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| Aranya ALBERT | E. K. Shriver Center | USA | 
| Gail ALEXANDER | University College London | United Kingdom | 
| Abdullah AL-RUWAITEA, 1, 2 | University of Nottingham | United Kingdom | 
| Patrick AMENT, 1, 2 | Central Missouri State University | USA | 
| Marc S. ANDELMAN | University of Iowa | USA | 
| Paul J. H. ANDREOLI, 1, 2 | Moerborch Foundation | The Netherlands | 
| Carlos F. APARICIO, 1, 2 | University of Guadalajara | Mexico | 
| Juan ARDOY | Universidad Católica San Antonio de Murcia | Spain | 
| María Francisca ARIAS HOLGADO, 1, 2 | Universidad de Sevilla | Spain | 
| Erik ARNTZEN | University of Oslo | Norway | 
| Grauben ASSIS | Universidade Federal do Pará | Brazil | 
| M. BAGOZKAJA | Moscow State University | Russia | 
| Dermot BARNES-HOLMES, 1, 2, 3 | National University of Ireland | Ireland | 
| F. J. BARRERA | Southwestern Regional Centre | Canada | 
| Anjali BARRETTO | The University of Iowa | USA | 
| Margaret H. BELL | University of Wales | Wales | 
| Santiago BENJUMEA, 1, 2, 3, 4, 5 | Universidad de Sevilla | Spain | 
| Richard P. BENTALL | University of Manchester | England | 
| Vern BINGMAN | Bowling Green State University | USA | 
| Otto BJOERTOMT | University College London | United Kingdom | 
| Wendy K. BERG, 1, 2 | The University of Iowa | USA | 
| Harrie BOELENS | Leiden University | The Netherlands | 
| Kim BOERMANS | University of Nijmegen | The Netherlands | 
| Cristóbal BOHORQUEZ, 1, 2 | Universidad de Sevilla | Spain | 
| Claudine BOYER | Université de Lille III | France | 
| Sébastien BOSCH | Western Michigan University | USA | 
| Chris M. BRADSHAW, 1, 2 | University of Nottingham | United Kingdom | 
| Marc N. BRANCH | University of Florida | USA | 
| Bart E. E. BRUINS, 1, 2, 3 | Constructional Behavior Analysis Foundation | The Netherlands | 
| Marie BURNS | Universityof Ulster | Northern Ireland | 
| Patrick BURNS | University of Liverpool | England | 
| M. C. S. CALDAS | Universidade Estadual de Campinas | Brazil | 
| Kevin CALLAHAN | University of North Texas | USA | 
| Sara CAMBLOR CHINEA | University of Oviedo | Spain | 
| Angélica CAPELARI | University of São Paulo | Brazil | 
| Ettore CARACCIOLO | Università degli Studi di Milano | Italy | 
| Alma CARROLL | Glasheen Girls National School | Ireland | 
| José Luis CASTILLA | Universidad Nacional de Educación a Distancia | Spain | 
| A. Charles CATANIA | University of Maryland, Baltimore County | USA | 
| Tung-Jung CHIANG, 1, 2 | University of Nottingham | United Kingdom | 
| Fabio B. CHIMOKA | Universidade Federal do Pará | Brazil | 
| Catharine CLAREBROUGH | University of Oxford | United Kingdom | 
| Shelley CLARKE | University of South Florida | USA | 
| Jim CLEARY | Department of Veterans Affairs Medical Center | USA | 
| John M. CLEAVELAND, 1, 2 | Germany | |
| Céline CLEMENT, 1, 2 | Université de Lille III | France | 
| Tricia CLEMENT | University of Kentucky | USA | 
| Jonathan COOPER | University of Oxford | United Kingdom | 
| Linda J. COOPER-BROWN, 1, 2 | The University of Iowa | USA | 
| Alain COURTIERE | Institut de Médecine Navale du Service de Santé des Armées | France | 
| Thomas S. CRITCHFIELD | Illinois State University | USA | 
| Veronica CULLINAN | National University of Ireland | Ireland | 
| Jean-Claude DARCHEVILLE, 1, 2, 3, 4, 5 | Université de Lille III | France | 
