tjhorton@ai.toronto.edu ("Timothy J. Horton") (03/08/88)
============================================================================== UNIVERSITY OF TORONTO Cognitive Science Events, March-April 1988 (followed by additional Neuroscience event listings, below) ============================================================================== This will be the last issue for the current academic year. ============================================================================== March 1 (Tuesday), 2pm Artificial Intelligence Seminar Daniel Lehmann (Hebrew University, Jerusalem) "Models for non-monotonic logics" Sandford Fleming Buillding, rm 1105 ----- March 1 (Tuesday), noon Centre for Applied Cognitive Science, OISE Robbie Case (CACS and Applied Psychology, OISE) probably on (neo-Piagetian) stage theories of cognitive development and information processing OISE building, 2nd Floor, rm 211 ----- March 2 (Wednesday) 12:15 sharp Ebbinghaus Empire Derek Besner (Waterloo) about computational models and paradigms for reading research Sidney Smith Hall, rm 570 ----- March 4 (Friday), noon Erindale Psychology Colloquium Neil Charness (Waterloo) "A Case Study of a Musical Idiot Savant" Erindale Campus, South Building, rm 3129 ----- March 4 (Friday), 3pm Erindale/McMaster Cognitive Seminars Mary Lou Smith (Psychology, Erindale) "Aspects of Spatial Memory" Erindale Campus, rm 3129 ----- March 7 (Monday) Social Psychology Symposium "Cognition and the Judgements We Make about People" An all day symposium. See the latest issue of the UofT Bulletin. Scarboro Campus, rm H-305 ----- March 7 (Monday), 4pm McLuhan Literacy and Computing Seminar Series Mrs. Dale Willows "The Role of Visual Processing and Visual Memory in Reading and Spelling Disabilities" McLuhan Coach House (39A Queen's Park Cresent) ----- March 8 (Tuesday), 4-6pm Joint McLuhan Program / Dept Computer Science / University College "Language and Mind" Cognitive Science Seminar Ray Jackendoff (Linguistics & Cognitive Science, Brandeis U) "Consciousness and the Computational Mind" University College, rm 179 ----- March 8 (Tuesday), 4pm John Norton (Pittsburgh) "Is Space a Substance" (on the Hole Argument) University College, rm 152 ----- March 9 (Wednesday), 10am Linguistics Seminar Ray Jackendoff (Linguistics & Cognitive Science, Brandeis U) "Babe Ruth homered his way into the hearts of America" Library Science Auditorium, rm 205 ----- March 9 (Wednesday), 12:15 sharp Ebbinghaus Empire (human cognition and memory) Jonathon Schooler (Pittsburgh) "Verbal Smudging of Visual Memories: Some Things are Better Left Unsaid" Sidney Smith Hall, rm 570 ----- March 9 (Wednesday), 4pm Department of Psychology Colloquium Yaacov Trope (Hebrew University of Jerusalem) Topic T.B.A.; will be about attribution theory. Sidney Smith Hall, rm 2135 ----- March 11 (Friday), 12 noon Special lunchtime seminar at McLuhan Center David Sloan Wilson (Kellog Biological Station) "Mental Representations as Adaptive Structures" Contact Scott Findlay 978-5031 or -7178 for further info. McLuhan Coach House (39A Queen's Park Cres.) ----- March 11 (Friday), 12 noon Erindale Psychology Colloquium Ram Frost (Hoskins Laboratory & U of Connecticut) "Visual and Auditory Interaction in Word Recognition" Erindale Campus, South Building, rm 3129 ----- March 11 (Friday), 12:15pm Scarboro Brown Bag Seminars Gideon Keren (Institute for Perception, Soesterberg) "Gambling: Chance or Skill" Scarboro College, Council Chamber ----- March 11 (Friday), 3:30pm Linguistics Atelier Tom Dikinson (Zoology, University of Toronto) "The Syntax of Bird Calls" Linguistics Dept, Robart's Library, 6th Floor, rm 6071 ----- March 14 (Monday), 4-6pm Joint McLuhan Program / University College "Language and Mind" Cognitive Science Seminar Josef Perner (Laboratory of Experimental Psychology, U Sussex) "Children's model theory of mind" University College, rm 179 ----- March 15 (Tuesday), 2pm Artificial Intelligence Seminar Bruce Porter (U of Texas at Austin) "Toward the Automatic Construction and Extension of Knowledge Bases" Sandford Fleming Buillding, rm 1105 Abstract: This talk describes two programs resulting from our research in machine learning. The first, called Protos, is a learning apprentice which acquires knowledge for performing heuristic classification. We have applied Protos to the domain of clinical audiology. Our domain expert trained Protos with explained examples without the involvement of a knowledge engineer. Through this interaction, Protos has evolved into an expert system which correctly classifies and explains 