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[Koglist] [CEU Cogsci Talks] CogSci CEU Departmental Colloquium: October 22. Wednesday: Marc Ernst (Bielefeld University, Germany) - From Multisensory Perception to Sensorimotor Behaviour: A Probabilistic Approach

by Gyorgyne Finta

The CEU Department of Cognitive Science cordially invites you to a talk (as part of its Departmental Colloquium series) by Marc O. Ernst (Bielefeld University, Germany) Date: Wednesday, Oct 22, 2014 - 17:00 - 18:30 Location: Department of Cognitive Science, CEU, Frankel Leó út 30-34., Room G15 Title: >From Multisensory Perception to Sensorimotor Behaviour: A Probabilistic Approach Abstract: The human brain uses multiple sources of sensory information together with prior knowledge about the statistical regularities of the world in order to generate the most appropriate action. However, there is uncertainty due to noise and ambiguity in the sensory information. Furthermore, sensory information as well as prior knowledge may be imprecise and possibly inaccurate for the current action context. Therefore, a decision for choosing some action can only be taken probabilistically. Bayesian Decision Theory, which I will review here in this talk, provides a suitable probabilistic framework to come up with ideal observer models, against which human perception and performance can be compared. Besides an introduction to this general framework, I will talk about two of our recent studies in more detail, which are examples of the application of this framework to multisensory perception and action. The first study deals with the decision process, which signals to combine. Sometimes there are seemingly arbitrary association between multisensory signals such as, for example, sound frequency and spatial elevation. This goes so far that even in most natural languages the spatial labels -high- and -low- are used for particular sound frequencies. We recently showed (Parise et al., PNAS, 2014) the reason for this association to be found in the statistics of the natural environment where high frequency sounds are more likely to originate from a higher spatial elevation and vices versa. The second study (van Dam, Ernst, PLoS One, 2013) investigates the knowledge we have about the errors we make when executing actions. This is important because it is the knowledge about such errors that shapes sensorimotor learning. We show that we have a surprisingly detailed understanding of even the random errors we make and that we can use this knowledge in a statistically optimal way for the correction of the errors. I will end my talk with a discussion about the benefits and the limits of this framework. We're looking forward to see you there (Frankel Leo u. 30-34) ! Cognitive Science Events at CEU: http://cognitivescience.ceu.hu/events _______________________________________________ Subscribe by sending an empty mail to seminars-subscribe(a)cdc.ceu.hu Unsubscribe by sending an empty mail to seminars-unsubscribe(a)cdc.ceu.hu

11 years, 7 months

[Koglist] reminder: invitation to a talk on`Objects and Their Phases`-Tuesday, 4 November, 5.30 PM, Zrinyi 14, Room 412

by Krisztina Biber

The CEU Department of Philosophy cordially invites you to a talk (as part of its Departmental Colloquium series) by David Pitt (Cal State LA and CEU) on `Objects and Their Phases` Tuesday, 4 November 2014, 5.30 PM, Zrinyi 14, Room 412 ABSTRACT I propose to solve the puzzle of the relation of a clay statue to the lump of clay it’s made of in the following way. A clay statue is a phase of the clay it’s made of (the clay is its “material content”), in the same way that (liquid) water, ice and steam are phases of H2O. A statue is shaped clay; water is liquid H2O; ice is frozen H2O; steam is gaseous H2O. Likewise fists and hands (fists are clenched hands), paper airplanes and paper (paper airplanes are folded paper), ermines and stoats (ermines are white stoats), meteoroids, meteors, meteorites and rocks (orbiting, falling and fallen space rocks, respectively) – and, of course, lumps and the particles that constitute them. Thus, a statue and its constituent lump, though they are not identical, are not distinct physical objects occupying the same place at the same time. They are a lump and a phase of that lump occupying (necessarily – that statue is a phase of that lump) the same place at the same time. ‘Statue’ is a phase sortal that picks out a-material-content-with-a-certain-shape. (The name of a statue is a phase nominal that picks out the same thing.) It is something over and above the lump, but it is not some thing over and above the lump. I apply this way of looking at the relation between kinds of objects and their material contents to the univeralist-nihilist debate over material composition and to temporal and modal questions of material constitution. Krisztina Biber Department of Philosophy Coordinator ------------------------------------------ Central European University Nador u. 9. | 1051 Budapest, Hungary Office: + 36.1.327.3806 | biberk(a)ceu.hu | www.ceu.hu

