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VISEGRAD '95 Megismerestudomanyi Konferencia Elso Korlevel

by PLEH＠IZABELL.elte.hu

Kedves Kollegak, Baratok, Tamogatok es Erdeklodok, Mint tavaly megallapodtunk benne, a Harmadik Magyar Megismerestudomanyi Konferenciat 1995. januar 13 es 15 kozott rendezzuk meg, ismet Visegradon. A szervezo a Magyar Megismerestudomanyi Alapitvany, az ELTE Altalanos Pszichologiai Tanszeke es a Magyar Pszichologiai Tarsasag Altalanos Pszichologiai Szekcioja. Az idok azert igy alakultak, mert (1) tobbek keresere nem akarunk utkozni a neurobiologusokkal, (2) 19-e korul egy kotodeselmeleti tanfolyam lesz, mely tobbeket erint. Kicsit kesunk a szervezessel, ennek is van oka: meg mindig bizonytalan, egyaltalan nyitva lesz-e az udulo - de hiszunk benne. A varhato koltseg - ezekrol a technikai kerdesekrol 10 napon belul vegleges levelet kuldunk - szerintem 3000 Ft. Ebbol a szallas s haromnapi etkezes kb. 2000 (errol lesz uduloi szamla), a tobbi a kozos koltseg (sokszorositas, terem stb.). Remelem, ez utobbiakrol tudunk adni egy alapitvanyi hozzajarulasi igazolast. Termeszetessen a nem evo nem alvo kollegaknak ingyenes, ok absztraktot sem kapnak. A felepites kisse elter a tavalyitol: mint megallapodtunk benne, nehany elore elkeszitett temafelvezeto eloadas lesz, ezeknek vitaja mellett a tobbi resztvevo hozzajuk kapcsolodva jelentkezhet rovidebb, mintegy 20 perces - pl. empirikusabb - dolgozatokkal. Atfogo temank egyszeruen A tanulas helye a kognitiv gondolkodasmodban Ha ez nem eleg elegans valakinek: A kognitiv rendszerek idoi dinamikaja A felkert felvezetoknak egy resze megadta mar az elodast. Azoknal melle irjuk, pontosan mi a nevuk az email hozzaferesben. Hozzaferesi ut: ftp izabell.elte.hu user:anonymous password: sajat email cimed. Utana automatikusan a pub alatt vagy. Ekkor cd visegrad.95, itt lesz egy direktori innen a szokasos get filenevvel viheto at (pld get kampis). A szovegekkel kapcsolatos infok a dirinfo fileban. A szovegek november 11-tol erhetoek el. Nehany nap mulva intezmenyi helyekre papirvaltozatot is kuldunk az addig meglevokrol. Felkert eloadaok s hozzavetoleges idopontok (A cimek reszben munkacimek meg, es termeszetesen mindhez jonnek majd a kiselodasok.) Pentek 10h: Nyiri Kristof: Tudas, tanulas, hagyomany Benedek Andras: Indukcio es tanulas Pentek delutan: Csanyi Vilmos: Tanulas es az evolucios paradigma Kampis Gyorgy: A mesterseges elet es a fejlodes dinamikaja (/user/pub/visegrad.95/kampis) Szombat de: Gergely Gyorgy : Az innatizmus es a tanulas lehetosege Kovacs Ilona: A bemeneti rendszerek modosithatosaga a felnott kozponti idegrendszerben (/user/pub/visegrad.95/kovacs) Konya Aniko: A perceptualis emlek egy sokszoros ismereti rendszerben Szombat du Mero Laszlo: Tanulas es szakertelem (/user/pub/visegrad.95/mero, most kerul fel, tan holnap) Gobler Tamas: Tanulas biologiai es mesterseges halozatokban (/user/pub/visegrad.95/gobler) Nadasdy Zoltan: Hippocampusfiziologia es tanulas (kiseloadas) Vasarnap de: SZABAD SAV, azokra az eloadasokra, melyek nem a fotemahoz kapcsolodnak. KERESEINK A KOVETKEZOK (1) Kuldjetek vissza emailen vagy papiron az alabbi jelentkezesi lapot: Jelentkezem a Visegrad'95 Megismerestudomnyi Kongresszusra Nev: Cimek, elerhetoseg: (posta,email): Specialis keres: vegetarianus koszt kulon szoba Tovabbi anyagokat: emailen papiron kerem (Termeszetesen a vegleges anyagot ott mindenki megkapja papiron) Eloadast tartok: kiseloadas tanulasrol egyeb tema Kerem, a kovetkezo cimekre kuldjenek meg email illetve papir anyagot: (2) Ha TARTASZ ELOADST : 1 legfeljebb 2 lapos kivonatot kerunk december 10- ig. Papiron is: ELTE Altalanos Pszichologia Pleh Csaba Bp. Pf 4 1378 Az elfogadasrol es beosztasrol mindenki ertesitest kap meg karacsony elott. Tovabbi algoritmus reszunkrol: 10 napon belul pontos anyagi levelet kuldunk es tovabbi eloadas anyagokat. Januar elejen pontos program, absztrakt fuzet helyben lesz. Belso szervezonk az ugyben december 5-ig Gyori Miklos gyori(a)izabell.elte.hu, December 6-tol Pleh Csaba, pleh(a)izabell.elte.hu Udvozlettel: Gyori Miklos Pleh Csaba