| Christophe DEBIEN | Université de Lille III | France | 
| Samuel DELEPOULLE, 1, 2 | Université de Lille III | France | 
| Irène DELIEGE, 1, 2, 3, 4 | Université de Liège | Belgium | 
| Maly DELITTI | Pontifícia Universidade Católica de São paulo | Brazil | 
| Juan D. DELIUS, 1, 2 | Universität Konstanz | Germany | 
| Julio C. DE ROSE, 1, 2 | Universidade Federal de São Carlos | Brazil | 
| Pauline DIBBETS | University of Nijmegen | The Netherlands | 
| David W. DICKINS, 1, 2 | University of Liverpool | United Kingdom | 
| Thomas E. DICKINS | London Guildhall University | United Kingdom | 
| Robert DIDDEN | University of Nijmegen | The Netherlands | 
| Claire DIEDERICH | Facultés Universitaires Notre-Dame de la Paix | Belgium | 
| Karola DILLENBURGER | The Queen's University | Northern Ireland | 
| Gérald DISMA, 1, 2 | Université de Picardie - Jules Verne | France | 
| Adam H. DOUGHTY | West Virginia University | USA | 
| John J. DOWNS | University of Liverpool | England | 
| William V. DUBE, 1, 2 | E. K. Shriver Center for Mental Retardation | USA | 
| Denise DUFFY | Glasheen Girls National School | Ireland | 
| Pieter DUKER | University of Nijmegen | The Netherlands | 
| Glen DUNLAP | University of South Florida | USA | 
| Simon DYMOND, 1, 2 | Anglia Polytechnic University | United Kingdom | 
| Janet ELLIS | University of North Texas | USA | 
| Daphna EL-ROY | City University of New York (CUNY) | USA | 
| Mihela ERJAVEC | University of Wales | Wales | 
| Christina FAIRHURST | University of Ulster at Coleraine | Northern Ireland | 
| Francisco FERNANDEZ-SERRA, 1, 2 | Universidad de Sevilla | Spain | 
| Elenice A. de Moraes FERRARI, 1, 2 | Universidade Estadual de Campinas | Brazil | 
| Pina FILIPPELLO, 1, 2 | Università degli Studi di Messina | Italy | 
| Debra FLUSSER | E. K. Shriver Center | USA | 
| Norah FREDERICKSON | University College London | United Kingdom | 
| Esteve FREIXA i BAQUE | Université de Picardie - Jules Verne | France | 
| Ester FRIDE | College of Jueda and Shomrom | Israel | 
| Andrea M. FRIEDRICH | Purdue University | USA | 
| Fred FURNISS | University of Leicester | United Kingdom | 
| Stephen Michael GALLAGHER | University of Ulster at Coleraine | Northern Ireland | 
| Andres GARCIA, 1, 2, 3, 4 | Universidad Nacional de Educación a Distancia | Spain | 
| Paula GARCIA-MARTINEZ | University of Oviedo | Spain | 
| Jacob L. GEWIRTZ | Florida International University | USA | 
| Evelyn GIBSON | University College London | United Kingdom | 
| Jean-Marie GIFFROY | Facultés Universitaires Notre-Dame de la Paix | Belgium | 
| Maria Stella C. A. GIL, 1, 2 | Universidade Federal de São Carlos | Brazil | 
| Yoav GINSBURG | Hebrew University of Jerusalem | Israel | 
| Sigrid S. GLENN | University of North Texas | USA | 
| Sara J. GOLDIE | University of Western Australia | Australia | 
| Daniel GOMEZ FUENTES | Universidad Veracruzana | Mexico | 
| Luis Eladio GOMEZ-SANCHO | Universidad de Sevilla | Spain | 
| Jaide Aprecida GOMES REGRA | Universidade de São Paulo | Brazil | 
| Jesús GOMEZ, 1, 2 | Universidad de Sevilla | Spain | 
| André GONTHIER-WERREN | Université de Neufchâtel | Switzerland | 
| María Jesús GONZALEZ-LASTRA | University of Oviedo | Spain | 
| R. Douglas GREER, 1, 2 | Columbia University | USA | 
| Lourdes GUERRERO SASTRE | Ramon Llull University | Spain | 