11 years, 7 months

[Koglist] egy kis történeti cikk

by Pléh Csaba

http://www.akademiai.com/content/k32q06620080601r/

11 years, 7 months

[Koglist] MTA NYTI novemberi program

by Nyelvesz Info

Kedves Kollégák! Szeretettel várjuk az érdeklo"do"ket a Nyelvtudományi Intézet novemberi programjaira. 2014. november 6. (csütörtök) 15.00 óra Craige Roberts (Ohio State University - CEU) Beyond the Pragmatic Wastebasket: One perspective szervezo": Elméleti Nyelvészeti Osztály helyszín: földszinti elo"adóterem 2014. november 12. (szerda) 10.00 - 13.30 A Magyar Tudomány Ünnepe A korszeru" nyelvtudomány mint a jövo" alakításának eszköze helyszín: MTA Székház, Nagyterem http://www.nytud.hu/program/mtu2014/korszeru_nyelvtudomany.html 2014. november 13. (csütörtök) 17.15 óra Mády Katalin (MTA NYTI) Mitõl hosszú egy mezo"ségi hosszú magánhangzó? szervezo": Kísérleti és Analógiás Fonológia-Alaktan Kutatócsoport helyszín: földszinti elo"adóterem 2014. november 18. (kedd) 11.00 óra Marcel den Dikken (MTA NYTI - CUNY) Find the gap: On structure building and the formation of filler-gap dependencies in syntax szervezo": Elméleti Nyelvészeti Osztály helyszín: földszinti elõadóterem 2014. november 18. (kedd) 14.00 óra Hu Jianhua (Kínai Társadalomtudományi Akadémia Nyelvi Intézete) TBA szervezo": Elméleti Nyelvészeti Osztály helyszín: földszinti elo"adóterem 2014. november 18. (kedd) 16.00 óra Li Aijun (Kínai Társadalomtudományi Akadémia Nyelvi Intézete) szervezo": Elméleti Nyelvészeti Osztály helyszín: földszinti elo"adóterem 2014. november 19. (szerda) 10.00 - 16.00 A Magyar Tudomány Ünnepe - Kutatóintézetek tárt kapukkal A Többnyelvu"ségi Kutatóközpont Nyílt Napja "Többnyelvûség, sokszínûség - siket jelnyelv - nyelvi kisebbségek" helyszín: MTA NYTI földszinti elo"adóterem http://www.nytud.hu/program/mtu2014/ 2014. november 20. (csütörtök) 11.00 óra Heltainé Nagy Erzsébet (MTA NYTI) Nyelvi változások - nyelvi tanácsadás szervezo": Nyelvmu"velo" és Nyelvi Tanácsadó Kutatócsoport helyszín: földszinti elo"adóterem 2014. november 20. (csütörtök) 14.00 óra Balázs Surányi - Shinichiro Ishihara (MTA NYTI - Goethe University Frankfurt) Multiple positions of sentence-level prominence and prosodic recursion: Evidence from pre-verbal quantifiers in Hungarian szervezo": Elméleti Nyelvészeti Osztály helyszín: földszinti elo"adóterem 2014. november 25. (kedd) 11.00 óra Horváth László (MTA NYTI) Igevonzat-történeti kérdések szervezo": Szótári Osztály helyszín: földszinti elo"adóterem *** A részletekro"l, valamint az esetleges változásokról a honlapon tájékozódhatnak: http://www.nytud.hu/intprog.html MTA Nyelvtudományi Intézet 1068 Budapest, Benczúr u. 33.

11 years, 7 months

[Koglist] invitation to a talk on`Objects and Their Phases`-Tuesday, 4 November, 5.30 PM, Zrinyi 14, Room 412

by Krisztina Biber

11 years, 7 months

[Koglist] ELTE Kognitív Szeminárium: Geier János - Világosságillúziók modellezése