31 years, 6 months

Re: (Fwd) Kovacs Ilona januari vision oraja

by PLEH＠IZABELL.elte.hu

ikovacs(a)cyclops.rutgers.edu Udv Pleh Csaba

31 years, 6 months

(Fwd) Kovacs Ilona januari vision oraja

by PLEH＠IZABELL.elte.hu

Forwarded message: From: <PLEH(a)IZABELL.elte.hu> To: everyone(a)izabell.elte.hu, dradam(a)ludens.elte.hu, BANYAI(a)IZABELL.elte.hu, h1872csa(a)ella.hu, KURGYIS(a)IZABELL.elte.hu Date: Tue, 8 Nov 1994 11:26:56 GMT+100 Subject: Kovacs Ilona januari vision oraja Priority: normal KEDVES KOLLEGAK, Kovacs Ilona, az ELTE Altalanos Pszicholgiai Tanszek es a Rutgers Egyetem munkatarsa 1995 januar 9 es 24 kozott intenziv kurzust tart angol nyelven a vizuaklis kutatasokrol. A Pszicholopgiaqi Doktori iskola kognitiv alreszenek regisztralt kurzusa ez 1995 tavaszi felevben. Szivesen latnank azonban mind mas doktopri iskolasokat (Adam es Csanyi professzoroktol peldalul), mind egyeb erdeklodoket. A pontos orabeosztast kesobb kozoljuk, valszinuleg minden munkanapon lesz ora. Szeretnenk azonban, ha az erdeklodok elojelentkeznenek pleh(a)izabell.elte.hu es kurgyis(a)izabell.elte.hu cimekene. Ennek oka a kovetkezo: az alabbi tematika es irodalmojegzeknek megfelello szovegyujtemenyt keszitunk meg decemberben. Ehhez kellene becsulnunk a letszamot. Kreditert jaro diakok szamara az olvaskonyv a SOROS Alapitvany HESP alapja tamogatasaval ingyenes. Udvozlettel s erdeklodeseteket elore is koszonve: Pleh Csaba ------------------------------------- The origins of "modularity" in visual science January, 1995 (seminar on visual perception held by Ilona KovVcs at Eptvps Lorand University, Budapest) The idea that the brain can be partitioned into more or less independent modules is one of the basic assumptions of modern neuroscience. Modularity can be viewed as a useful technical approach, and when it is not taken to the extremes, it helps scientist to define problems clearly, and ask questions that can be tested experimentally. Modularity is emphasized usually when the system under investigation seems to be very complex, and without the isolation of its parts, understanding is difficult. Once the existence of the parts is clarified, the interaction between them is the next question, and the system as a whole is coming back to the picture. From this point of view, modularity is not a philosophical issue, it is a natural way of the development of science. VISUAL PSYCHOPHYSICS AND THE ORIGINS OF "MODULARITY" My goal in selecting the papers for this textbook was to present an example of the birth of modularity within a specific field. In vision, a single demonstration drew attention to the fact that there are hidden capabilities in the brain to process raw perceptual information quite independently from high level cognitive operations. Julesz's random-dot stereograms proved that binocular disparity information in itself can be enough for us to extract the three dimensional structure of the environment (see Julesz, 1964, 1965). The demonstration defined the first clearly separable module of vision. As Julesz believed that there must be other modular aspects of vision, and these should be treated separately from the cognitive levels, he introduced the notion of "early vision". Early vision in the strict sense was believed to be mediated by autonomous, fast, parallel processes of the brain that are not penetrable for the higher cognitive levels. The approach was so fruitful that it opened a literally new field of research. As the questions about binocular vision could be now tested experimentally, not only psychologists, but physiologists too were able to join the new trend. The modular approach also opens the field for modelers both in the sense of constructing "vision machines" and in the sense of building a theory of vision. Julesz was one the firsts to offer a computational model of stereoscopic vision, and later of texture perception. As the properties of the modules started to become clear, of course the questions about their cooperation had to come up. That happened some 20 years after the discovery of the random-dot stereograms (it took many years, because it turned out that those "simple" input systems are, in fact, very complicated). Julesz was among the firsts to ask questions about the role of attention in visual processing Bergen and Julesz, 1983; Sagi and Julesz, 1985). The function of