98% of new cases and continues to learn during its use. Building Protos has forced us to scrutinize the usefulness of inductive learning and deductive classification. These inference methods have been widely studied in machine learning; however, their seductive elegance in artificial domains (e.g., mathematics) does not carryover to natural domains (e.g., medicine). In the Protos system, we relegate inductive learning and deductive classification to minor roles that support retaining, indexing, and matching exemplars. The second program is a knowledge-rich learner. We believe that learning involves integrating new information into an existing base of knowledge; learning takes place at the "fringes of knowledge." While this conjecture seems obvious, most machine learning programs, such as Protos, are largely ignorant. We are constructing a large-scale structured knowledge base in the domain of plant anatomy and physiology using Lenat's CYC system. Our learning program uses the knowledge base to explain (for itself) the plausibility of information from the teacher. Explanations integrate the new information into the expanding knowledge base and motivate follow-up questions and conjectures. ----- March 16 (Wednesday), 11am Artificial Intelligence Seminar Demetri Terzopoulos (Schlumberger Palo Alto Research Center) "Deformable Models In Computer Vision and Graphics" Sandford Fleming Building, rm 1102 Abstract: Vision and graphics are mutually converse disciplines; the former is concerned with the analysis of images, the latter with their synthesis. They pose similar problems at the object modeling level. I shall describe a physically-based approach to analyzing and synthesizing the shapes and motions of nonrigid objects. Objects are modeled using deformable curve, surface, and solid primitives, while constraints are represented as dynamic forces applied to these primitives. In the context of graphics (the direct problem), realistic images of flexible objects may be synthesized when the applied forces arise from the interaction of deformable models with simulated physical environments. With regard to vision (the inverse problem), deformable models may be used to infer the shapes and motions of objects from their images. Here the forces are derived from natural image data and enforce image-based constraints. They actively shape and move models to achieve maximal consistency with imaged objects of interest and to maintain the consistency over time. I will present results of applying deformable models to image contour extraction, stereo and motion correspondence matching, static 3D object reconstruction from monocular images, and the recovery of 3D shape and nonrigid motion of objects from dynamic stereo imagery. The video presentation will include computer animations of deformable models reacting to a variety of simulated physical phenomena. ----- March 16 (Wednesday), 12:15 sharp Ebbinghaus Empire (human cognition and memory) Keith Horton (Wilfred Laurier) "Inhibiting Priming Effects with Multiple Primes" Sidney Smith Hall, rm 570 ----- March 16 (Wednesday), 4pm Department of Psychology Colloquium Norman White (McGill) "The Effects of Glucose on Memory" Sidney Smith Hall, rm 2135 ----- March 17 (Thursday), 4pm Philsophy Department Colloquium Jagdish Hattiangadi (Philosophy, York) "Physiological Foundations of our Knowledge of the Mathematical Universe" 215 Huron, 10th Floor Lounge ----- March 18 (Friday), 3:30pm Linguistics Seminar Norbert Hornstein (U of Maryland) "Governed Pro" Robarts Library, 6th Floor, rm 6071 ----- March 22 (Tuesday), 12:15pm Center for Applied Cognitive Science, OISE Erwin Beck (visiting scholar at CACS, from St. Gallen, Switzerland) "The significance of 'cognitive self-experience' for perceiving and understanding meta-cognitive behavior" OISE Building, 2nd floor, rm 211 ----- March 22 (Tuesday), 4pm Philsophy Department Colloquium Alan R. White (U of Hull) "Barclay's Unimaginable Tree" University College, rm 152 ----- March 23 (Wednesday), 12:15 sharp Ebbinghaus Empire (human cognition and memory) Malcolm Jeeves (St. Andrews) "Neuropsychology of the Functions of the Corpus Callosum" Sidney Smith Hall, rm 570 ----- March 24 (Thursday), 4pm Philsophy Department Colloquium Hans Radder (Amsterdam) "The material realization of science: experimentation and scientific realism" 215 Huron, 10th Floor Lounge ----- March 25 (Friday), noon sharp Scarboro Brown Bag Seminars Graeme Hirst (Computer Science, Toronto) "Linguistic Ambiguity: What Research in Artificial Intelligence and Psycholinguistics