by Petia Kojouharova

Szeretettel hívunk meg minden érdeklődőt a Kognitív Szeminárium következő előadására: Geier János - Világosságillúziók modellezése 2014. november 7., 14:00-15:00, Izabella utca 46, P3-as terem Összefoglaló: A világosságillúziók közös jellemzője, hogy az ilyen képek bizonyos tartományait eltérő intenzitásúnak észleljük annak ellenére, hogy azok fizikailag azonos intenzitásúak. Ilyenek a 19 században már ismert szimultán kontraszt-, Chevreul-, Mach sáv- és Hermann rács illúziók. Újabbak a Craik-O'Brien-Cornsweet- (COC), White-, Logvinenko- illúziók és Adelson különféle illúziói. A világosságillúziók tankönyvi (pl. Seculer és Blake) klasszikus magyarázatai a laterális gátláson alapulnak, ezen belül is az ún. Baumgartner modellen, mely szerint a retinán "található" körkörös, ON középpontú és OFF körgyűrűvel bíró receptív mezők lennének "felelősek" pl .a Hermann rács foltjaiért, vagy a többi 19. sz. -ban ismert illúzióért. Ezt a magyarázatot azonban egyértelműen cáfolja saját, először 2001-ben bemutatott ötletem: a Hermann rács vonalainak enyhe görbítése egycsapásra megszünteti a kereszteződésekben látható illuzórikus foltokat. A laterális gátlás modellekkel szembeni további érv a 2011 -ben Hudák Mariannal közösen írt cikkünkben található, mely szerint, ha a Chevreul lépcsősort háttér luminancia rámpába helyezzük, az az irányától függően jelentősen felerősíti vagy legyengíti az eredeti illúziót. Ezek, és sok más érv alapján kijelenthető: a retina nem kódolja az abszolút luminanciát, csak a luminacia változását. Emiatt ezt a közvetlenül nem hozzáférhető abszolút luminanciát egy magasabb feldolgozási szinte rekonstruálnia kell a látórendszernek, hiszen másképp nem látnánk pl. homogén tartományokat. Előadásomban ismertetem azt a komputációs modellt és számítógépes szimulációját, amelyet magam dolgoztam ki világosság illúziók egységes modellezésének szándékával. Ez a modell itatóspapírra csepegtetett tinta, (vagy még inkább: fémlemez melegítése és hűtése) diffúziójának hasonlatára épül. Egy ilyen diffúziós folyamattal lehet rekonstruálni a hiányzó abszolút luminanciát. E diffúziós modell lényegét fogom ismertetni. Bemutatom az ezen alapuló számítógépes szimulációt is, élőben, ahogyan a komputer előállítja az input képek alapján azt az output képeket. Az output képek nagyon hasonlítanak az input képekhez, normál fényképnél nem is vehető észre az eltérés, ellenben a világosságillúziókat tartalmazó képeken a világosság viszonyok az emberi percepció szerint alakulnak. www.geier.hu Irodalom: Geier J, Bernáth L, Hudák M, Séra L, 2008, "Straightness as the main factor of the Hermann grid illusion" *Perception**37*(5) 651 – 665 Geier J, Hudák M (2011) Changing the Chevreul Illusion by a Background Luminance Ramp: Lateral Inhibition Fails at Its Traditional Stronghold - A Psychophysical Refutation. PLoS ONE 6(10): e26062. doi:10.1371/journal.pone.0026062, http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0026062

11 years, 7 months

[Koglist] [CEU Cogsci Talks] REMINDER: Kim Plunkett (University of Oxford), Wednesday, October 29, 5PM, Department of Cognitive Science

by Dora Kampis

Dear All, This is to remind you that the next talk in the CEU Cognitive Science seminar series will by given by: Kim Plunkett (University of Oxford): Date: Wednesday, October 29, 2014, 5 PM Location: Department of Cognitive Science, CEU, Frankel Leó út 30-34., Room G15 Title: How Infants Build a Semantic System Studies of early semantic development have traditionally described changes in the referential scope of early words, e.g., the range of objects that the infant associates with the word 'dog', as if infants learn object-label associations in isolation from each other. A proper understanding of semantic development should also provide an account of sensitivity to the meaning relations in the developing lexicon, and enumerate the the principles and processes by which the toddler constructs a network of meanings. In this talk, I will describe some recent graph theoretic attempts to describe semantic networks in early childhood and experimental methods to investigate the development of the lexical-semantic system. I will argue that the rudiments of a lexical-semantic system are in place before the child's second birthday. I will discusss whether infants attempt to construct a semantic network from the beginning of lexical development, or whether the early semantic system consists of lexical islands to which entries are added in a piecemeal fashion, only later later to coalesce into a network of meanings. PLEASE NOTE: Our seminar room has a limited capacity. Please arrive early to ensure you get a seat. The talk will begin promptly at 5. Cognitive Science Events at CEU: http://cognitivescience.ceu.hu/events _______________________________________________ Subscribe by sending an empty mail to seminars-subscribe(a)cdc.ceu.hu Unsubscribe by sending an empty mail to seminars-unsubscribe(a)cdc.ceu.hu