visual attention in this context is to serve as a glue that binds together the results of separated modules. And as coordination by attention and neural interactions are gaining more and more emphasize, different puzzles open up for the researchers and new concepts of modularity seem to be required (KovVcs and Julesz, 1994). COMPUTATIONAL VISION How did random-dot stereograms give rise to the field of computational vision? This question is answered in Marr's introductory chapter (Marr, 1982). What are the tacit assumptions underlying computational vision and what are the challenges that have been raised against them (see Ullman, 1991)? What can computational vision accomplish so far? An example, related to the modeling of biological vision is shown in Bergen and Landy's (1991) paper. NEUROPHYSIOLOGY As vision seems to be one if those faculties of mind that we share in a large extent with primates, it gives an exceptional opportunity for experimenters: human subjects can be asked verbally about their experiences, and monkeys can take part in physiological experiments, where the black box is being open. The results of these two different paradigms can be combined because of the similarity between the visual systems of humans and primates. We will see how did Poggio find the physiological correlates of random-dot stereograms (Poggio, 1991). An interesting extreme example of modularity is represented in Newsome et al's (1991) paper, where they report that stimulation of a very small number of neurons by the means of microelectrodes results in altered perceptual decisions, implying that a small bunch of neurons is responsible for the given behavior. I also included some recent findings about the architecture and interactions within the primary visual cortex (Gilbert, 1993) that may serve to explain the psychopysically found interactions (KovVcs and Julesz, 1994). The last two papers (Niebur and Koch, 1994, Fregnac, 1991) are dealing with the problems of integration and visual attention on a larger scale. The reader might be familiar with some of the context represented in this textbook, it might still be a hard task to thoroughly follow every articles since they come from diverse fields within visual science. To help in understanding the basic terminology and conceptual framework, I included a few chapters from a recent introductory Perception book (Sekuler and Blake, 1994). Contents INTRODUCTION TO VISUAL PERCEPTION R. Sekuler, R. Blake: Perception (chap 3-5) MacGraw-Hill, Inc., 1994 VISUAL PSYCHOPHYSICS AND THE ORIGINS OF "MODULARITY" B. Julesz: Binocular depth perception without familiarity cues. Science, Vol 145, 356-362, 1964 B. Julesz: Texture and visual perception. Scientific American, Vol 212, 38-48, 1965 J.R. Bergen and B. Julesz: Parallel versus serial processing in rapid pattern discrimination. Nature, Vol.303, 696-698, 1983. D. Sagi and B. Julesz: "Where" and "what" in vision. Science, Vol.228, 1217-1219, 1985. I. KovVcs and B. Julesz: Perceptual sensitivity maps within globally defined visual shapes. Nature, Vol 370, 644-666, 1994. COMPUTATIONAL VISION D. Marr: The philosophy and the approach. in: D. Marr: Vision. W.H.Freeman and Company, New York, 1982 S. Ullman: Tacit assumptions in the computational study of vision. in: A. Gorea (ed.): Representations of Vision, Cambridge University Press, Cambridge, 1991 J. Bergen and M.S. Landy: Computational modeling of visual texture segregation. in: M.S.Landy and J.A. Movshon (eds) : Computational models of visual processing,a Bradford Book, MIT Press, 1991. NEUROPHYSIOLOGY G. F. Poggio: Physiological basis of stereoscopic vision. in: D. Regan (ed.): Binocular vision, Macmillian Press, 1991 C.D. Gilbert: Circuitry, architecture, and functional dynamics of visual cortex. Cerebral Cortex, 3, 373-386, 1993. W. Newsome et al.: Manipulating perceptual decisions by microstimulation of extrastriate visual cortex. in: A. Gorea (ed.): Representations of Vision, Cambridge University Press, Cambridge, 1991 E. Niebur, C. Koch: A model for the neuronal implementation of selective visual attention based on temporal correlation among neurons. J.Comp.Neurosci, 1, 141-158, 1994 Y. Fregnac: How many cycles make an oscillation? in: A. Gorea (ed.): Representations of Vision, Cambridge University Press, Cambridge, 1991 --------------------------------