have to say to each other" Scarboro College, Council Chamber ----- March 25 (Friday), noon Erindale Psychology Colloquium B. Goeffrey Galef, Jr. (McMaster) "No Rat is an Island: Social Factors in Feeding and Poison Avoidance in Norway Rats" Erindale Campus, South Building, rm 3129 ----- March 25 (Friday), 3:30pm Toronto Linguistics Atelier Alana Johns (MIT) "Deriving Ergativity" Robarts Library, 6th floor, rm 6071 ----- March 26 (Saturday), 10:30am Toronto Semiotic Circle Abrahim H. Khan (Trinity College) "A map of the concept melancholy in Kierkegaard (the author)" Abstract: The mapping of the concept is with constant reference to the Danish "Tungsind" in the Kierkegaard corpus. Bits and pieces of information on the concept are connected and visually displayed. The methodological procedures include two computer-based operations applied first to the entire corpus, and then to the specific text, 'Either/OR', in the corpus for a closer look at a section of the map. Northrop Frye Hall, rm 205 ----- March 28 (Monday), 4-6pm Joint McLuhan Program / University College "Language and Mind" Cognitive Science Seminar Stewart Shanker (Philosophy, York) "Learning and Automata Theory" University College, rm 161 ----- March 29 (Tuesday), 11am Computer Science Departmental Colloquium Susan Whitesides (McGill, visiting Toronto) "Geometric Motion Planning" (path planning for robotics) Sandford Fleming Building, rm 1105 ----- March 29 (Tuesday), 2pm AI Seminar Eduard Hovy (Information Sciences Institute of USC) "Planning Coherent Multisentential Text" Sandford Fleming Building, rm 1105 Abstract: Generating multisentential text is hard. Though most text generators are capable of simply stringing together more than one sentence, they cannot determine coherent order. Very few programs attempt to plan out the structure of multisentential paragraphs. Clearly, the key notion is coherence. The reason some paragraphs are coher- ent is that the information in successive sentences follows some pattern of inference or of knowledge with which the hearer is familiar, so that the hearer is able to relate each part to the whole. To signal such inferences, people usually link successive blocks of text in one of a fixed set of ways. The inferential nature of such linkage was noted by Hobbs in 1978. In 1982, McKeown built schemas (scripts) for constructing some paragraphs with stereotypical structure. Around the same time, after a wide-ranging linguistic study, Mann proposed a relatively small number of intersentential relations that suffice to bind together coherently most of the things people tend to speak about. The talk will describe a prototype text structurer that is based on the inferential ideas of Hobbs, uses Mann's relations, and is more general than the schema applier built by McKeown. The structurer takes the form of a standard hierarchical expansion planner, in which the relations act as plans and their constraints on relation fillers (represented in a formalism similar to Cohen and Levesque's work) as subgoals in the expansion. The structurer is conceived as part of a general text planner, but currently functions on its own. It is being tested in two domains: database output and expert system explanantion. ----- March 30 (Wednesday), 4pm Department of Psychology Colloquium Warren Holmes (U of Michigan) "Kin Recognition Rules and Early Social Experience" Sidney Smith Hall, rm 2135 ----- March 31 (Thursday), 10am Linguistics Seminar Howard Lasnik (U of Connecticut) "Some Issues of Case Theory" (this is a syntax talk) Robart's Library, 6th Floor, Museum Studies classroom ----- March 31 (Thursday), 3pm Linguistics Seminar Howard Lasnik (U of Connecticut) "Language Acquisition and Linguistic Theory" McLennan Labs Theatre, rm 137 ----- March 31, (Thursday) time and place TBA Artificial Intelligence Seminar Jim Delgrande (Simon Fraser University) "A Semantic Basis for Explicit Belief" Abstract: A general framework for the investigation of logical systems of belief that are both tractable and semantically well-motivated is presented. The approach extends standard possible worlds semantics in two ways. First, partial possible worlds, or situations, are employed. Second, the set of situations used to determine the truth of an explicit belief, $B alpha$, at a situation depends in part on the proposition expressed by $alpha$. It is argued that the approach provides a uniform semantics from which systems may be constructed, contrasted, and compared. Proofs of soundness and completeness are given directly in terms of this