11 years, 7 months

[Koglist] PhD studies in perception and action

by Alen Hajnal

Kedves KogList olvasok! Szeretettel varok jelentkezoket. Udvozlettel, Hajnal Alen --------------------------------------- The Perception Action Cognition (PAC) Lab is looking for new graduate students with a starting date of August 2015. For research topics, please check out my google scholar profile: http://scholar.google.com/citations?user=c9bakr4AAAAJ&hl=en Current research topics include space perception affordances postural stability fractality of motor behavior What I am looking for in a graduate student is a dedicated, highly motivated person with excellent quantitative and behavioral statistics skills. The successful applicant will receive a full paid assistantship (with a monthly stipend and tuition waiver) that is renewable every year for 4 years. The deadline for applications is early January 2015. As part of the application package we require the submission of transcripts, GRE scores, TOEFL (for international applicants), statement of research interests, and 3 recommendation letters. Submit an application to the Experimental Psychology PHD program here: https://usmgrad.admissionpros.com/default.asp ---------- Alen Hajnal, PhD. Associate Professor Department of Psychology University of Southern Mississippi

11 years, 7 months

[Koglist] Theoretical Philosophy Forum, November

by Laszlo E. Szabo

THEORETICAL PHILOSOPHY FORUM Institute of Philosophy Faculty of Humanities, Eötvös University Address: Múzeum krt. 4/i, Budapest November Program 19 November (Wednesday) 5:00 PM Room 226 László E. Szabó Department of Logic, Institute of Philosophy, Eötvös University, Budapest Operationalist Approach to Quantum Theory: Two Representation Theorems 26 November (Wednesday) 5:00 PM Room 226 László Nemes Is philosophy an American discipline? _______________________________ Abstracts and printable program (poster) are available from the web site of the Forum: http://phil.elte.hu/tpf (Please feel free to post the program in your institution!) The Forum is open to everyone, including students, visitors, and faculty members from all departments and institutes! Format: 60 minute lecture, coffee break, 60 minute discussion. The organizer of the Forum: Laszlo E. Szabo (leszabo(a)phil.elte.hu) -- L a s z l o E. S z a b o Professor of Philosophy DEPARTMENT OF LOGIC, INSTITUTE OF PHILOSOPHY EOTVOS UNIVERSITY, BUDAPEST http://phil.elte.hu/leszabo

11 years, 7 months

[Koglist] [CEU Cogsci Talks] ANNOUNCEMENT: Kim Plunkett (University of Oxford), Wednesday, October 29, 5PM, Department of Cognitive Science

by Dora Kampis

Dear all, The next talk in the CEU Cognitive Science seminar series will by given by: Kim Plunkett (University of Oxford): Date: Wednesday, October 29, 2014, 5 PM Location: Department of Cognitive Science, CEU, Frankel Leó út 30-34., Room G15 Title: How Infants Build a Semantic System Studies of early semantic development have traditionally described changes in the referential scope of early words, e.g., the range of objects that the infant associates with the word 'dog', as if infants learn object-label associations in isolation from each other. A proper understanding of semantic development should also provide an account of sensitivity to the meaning relations in the developing lexicon, and enumerate the the principles and processes by which the toddler constructs a network of meanings. In this talk, I will describe some recent graph theoretic attempts to describe semantic networks in early childhood and experimental methods to investigate the development of the lexical-semantic system. I will argue that the rudiments of a lexical-semantic system are in place before the child's second birthday. I will discusss whether infants attempt to construct a semantic network from the beginning of lexical development, or whether the early semantic system consists of lexical islands to which entries are added in a piecemeal fashion, only later later to coalesce into a network of meanings. PLEASE NOTE: Our seminar room has a limited capacity. Please arrive early to ensure you get a seat. The talk will begin promptly at 5. Cognitive Science Events at CEU: http://cognitivescience.ceu.hu/events _______________________________________________ Subscribe by sending an empty mail to seminars-subscribe(a)cdc.ceu.hu Unsubscribe by sending an empty mail to seminars-unsubscribe(a)cdc.ceu.hu

11 years, 7 months

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