31 years, 6 months

Neuropsychology/Consciousness: BBS Call for Commentators

by Stevan Harnad

Below is the abstract of a forthcoming target article by: Jeffrey Gray on: CONSCIOUSNESS AND NEUROPSYCOLOGY This article has been accepted for publication in Behavioral and Brain Sciences (BBS), an international, interdisciplinary journal providing Open Peer Commentary on important and controversial current research in the biobehavioral and cognitive sciences. Commentators must be current BBS Associates or nominated by a current BBS Associate. To be considered as a commentator for this article, to suggest other appropriate commentators, or for information about how to become a BBS Associate, please send email to: harnad(a)clarity.princeton.edu or harnad(a)pucc.bitnet or write to: BBS, 20 Nassau Street, #240, Princeton NJ 08542 [tel: 609-921-7771] To help us put together a balanced list of commentators, please give some indication of the aspects of the topic on which you would bring your areas of expertise to bear if you were selected as a commentator. An electronic draft of the full text is available for inspection by anonymous ftp (or gopher or world-wide-web) according to the instructions that follow after the abstract. ____________________________________________________________________ THE CONTENTS OF CONSCIOUSNESS: A NEUROPSYCHOLOGICAL CONJECTURE Jeffrey A. Gray Department of Psychology Institute of Psychiatry De Crespigny Park, Denmark Hill London SE5 8AF, England jgray(a)ux.psych.lon.ac.uk ABSTRACT: Drawing on previous models of anxiety, intermediate memory, the positive symptoms of schizophrenia and goal-directed behaviour, a neuropsychological hypothesis is proposed for the generation of the contents of consciousness. It is suggested that these correspond to the outputs of a comparator that, on a moment-by-moment basis, compares the current state of the organism's perceptual world with a predicted state. An outline is given of the information-processing functions of the comparator system and of the neural systems which mediate them. The hypothesis appears to be able to account for a number of key features of the contents of consciousness. However, it is argued that neither this nor any existing comparable hypothesis is yet able to explain why the brain should generate conscious experience of any kind at all. KEYWORDS: Conciousness, contents of consciousness, comparator, septohippocampal system, anxiety, schizophrenia. -------------------------------------------------------------- To help you decide whether you would be an appropriate commentator for this article, an electronic draft is retrievable by anonymous ftp from princeton.edu according to the instructions below (the filename is bbs.gray). Please do not prepare a commentary on this draft. Just let us know, after having inspected it, what relevant expertise you feel you would bring to bear on what aspect of the article. ------------------------------------------------------------- To