Optimization and simplicity: Computational vision and biological explanation

David Marr's theory of vision has been a rich source of inspiration, fascination and confusion. I will suggest that some of this confusion can be traced to discrepancies between the way Marr developed his theory in practice and the way he suggested such a theory ought to be developed in his explicit metatheoretical remarks. I will address claims that Marr's theory may be seen as an optimizing theory, along with the attendant suggestion that optimizing assumptions may be inappropriate for cognitive mechanisms just as anti-adaptationists have argued they are inappropriate for other physiological mechanisms. I will discuss the nature of optimizing assumptions and theories. Considering various difficulties in identifying and assessing optimizing assumptions, I will suggest that Marr's theory is not purely an optimizing theory and that reaction to Marr on this issue prompts interesting considerations for the development of inter-disciplinary constraints in the cognitive and brain sciences.Thanks are due to Ron McClamrock for his comments on previous drafts of this material. Also, early versions of some of the material in this paper were presented at LMPS '91 and at a Cognitive Studies Colloquium at Penn State University in 1992. Thanks to those in attendance, especially to Rich Carlson and Mark Detweiler, for their comments. Thanks, too, to an anonymous referee for suggesting several useful references.     

“Stony ground but not entirely”

Even though Alain Badiou depicts himself and his philosophy as “militant atheist” there is, as he himself has pointed out, nevertheless several theological notions present in his work. This presence of theological language is not restricted to his book on the Apostle Paul, but can be found throughout his work. This paper focuses on Badiou’s substantial use of the term “grace” as a metaphor for the exceptional occurrence that he defines in philosophical terms as an “event”. The aim of the paper is to identify the context in which Badiou comes to use, and the sources from which he draws the metaphor of “grace”, and thus to contribute to a more precise understanding of what he means by this metaphor. The paper will identify the key instances in which Badiou employs the term “grace” in an effort to clarify how he understands it and what ends he intends it to serve. And in contrast to the existing research concerning the issue of grace, in which there has been a tendency to centre the attention almost entirely on Badiou’s book on Paul, it will consider a number of different instances in which he uses this term.     

You Must Have Thought This Book Was About You1: Reply to Daniel Dennett

Daniel Dennett's review 2 of my book, Human Nature and the Limits of Science, 3 was apparently conceived as part of a multiple review, anticipating an author's response, so I am grateful for the opportunity to satisfy this expectation. Indeed, Dennett uses this excuse to justify devoting his own contribution to responding to those parts of the book directed explicitly at his own work, leaving other imagined reviewers to take care of other issues. Since he has things to say about most of the topics in the book he evidently interpreted this remit widely, in fact taking the book as “presented as an antidote of sorts to [his] own world view” (p. 482). Let me begin, therefore, by reassuring Dennett that, while I certainly had some critical things to say about some of his views, the book most certainly was not intended as an ad hominem attack. The nine pages (out of 187) on which his work is cited fairly accurately reflects the extent to which his views figured in my thinking. Curiously, his ire seems most strongly aroused by my assault on his views on free will in which, apparently, I agree with nearly everything he says and, worse still, fail to cite him at all.     

A Conversation With Donald H. Blocher

Donald H. Blocher has been a major contributor and advocate in the field of counseling psychology for more than 30 years. He has written six books, more than 60 book chapters and journal articles, and has had several publications translated into international journals. He is a Fellow of the American Psychological Association, a recipient of the Distinguished Achievement Award from Harvard University, and a Fulbright Lecturer in the United Kingdom. Donald Blocher was interviewed on the occasion of his retirement after a distinguished career. In this conversation he discusses a wide range of provocative ideas as he looks back at his life as a developmental psychologist.     

Resistance in treatment as a means of avoiding inner conflict

It is not commonly known that, in his eighties, Michael Fordham sought the help of Donald Meltzer in what Dr Meltzer described as ‘more a weekly supervision of dreams than an analysis’. Dr Fordham is said to have commented that it was ‘a weekly supervision of my inner world - and you can't get closer to psychoanalysis than that’ He was greatly helped by these ‘supervisions’ and at the end of their work together, Meltzer suggested that Fordham wrote his memoirs. This resulted in The Making of an Analyst: Michael Fordham, published in 1993.

This fascinating account of Fordham's life and work contains much of interest about his personal development. He talks with candour about his confusions and passions in what is at times a surprisingly revealing manner. In particular Fordham talks openly about his closest relationships and how they affected him. The book was published, as he wanted it to be, after careful discussion with James Astor and Karl Figlio.