semantics and not, as is the case with previous work, by appealing to similar results in relevance logic. Thus the formal results also provide a connection between the semantic theory of possible worlds and that of relevance logic. Given this framework, we propose a specific system, BRPK, as a "preferred" model of explicit belief. This system arguably retains a strong intuitive basis, while avoiding the (perceived) pitfalls of earlier systems. Moreover it is tractable and permits iterated modalities. ----- April 4 (Monday), 4pm McLuhan Literacy and Computing Seminar Series Robert Arn (Educational Software Products) "Iconic Representations of Sentences" McLuhan Coach House ----- April 8 (Friday), 3pm Erindale/McMaster Cognitive Seminars Endel Tulving (Psychology, Toronto) "Brain Correlates of Episodic and Semantic Retrieval" Erindale Campus, rm 3129 ----- April 8 (Friday), 3:30 Linguistics Seminar Rochelle Lieber (U of New Hampshire) "Morphology and Morphemic Tier" Robarts Library, 6th floor, rm 6071 ----- April 12 (Tuesday), 2pm Artificial Intelligence Seminar Kenneth Forbus (University of Illinois) Probably about qualitative physics Sandford Fleming Building, rm 1105 ----- April 21 (Thursday), noon Erindale Psychology Colloquium Danny Algom (Pierce Foundation & Bar-Ilan Univ.) "Pain: A New Functional Approach" Erindale Campus, South Building, rm 3129 ----- April 27 (Wednesday), 1-4pm AI Interest Group Meeting at Ontario Hydro Call 592-6782 to register. Rik Robinson at 592-6774 for information. Hydro Place (700 University), Mezzanine Floor, Auditorium ------------------------------------------------------------------------------ Advance Announcements: ----- The University Lectures in Vision 1988, May 16-19, will be given by F.M. De Monasterio (National Institute of Health). The opening event will be a one day symposium on May 16th, which will include talks by other visitors (P. Kaiser, B. Tansley, P. Cavanagh, R. Beauchamp). Subsequent days will include discussion groups in the Departments of Computer Science and Physiology and lectures in the Departments of Anatomy and Opthalmology on the topography of cones and ganglion cells. For information, contact P.E. Hallett at 978-4339. ----- Dept of Psychiatry, 14th Annual Research Day, June 16 A series of short presentations (roughly 10 minutes each, several running simultaneously) on research by faculty of Psychiatry and others associated with the department. Keynote speaker will be Dr. Paul Garfinkel (psychiatrist in chief, Toronto General, and professor of Psychiatry). Dr. P.L. Darby (Wellesley Hospital) will chair. For information, contact Karen Drysdale, 979-2221 ext2455. ------------------------------------------------------------------------------ NEARBY ----- March 18 (Friday), 3:30pm Erindale/McMaster Cognitive Seminars Janet Hinchley (McMaster) "Developmental and Individual Differences in Story Processing" McMaster University, Psychology bldg, rm 204 ----- April 9th (Saturday) 8:45 am to 5 pm The Eye Research Institute of Ontario's Inaugural Symposium: "An Oculomotor Feast" Registration Open and Free Location: Addiction Research Foundation Auditorium, 33 Russell Street, Toronto Speakers: Stephen Lisberger (UCSF) Deficits in Visual Motion Processing Following Strabismus With Onset in Infancy F. A. Miles (NEI) Visual Mechanisms Underlying Stabilization of the Eyes John Porter (U of Miss) Muscles of a Different Color: The Unique Morphology and Morphopathological Responses of Primate Extraocular Muscle D. M. Regan (York & Toronto) Vergence Eye Movements and Stereopsis David A. Robinson (Wilmer Institute) Saccadic Control Signals Depend on Eye Position But Saccades Do Not - A Mystery Josh Wallman (CUNY) Does Retinal Activity Control Eye Growth? Discussant: James Sharpe, The Playfair Institute, Toronto Inquiries to: Prof. Martin J. Steinbach, Atkinson College, York University, North York, Ontario M3J 1P3, Canada. Telephone (416) 736-5202. E-mail address: YFPY0249@YORKVM1.BITNET Sponsored by The Eye Research Institute of Ontario (William P. Callahan, MD, Chairman); the Departments of Ophthalmology, University of Toronto and Hospital for Sick Children; and Atkinson College, York University. ----- Tenth Annual Conference of the Cognitive Science Society, August 17-19 This international conference will be held at (almost nearby) McGill University this year. The conference will feature symposia and invited speakers on the topics of problem solving, educational and professional applications of cognitive science, language processing, cognitive development, the