retrieve a file by ftp from an Internet site, type either: ftp princeton.edu or ftp 128.112.128.1 When you are asked for your login, type: anonymous Enter password as queried (your password is your actual userid: yourlogin(a)yourhost.whatever.whatever - be sure to include the "@") cd /pub/harnad/BBS To show the available files, type: ls Next, retrieve the file you want with (for example): get bbs.mealet When you have the file(s) you want, type: quit These files can also be retrieved using gopher, archie, veronica, etc. URL: ftp//ftp.princeton.edu/pub/harnad/BBS/bbs.gray http://www.princeton.edu/~harnad/bbs.html gopher://gopher.princeton.edu/11/.libraries/.pujournals ---------- Where the above procedure is not available there are two fileservers: ftpmail(a)decwrl.dec.com and bitftp(a)pucc.bitnet that will do the transfer for you. To one or the other of them, send the following one line message: help for instructions (which will be similar to the above, but will be in the form of a series of lines in an email message that ftpmail or bitftp will then execute for you). JANET users without ftp can instead utilise the file transfer facilities at sites uk.ac.ft-relay or uk.ac.nsf.sun. Full details are available on request. -------------------------------------------------------------

31 years, 6 months

visit of Propfessor Dressler

by PLEH＠IZABELL.elte.hu

Professor Wolfgang Dressler Vienna University will be the guest of the Cognitive program of Altalanos Pszichologiai Tanszek at ELTE. He will be staying in Izabella 46 and his local host wiil be Zsuzsa Vinkler (vinkler(a)izabell.elte.hu). Please contact her with any querries. His professional program is the following. Please post it and circulate. November 3rd: Thursday 10 - 11h30 AM. Kiefer Ferenc Morphopragmatics class. Szinhaz utca (Nyelvtudomanyi Intezet) 2 P.M. Izabella 46, 403: The naturalist approach in linguistics Examples from morphology and discourse 6 P.M. talk with the phasia people in your appartment in Izabella street. November 4th, Friday 11. A.M. Inflection classes and their acquisition Szinhaz utca (Nyelvtudomanyi Intezet) PhD students should be able to arrange meetings with Professor Dressler on his talks. All are wellcome Pleh Csaba

31 years, 6 months

keddi szem: november

by Miklos Gyori

Az Altalanos Pszichologiai Tanszek K E D D I S Z E M I N A R I U M ainak N O V E M B E Ri programja november 1. GEIER Janos: Az IRIS Indigo (LILA) grafikus munkaallomas felhasznalasi lehetosegeinek bemutatasa november 8. GERGELY Gyorgy: Az eszme'lkede's lelektana - Gergely es Watson november 15. SZOKOLSZKY Agnes: O:kologiai pszichologia november 22. PLEH Csaba, VINKLER Zsuzsa et al.: Elofeszites a mentalis lexikonban es az alaktani feldolgozas november 29. BOCZ Andras: Konnekcionizmus es nyelvi feldolgozas Az eloadasok idopontja tovabbra is kedd, 12.00 - 13.00, helye a 403. terem (Izabella u. 46). Es tovabbra is minden erdeklodot szeretettel var az ELTE Altalanos Pszichologiai Tanszek.

31 years, 6 months

A tudasszociologia eros programja

by gergo＠cdu.ucl.ac.uk

Forwarded from: FABIAN(a)ZEUS.COLBUD.HU ------------------------------------------------------------------------------- Az IUHPS/DLMPS hazai bizottsaga es az MFT hazai tudomanyfilozofiai tagozata szeretettel mehgivja Ont a TUDASSZOCIOLOGIA EROS PROGRAMJAROL cimu kerekasztal beszelgetesre. helye: Budapesti Muszaki Egyetem, Oktatoi Klub (Foepulet, I. em. 66) idopont: oktober 27 (csutortok) 18 ora Forrai Gabor Margitay Tihamer

31 years, 6 months

vedes: Kampis Gyorgy

by gergo＠cdu.ucl.ac.uk

vedes: Kampis Gyorgy Kedves Kollegak, minden erdeklodot szeretettel varunk. udv Kampis. ----------------------------------------------------------------------- MEGH'IV'O A TUDOM'ANYOS MIN"OS'IT"O BIZOTTS'AG megh'ivja "Ont KAMPIS GYORGY "ONM'ODOS'IT'O RENDSZEREK" c'im"u doktori 'ertekez'es'enek 1994. november 3.-'an 9:00 'orakor a Magyar Kult'ura Alap'itv'any (Kult'urinnov) Budav'ar Term'eben (Bp. I., Szenth'aromsag t'er 6.) tartand'o nyilv'anos vit'aj'ara. Az 'ertekez'es opponensei: 'Erdi P'eter, a k'emiai tudom'any doktora (MTA RMKI) Pl'eh Csaba, a pszichol'ogiai tudom'any kandid'atusa (ELTE \'Alt. Pszich. Tsz.) V'amos Tibor, akad'emikus, a m"uszaki tudom'any doktora (MTA SZTAKI) Az 'ertekez'es megtekinthet"o az MTA K"onyvt'ar'aban (Bp. V., Arany J. u. 1). A nyilv'anos vit'aban minden jelenl'evo r'eszt vehet 'es el"ozetesen 'ir'asban is 'eszrev'etelt tehet. A TUDOM'ANYOS MIN"OS'IT"O BIZOTTS'AG

31 years, 6 months

meghivo: keddi szeminariumok

by Miklos Gyori

M E G H I V O Az ELTE Altalanos Pszichologiai Tanszeke "KEDDI SZEMINARIUM"-ainak kereteben 1994. oktober 25-en, kedden 12.00 - 13.00 -ig, az Izabella u. 46. IV. em. 403-as teremben FARKAS MA'RIA Az implicit emlekezet vizsgalata agyserulteknel cimmel tart eloadast, amelyre ezuton is minden erdeklodot szeretettel meghivunk. ELTE Altalanos Pszichologiai Tanszek.

31 years, 6 months

Postdoc position (UK) - Categorization

by gergo＠cdu.ucl.ac.uk

--- Forwarded message follows --- From: Koen Lamberts <koen(a)vis.psg.bham.ac.uk> Subject: Postdoc position (UK) - Categorization Date: Sat, 15 Oct 1994 02:58:20 GMT Postdoctoral position in Cognitive Psychology University of Birmingham (UK) An ESRC-funded full-time research position is available for three years from 1st January, 1995. The appointed post-holder will carry out experimental and theoretical research on the time course of cognitive processes in categorization, in collaboration with Koen Lamberts and Glyn Humphreys. Candidates would need a strong research background in cognitive psychology or cognitive science. Experience in experimental design and analysis, formal model construction and model evaluation is essential. For further information, please contact Koen Lamberts School of Psychology University of Birmingham Edgbaston Birmingham B15 2TT U.K. or send e-mail to koen(a)vis.psg.bham.ac.uk.

31 years, 6 months

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