We are pleased to be able to publish the following contribution from Dr Meltzer about the book which he prompted. It is a mixture of personal responses on reading the book and memories of the man.     

MICHAEL POLANYI'S DEFENSE OF SPONTANEOUS ORDER

Michael Polanyi is best known for his work in epistemology and the philosophy of science. Less frequently discussed, but still a significant aspect of his work, is his political theory. He is an advocate of a free society which is based on "spontaneous order." This concept is apparent in an early collection of essays entitled The Logic of Liberty , and is emphasized again in his last book, Meaning. In the latter work, Polanyi's method of argumentation involves citing three objections to the endorsement of spontaneous order, and then offering a rebuttal to each. His discussion in this regard, while brief, provides an excellent opportunity for insight into a pivotal topic in his politics. In what follows here I will offer first a brief summary of Polanyi's position on spontaneous order and certain related concepts. Then I will examine his responses to the three objections he poses, and point out their deficiencies. Involved are a commonplace logical fallacy, the tendency to underestimate the power of economic interests and egoistic motivations, and, ultimately, an overstated and untenable epistemological position which does not adequately support, but instead undermines, his political position.     

Winnicott's response to Klein

The author suggests that, although Donald Winnicott presented some important criticisms of Melanie Klein's work, at times he tried to advance his perspectives too definitively without adequately considering her own. Because of this, he failed to acknowledge sufficiently that he was offering a model of human nature and development that could be revised. The fact that his differences with Klein arose in the context of a complex relationship in which each played numerous roles for the other, especially in the context of their affiliation with the British Psychoanalytical Society, periodically made it difficult for him to present his ideas more carefully and in his more characteristically open manner.     

Sonu Shamdasani interviewed by Ann Casement

Abstract :  Sonu Shamdasani interviewed by Ann Casement about Jung's  The Red Book: Liber Novus  in the course of which they range over issues to do with what drew Shamdasani to Jung; how he came to be involved in editing, translating and publishing  Liber Novus ; why he is so passionate about it; where it stands in relation to Jung's other work; some of the central figures that appear in the book such as  Philemon  and  Izdubar ; what  Liber Novus  might offer training candidates and succeeding generations of Jungians; how it has changed Shamdasani's own impression of Jung and what he hopes this enormous project will achieve; why Jung did not publish it in his own lifetime and whether he was mistaken in not doing so; and what impact the publication of  Liber Novus  will have on Jung's reputation worldwide as well as within the Jungian community.     

Developmental surface dyslexia and dysgraphia: An orthographic processing impairment

This study presents a detailed investigation of a young man in his early twenties who has suffered from a severe spelling impairment since childhood, and currently has a spelling age of only 9 years and 2 months. In contrast with the developmental phonological dyslexics reported by Campbell and Butterworth (1985) and Funnell and Davison (1989), his performance on tests of phonological awareness is good. In addition, he can read and spell non-words competently and, unlike normal 9-year-old children, virtually all of his spelling errors are phonologically appropriate. Further analysis of these errors reveals that he has knowledge of many of the different ways in which a given phoneme can be written, and that he uses phoneme-to-grapheme correspondences at the end of a word that are different from those he uses earlier in a word. However, he finds it difficult to spell words that contain uncommon phoneme-to-grapheme correspondences, which is compatible with the view that he has not developed an orthographic spelling lexicon. Although his oral reading of words is prompt and generally accurate, analysis of his lexical decision performance and the way that he defines homophones indicate that he does not have fully specified lexical entries available for reading either. We suggest that he suffers from a general orthographic processing deficit, and relies instead upon the combination of sub-lexical phonology and a lexicon that contains only partial information about way in which words are spelt. This leads to reasonably competent reading, even of many irregular words, but produces very poor spelling. It is argued that qualitatively different types of developmental dyslexia do genuinely exist, but that reading impairments are likely to be much more pronounced in children who have a phonological rather than an orthographic processing deficit.     

Father and Son: Freud Revisits his Oedipus Complex in <Emphasis Type="Italic">Moses and Monotheism</Emphasis>

In this paper, I propose to understand Freud on his own terms and within his social, intellectual and psychological context. It is my hope that such an understanding will contribute in turn to our understanding of some of the sources of the creative process. Were it not for his fame, Freud's views on religion, history and art, would at best be but a footnote to these subjects. My contention is that Freud's writings on these subjects can contribute more to our understanding of Freud, the person, than they do to some of the subjects he is writing about. Toward this end I will focus on two of Freud's works, written more than 30 years apart, his early Moses of Michelangelo and his late-life work Moses and Monotheism, which reflect the considerable changes in Freud's thinking.     