| Paula GURTEEN | University of Wales | Wales | 
| María Teresa GUTIERREZ, 1, 2, 3 | Universidad de Sevilla | Spain | 
| Jay HARDING | The University of Iowa | USA | 
| Jeanine HARDOUIN | Institut de Médecine Navale du Service de Santé des Armées | France | 
| David N. HARPER | Victoria University of Wellington | New Zealand | 
| Fay D. A. HARRIS | University of Wales | Wales | 
| Thierry HASBROUCQ | Centre de Recherche en Neurosciences Cognitives | France | 
| Linda J. HAYES | University of Nevada | USA | 
| Olive HEALY, 1, 2, 3, 4 | Glasheen Girls National School | Ireland | 
| Alejandro HERRERA | Universidad de Sevilla | Spain | 
| Bertina HILDRETH | University of North Texas | USA | 
| John HILLERY | National University of Ireland | Ireland | 
| Meng-Yang HO, 1, 2 | University of Nottingham | United Kingdom | 
| Hannah HOCH | City University of New York (CUNY) | USA | 
| Per HOLTH | University of Oslo | Norway | 
| Pauline J. HORNE, 1, 2, 3, 4, 5 | University of Wales | Wales | 
| Stephanie P. HORNE | West Virginia University | USA | 
| Peter HOWELL | University College London | United Kingdom | 
| Maria Martha HUBNER, 1, 2, 3 | Universidade Presbiteriana Mackenzie | Brazil | 
| J. Carl HUGHES | University of Wales | Wales | 
| Maree HUNT | Victoria University of Wellington | New Zealand | 
| Kenneth W. HUNTER | University of Nevada | USA | 
| Massimo HURLE, 1, 2, 3 | Università degli Studi di Milano | Italy | 
| Joseph. P. HUSTON | University of Düsseldorf | Germany | 
| Matthew L. ISRAEL | Judge Rotenberg Centre | USA | 
| Jeong Won JAHNG | Yonsei University College of Medicine | Korea | 
| Phil JIMMIESON | University of Liverpool | United Kingdom | 
| Jérémie JOZEFOWIEZ | Université de Lille III | France | 
| Hilary Jo KARP, 1, 2 | University of Houston | USA | 
| Annamaria KASZAS | University of Szeged | Hungary | 
| Olivia KATO | Universidade Federal do Pará | Brazil | 
| Linda J. KEELING | Swedish University of Agricultural Sciences | Sweden | 
| Richard KEEN | Indiana University | USA | 
| Michael KEENAN, 1, 2 | University of Ulster at Coleraine | Northern Ireland | 
| Dolleen-Day KEOHANE, 1, 2 | Columbia University | USA | 
| Dong Goo KIM | Yonsei University College of Medicine | Korea | 
| Eun-Mee KIM, 1, 2 | University of Ulster | Northern Ireland | 
| Joanne KLEDARAS | JK Consulting | USA | 
| Dimitra KONIARI | Université d'Aristotle de Thessaloniki | Greece | 
| Russell J. KORMANN | The State University of New Jersey | USA | 
| Viviane KOSTRUBIEC | Université de Lille III | France | 
| John F. KRAFT | Armstrong Atlantic State University | USA | 
| Patricia J. KRANTZ | Princeton Child Development Institute | USA | 
| Rosalba LARCAN | Università degli Studi di Messina | Italy | 
| Kennon A. LATTAL, 1, 2 | West Virginia University | USA | 
| Olga F. LAZAREVA, 1, 2 | Institute of Higher Nervous Activities | Russia | 
| Geraldine LEADER, 1, 2 | University of Ulster | Northern Ireland | 
| Maria Helena LEITE HUNZIKER, 1, 2 | University of São Paulo | Brazil | 
| Helga LEJEUNE | Université de Liège | Belgium | 
| Julian C. LESLIE, 1, 2, 3, 4, 5, 6 | University of Ulster | Northern Ireland | 
| Jay-Shake LI | University of Düsseldorf | Germany | 
| Gregory A. LIEVING | West Virginia University | USA | 
| Thomas R. LINSCHEID | The Ohio State University | USA | 
| