individualism nor holism can account for the generality of intentional contents demanded by universalizability principles, respect for persons, or proactive altruism. Utilitarian and communitarian ethics are criticized for nominalism with respect to social intentions. The failure of individualism and holism as grounds for moral theory is confirmed by comparing Tuomela's reductivist analysis of we-intentions with Gilbert's analysis of social facts. (...) Tuomela's account founders over intentions to cooperate, and Gilbert's cannot accommodate legitimate authority, vicarious agency, or group structure. (shrink)

The author outlines and compares the ethics of the six orthodox systems, Buddhism, Jainism and the Cärväka System as well as the ethical teaching of the Vedas, Upanishads and the Bahagavadgïtä. The concluding four chapters deal with the ethics of Tagore, Radhakrishnan, Gandhi and Nehru. Dr. Sharma is particularly concerned with showing that the ethics of these schools have more in common than is ordinarily supposed, that ethics must be grounded in metaphysics and that the ethical theories of the East (...) are "superior" to those of the West. The highly polemical nature of this book, as well as the author's reliance on secondary sources detracts from its purported usefulness to the scholar and student.—R. J. K. (shrink)

Originally published in 1926, this book attempts to state 'what has been believed with regard to God's incapacity for suffering'. Mozley charts the development of the doctrine from the Apostolic Fathers through the Reformation to the modern influence of metaphysical philosophy and concludes with six questions intended to prompt further theological discussion on this point. This book will be of value to anyone with an interest in the history of Christian theology.

This volume contains thirty essays written in honor of Charles Hartshorne. The papers are divided into four sections: The Current Status of Metaphysics, Studies in Whiteheadian Philosophy, Studies in Metaphysics and Logic, and Studies in the Philosophy of Religion. Although many of the essays do not focus directly on Hartshorne's thought, two of the most interesting do center on his theological concerns. They are Shubert Ogden's "Bultmann's Demythologizing and Hartshorne's Dipolar Theism" and J. N. Findlay's "Reflections on Necessary Existence. Included (...) in the book are two bibliographies, one noting the published works of Hartshorne and the other listing writings by and about Whitehead published in languages other than English.—J. K. R. (shrink)

The author traces the development of the concept of an empirical scientific theory from pre-critical thought through Aristotle. Parmenides is credited with recognizing the distinction between abstract concepts and the empirical world. Zeno's paradoxes and the skepticism of the sophists are seen not only as the two major obstacles to any empirical theory but also as containing implicitly the criteria of a theory, i.e., that it must not lead to paradoxes, and that it be objectively true. Plato, in his Sophist, (...) proves that an empirical theory is possible by resolving the paradoxes and by refuting the sophists' claim that false belief is impossible. The second part of Plato's Parmenides is seen as an attempt to present and evaluate alternative "structures of the world". Finally, the author discusses Aristotle's Physics as a thoroughly worked out theory. The author's frequent use of the technical terminology of contemporary philosophy of science helps him to bring these ancient works up to date, but also yields interpretations which are anachronistic. The book is original and often insightful.—R. J. K. (shrink)

We consider the relation between versions of Ramsey’s Theorem and König’s Infinity Lemma, in the absence of the axiom of choice.

Mason and McCall Smith's classic textbook discusses the relationship of medical practice and ethics with the operation of the law. The subjects covered include natural and assisted reproduction, the impact of modern genetics on medicine, medical confidentiality, consent to medical treatment, the use of resources and problems surrounding death in the new medical era. It is of significance to anyone with an interest in the ethical and legal practice of medicine.

In this article Doret J. de Ruyter and Anders Schinkel argue that parents' ideals can enhance children's autonomy, but that they may also have a detrimental effect on the development of children's autonomy. After describing the concept of ideals and elucidating a systems theoretical conception of autonomy, de Ruyter and Schinkel explore the ways in which the ideals of parents may play a role in the development of their children's autonomy. They show that abstract and complex ideals of parents (...) (be it ideals for their children, ideals with regard to their parenthood, or their personal ideals) are most likely to enhance their children's autonomy. They also explain that an authoritative parenting style is most conducive to autonomy, although whether or not it does benefit children's autonomy also depends on the types of ideals pursued by parents. (shrink)

IN THE beginning Parmenides sought to deny the void. But he found himself trapped by his language and his thought into admitting what he sought to deny. Wisely, he counseled others to avoid the whole region in which the problem arises, lest they too be unwarily ensnared. Plato, being less easily intimidated and grasping for the first time the urgency of the paradox, unearthed each snare in turn until he felt he had found a safe path through the forbidden terrain (...) in a new conception of being and the derivation of its linguistic consequences in the Sophist. Aristotle evidently took Parmenides’ advice; and save for a few groping scholastics, perhaps Leibniz, Brentano, and Meinong, and Frege only in passing, no one else attempted the crossing before Russell made his spectacular dash through the posted ground from the completely new direction of linguistic reference. Again the problem lay dormant for half a century until Strawson constructed a new low road through ordinary language and Quine improved Russell’s high algebraic pass. Refinements of these routes have been forthcoming, especially from Searle and Kripke, until today it might appear that there are two super highways through Parmenides’ forbidden country of nonbeing. In this essay I will first argue that these new linguistic highways are no more than flimsy camouflage hiding but not resolving the old paradoxes. I will then show how Plato’s ontological way out, though more difficult, is the straight and narrow path. (shrink)

Controversy has centered on the frightening potential possessed by the state to deprive of his rights the individual officially classified as mad.In this book, ...

This is a study of the theory of knowledge as proposed by Sankara, the eighth century Indian philosopher. After taking note of the controversy still existing among scholars concerning several books attributed to Sankara as well as certain points of his doctrine, the author bases his conclusions on the principal works of Sankara himself. Though Sankara calls himself a mere commentator of Hindu Scripture, still, he is no blind follower of tradition, but upholds the value of reasoning in making out (...) and establishing the right meaning of Scripture. Similarly experience is valued by Sankara sometimes even against the testimony of Scripture, especially when the latter seems to contradict evident facts. But the highest form of knowledge for Sankara is anubhava or direct experience, through which Brahman, the Supreme Reality, is realized as the ultimate and real self of all things. The author places Sankara's theory in proper perspective comparing it with the theories of other Indian schools and even of Western Philosophers.—J. K. (shrink)

This paper traces the development of parental rights to accept or to refuse treatment for a defective newborn infant in the United Kingdom and in the United States of America; its main purpose is to explore the common trends from which an acceptable policy may be derived. It is probable that the British law on parental decision-making in respect of infants suffering from Down's syndrome is to be found in the civil case of In Re B rather than in the (...) criminal case of R v Arthur. United States court decisions are strongly influenced by constitutional law and reflect the right to personal privacy. The position on each side of the Atlantic seems very similar but this similarity includes a sense of uncertainty as to legal responsibility. There is a case for agreed guidelines and a suggested format is offered for consideration. (shrink)

The introduction gives a brief but very useful account of the life and works of Aquinas. The Dictionary is planned as a handbook for modern students on the model of the Plato Dictionary and the Aristotle Dictionary and concentrates on the interests of modern studies in philosophy and theology. Hence terms like Analogy of Being, Participation, Act, Potency, Matter, Form, Person, Individuation, and the other central notions of Thomistic Philosophy receive scant treatment. Similarly theological terms like Incarnation, Trinity, Redemption, and (...) Supernatural are omitted. But it contains an impressive number of entries most of which get several important text references from the works of St. Thomas.—J. K. (shrink)