The composition of R. G. Collingwood's The New Leviathan

Collingwood's The New Leviathan is a difficult text. It comprises philosophy, political theory, political opinion and history in what is sometimes an uneasy amalgam. Despite its being the culmination of thirty years of work in ethics and political theory, the final text was clearly affected by the adverse circumstances under which it was written, these largely being Collingwood's illness which increasingly affected his ability to work as the writing of The New Leviathan progressed. This paper seeks to disentangle the composition of the book thereby shedding light on its distinctive character as the last substantial piece of philosophical work published in Collingwood's lifetime.     

Alonzo church:his life,his work and some of his miracles

This paper is dedicated to Alonzo Church, who died in August 1995 after a long life devoted to logic. To Church we owe lambda calculus, the thesis bearing his name and the solution to the Entscheidungsproblem.His well-known book Introduction to Mathematical LogicI, defined the subject matter of mathematical logic, the approach to be taken and the basic topics addressed. Church was the creator of the Journal of Symbolic Logicthe best-known journal of the area, which he edited for several decades

This paper is in three sections. The first is written in journalistic style:the story of the life of AlonzoChurch is told, including some of the many anecdotes I have collected from different sources. The secondpart is devoted to his work, but is far from being exhaustive. The last part is more original; in it I attempto show that Church’s great discovery was lambda calculus and that his remaining contributions weremainly inspired afterthoughts in the sense that most of his contributions as well as some of his pupils derivefrom that initial achievement. Included are Kleene’s Recursion Theory and the completeness proof ofHenkin. I have added an appendix in which is presented the typed lambda calculus and a proof of theundecidability of first-order logic     

Pure experience revisited: A critical reassessment of Nishida Kitaro's radicalization of William James' empiricism

In this paper, we will revisit the relation between the respective conceptions of pure experience of Nishida Kitaro and William James. As various authors have previously shown, comparing Nishida and James can not only help us better understand both of their specific understandings of pure experience, and consequently its position within their respective enterprises, but also give a platform with which to see how these two authors could contribute to contemporary discussions on philosophical methodology. However, despite the long history of comparative research on these two thinkers, there is still no consensus about the extent to which Nishida's philosophy actually resembles James' work at all. Was Nishida's interest in James' work found only in superficial similarities between two authors interested in overcoming the subject–object distinction? Or did Nishida attempt to somehow develop or radicalize James' work, taking his notion of pure experience into the realm of religion and metaphysics? In this contribution, we will agree with previous authors who have argued that Nishida is best understood as trying to go beyond or develop James' work. However, we will make this claim with the caveat that James had good reason not to take the avenues Nishida pursued, and that Nishida's attempt to radicalize some ideas in James may have led to some difficult points within his early philosophy.     

Morality,choice and inwardness

The present paper tries to analyse the way in which Judge William, in Sören Kierkegaard's work Either/Or, distinguishes between the aesthetic and the ethical way of life. Basically his distinctions seem to be that the ethicist is a seriously committed person (has inwardness) whereas the aestheticist is indifferent, and that the former accepts universal rules whereas the latter makes an exception for himself. — In order to come from the aesthetic to the ethical stage one must, according to Judge William, make a choice of oneself. We try to show that such a choice is only one among several factors implicit in his reasoning and that he does not at all consider it as a ‘leap’, but as based upon reasons, though his reasons are mostly of an aesthetic nature. Far from seeing the Judge as a champion of choice, we maintain that the book primarily contains a plea for a certain personality ideal. This probably has to do with the fact that he does not seem to be in doubt as to what one ought to do, only as to how to become a person who does what he ought to do. We shall also argue that a choice of oneself, as a matter of fact, is neither necessary nor sufficient in order to bring a person within the ethical stage, as described by the Judge. — A person who lives ethically does not, according to Judge William, necessarily act rightly, but his actions are either right or wrong, as opposed to the actions of the aestheticist which fall outside the domain of the ethical. In order to obtain a tenable distinction within his philosophy between ‘being within the ethical stage’ and ‘acting ethically rightly’ the first concept should be defined in terms of inwardness (serious commitment), the latter as inward conformity with certain universal rules. — This idea of inwardness, probably the most original and fruitful contribution of ‘Equilibrium’, seems to be based, however, like most of his ethical reasoning, on certain controversial assumptions about human nature.     

My Art by the Numbers

The author explains his affinity for numbers as it relates to his work as an artist spanning his long career. This affinity helped him invent one of the first systems for making four-color digital prints. Having been only recently introduced to the book Number and Time, by Marie-Louise von Franz, the author finds that he is in full agreement with her depth psychology theories on number. Recounting a synchronicity that he experienced while writing this paper helped the author to understand Jung’s concept of the unus mundus, as explained by von Franz in Number and Time. He speculates that number archetypes must have evolved in human consciousness over very long periods of time and writes about the number zero as a “recent” example. The author also describes his experience of a spontaneous mathematical vision that led him to create an algorithm, which in turn led him to realize that crystals having fivefold symmetry could exist in nature, which was considered impossible at the time. The author discusses his new inventions of quasi-periodic and random tile patterns, which were inspired by 15th-century Islamic tile patterns, as they related to the aperiodic patterns invented by Roger Penrose in the 20th century. He speculates about the ability of artificially intelligent computer software to be able to generate random quasi-periodic patterns. Lastly, the author recounts a synchronistic experience that occurred during the month of his 72nd birthday, in which his work with numbers is seemingly reciprocated by nature.     

Rousseau on Sex-Roles,Education and Happiness

Over the last decade, philosophers of education have begun taking a renewed interest in Rousseau’s educational thought. This is a welcome development as his ideas are rich with educational insights. His philosophy is not without its flaws, however. One significant flaw is his educational project for females, which is sexist in the highest degree. Rousseau argues that females should be taught to “please men…and make [men’s] lives agreeable and sweet.” The question becomes how could Rousseau make such strident claims, especially in light of his far more insightful ideas concerning the education of males. This paper attempts to make sense of Rousseau’s ideas on the education of females. While I maintain that Rousseau’s project for Sophie ought to be rejected, I argue that we should try to understand how this otherwise insightful thinker could make such surprising claims. Is it a bizarre inconsistency in his philosophical reasoning or an expression of his unabashed misogyny, as so many have claimed? I argue that it is neither. Rather, it is a product of his conception of human happiness and his belief in the irreducible role human sexual relations has in achieving and prolonging that happiness. For Rousseau, sex, love and happiness are inextricably connected, and he believes that men and women will be happiest when they inhabit certain sex roles—not because sex roles are valuable in themselves, but because only through them can either men or women hope to be happy.     

"圣人深见《易》道之无穷"--朱熹治《易》理路刍议

朱的治<易>体会.本文据此考察了朱子治<易>理路:一是对<易>道和<易>书的定位,认为圣人所深见的<易>道不仅仅指<易>的生生之道,而且还涵<易>书本为卜筮而作的本义;二是对治<易>困境的省思,认为因<易>之本义被遮蔽,且<易>道还需经历见得之故,故<易>成为难读的"天书".得出:朱子认定只有达至"此心大段虚明宁静"之境后,方可像圣人一样"深见<易>道之无穷",证成"学<易>无大过"的生命境界.     

RALPH BURHOE: RECONSIDERING THE MAN AND HIS VISION OF YOKING RELIGION AND SCIENCE

Ralph Wendell Burhoe was a leading figure in relating religion and science in the second half of the twentieth century. His autodidactic style and character as a public intellectual resulted in a vision that is comprehensive in its concern for the salvation of society. He does not fit easily into academic frameworks, even though he has been influential upon scholars who work in academia. This article discusses some conundrums posed by his work. There are also brief presentations of the concerns that motivated Burhoe, his style of work, and the content of his vision.     

The hazards of high callings

Summary To conclude, it is the concern of this paper that a minister have enough sources of satisfaction and security in his nonprofessional life so that he is not tempted to use his parishioners for the attaining of those needs. The pastor must be free of the need to use his parishioners, else he is working, not primarily for the parishioners' well-being, but rather for his own needs for success. He must notneed to see people converted, nor counseled successfully, nor saved from divorce. This would be only using these parishioners as a means by which the pastor proves his abilities. To guard against this danger, in a work so important as the ministry, is a difficult task. But it can be done when the pastor works at having a successful and satisfying private life. Such a private life pays dividends in the mental health of the pastor, and in parish work which is well done.