relationship between cognitive and neural sciences, and recent developments in parallel distributed systems. The conference schedule will include paper sessions, symposia, and a poster session, covering the full range of the cognitive sciences. Invited speakers: Philip Johnson-Laird (Applied Psychology, Cambridge), Alan Newell (Computer Science, Carnegie-Mellon), Kenneth Wexler (Brain and Cognitive Sciences, MIT), Gordon Bower (Stanford) Invited symposia: cognitive science issues in medical problem solving and decision making; psychological issues in natural langauge processing; new directions in cogitive aging research; foundations of PDP systems; scientific reasoning; transition mechanisms in cognitive development; neurological correlates of PDP models and their biological basis Registration: Nonmember $200 Member $150 Student $100, before June 17 Contact: (514) 398-3770, Cognitive Science Secretariat, 3450 University Street, Montreal, H3A 2A7 [I have applications materials - ed.] Note that McGill has recently announced a new Cognitive Science program. [I believe this program is at the graduate level, in which case it is the first in Canada to the best of my knowledge. -ed.]. ------------------------------------------------------------------------------- Toronto Semiotic Circle Semiotics is the study of systems of "signs" and "symbols", though an untutored introduction to the goings on of the semiotic community wouldn't immediately suggest such a simple description. The ninth "International Summer Institute for Semiotic and Structural Studies" took place here at U of T last summer; it included courses and lectures in linguistics, artificial intelligence (computational linguistics and knowledge representation), theories of meaning, cognitive philosophy, and a great many other topics not so closely related to cognitive science. What follows is a description loosely extracted from an issue of the biannual \\International Semiotic Spectrum\\ newsletter: The Toronto Semiotic Circle, founded in 1973 by members of the University of Toronto, is an interdisciplinary association whose object is the discussion, communication and promotion of research in semiotics. The Circle takes the field of semiotics in the broadest sense, to include the theoretical and empirical study of signs, sign systems and processes, signaling and communicative behavior, and their biological and social foundations. It organizes monthly meetings and occasional seminars, at which papers are presented and discussed, and with the co-operation of other organizations publishes the International Semiotic Spectrum (circulation 7,000) and a monograph series. Membership fees are $25 ($10 student) per annum. For information about the society, you might contact Professor Paul Bouissac, rm 305, Northrop Frye Hall, University of Toronto, Toronto, M5S 1K7, (416) 585-4456. Prof. Bouissac has generously offered to supply some number of copies of the \\International Semiotic Spectrum\\ newsletter. If all goes well, copies will be forwarded to those on the \\Toronto Intelligence\\ mailing list in the next few weeks, to afford a peek at what's happening in the semiotic community. ------------------------------------------------------------------------------- "Language and Mind" Cognitive Science seminar series Jointly sponsored by the McLuhan Program, University College, and Department of Computer Science, the "Language and Mind" seminar series is currently underway. This, the 5th annual such undertaking, deserves special mention among the many events in the coming weeks, as it is aimed at the cognitive science community as a whole. Coming speakers include Ray Jackendoff on March 8, Josef Perner on March 14, and Stewart Shanker on March 28. Jackendoff (a linguist from Brandeis U) has done work on relationships bet- ween general cognition (including perception) and semantics; he will speak on "Consciousness and the Computational Mind". Perner (a developmental psychologist, U Sussex) has done work on children's ideas about the mind, and computational models; he will speak on "Children's Model Theory of Mind". Schanker (a philosopher from York) closes the series with "Learning and Automa Theory". ------------------------------------------------------------------------------- ENDNOTE: Last Issue of \\Toronto Intelligence\\ for Current Academic Year It has been quite interesting to watch the goings on across several departments throughout the year. The resources available to this newsletter (both time and money) have run out, at least for the current year, so this will be the last issue. The end of the academic season will see a sharp drop in activity, in any case. Thanks to dozens of "informers" across the university. Somehow the many people that make cognitive science events happen at this university should be credited (there isn't the time or space to do it here!) The McLuhan Program has paid the lion's share of publication costs for put- ting out what is now approaching 400 issues of this newsletter each month. In addition, the Centre for Applied Cognitive Science in OISE, and Departments of Computer Science, Linguistics, Philosopy, and Psychology have each contributed to the publication of the cognitive science directory. One final note -- some interesting possibilities. A group of faculty from several departments has been meeting to discuss options for cognitive science here at U of T. Three meetings have taken place, including one with David Nowlan (VP, Research) and one with Robin Armstrong (Dean of Arts and Science). There seems to be support for some sort of cognitive science entity, but money is a significant constraint, as one might expect. One possibility being investigated is the creation of a Center for Cognitive Science within the university (which might attract newly announced federal money -- much as Western Ontario's Center for Cognitive Science attracted Provincial Center of Excellence money). Robert Lockhart (chair, Psychology, ext 3406) has called the meetings thus far, and is probably a good person to offer your suggestions to. =============================================================================== From the "Toronto Intelligence" newsletter on cognitive science, Vol 1, Iss 7 =============================================================================== ------------------------------------------------------------------------------ Some related events in Neuroscience [not printed in the newsletter] March 4 (Friday), noon Physiology Neural Group Seminar Jan Huizinga (McMaster) "Pacemaker activity in intestinal coronary vessels" Medical Sciences Building, rm 3227/3221 ----- March 4 (Friday), 2pm Jean-Marie Matthieu (Laboratory of Neurochemistry, Centre Hospitalier Universitaire Vaudois Lausanne) "Molecular and Neurochemical Studies on Myelination in Normal and mld Mutant Mice" Mount Sinai Research Institute, rm 968 ----- March 4 (Friday), noon J. Huizinga (McMaster) "Pacemaking Activity in INtestinal Coronary Vessels" Medical Sciences Building, rm 3227/3221 ----- March 11 (Friday), noon Physiology Neural Group Seminar M. Filion (Laval) "Electrophysiological Studies in Parkinsonian (MPTP) monkeys" Medical Sciences Building, rm 3227/3221 ----- March 16 (Wednesday), 4pm Neuroscience Program, Nobel Laureate Address Rosalyn Yalow (Nobel Laureate) "Radiation and Society" Medical Sciences Building Auditorium ----- March 18 (Friday), noon Physiology Neural Group Seminar Julie Mendelson (postdoc in Physiology) "Mechanisms of Sound Localization in Auditory Cortex" Medical Sciences Building, rm 3227/3221 ----- March 24 (Thursday), 4pm Physiology Departmental Seminar Carol Greenwood (Nutritional Sciences) "Influence of Dietary Fat on Neuronal Membrane Composition and Function" Medical Sciences Building, rm 3227 ----- March 25 (Friday), 12 noon Physiology Neural Group Seminar M. Ptito (U Quebec) Title TBA Medical Sciences Building, rm 3227/3221 ----- March 31 (Thursday), 4pm Physiology Departmental Seminar David McCracken (Physiology) "Adaption to cold in man" Medical Sciences Building, rm 3227 ----- April 7 (Thursday), 4pm Physiology Departmental Seminar Series Derek van der Kooy (Anatomy) "Why the brain looks the way it does. Pattern formation in the developing mammalian forebrain" Medical Sciences Building, rm 3227 ----- April 11 Frontiers in Physiology and Pharmacology (FIPP) Symposium this week ----- April 21 (Thursday), 4pm Physiology Departmental Seminar Series Dr. Vincent F. Castellucci (director, Neurobiology Laboratory, Clinical Research Institute of Montreal) "Further Analysis of Short-term and Long-term Sensitization in Aplysia" Medical Sciences Building, rm 3227 ----- April 22 (Friday), 12 noon Physiology Neural Group Seminars Kenji Kawakita (visiting scientist, Kyoto, Japan) "Analgesia induces by selective activation of a polymodal receptor" Medical Sciences Building, rm 3227/3221 ----- May 20 (Friday), 1:30-3pm Clarke Institute Clinical Research Seminars Mr. Isaac Smith (Clarke) "Issues in Clinical Neuropsychology" Clarke Inst, boardroom (rm 801) ------------------------------------------------------------------------------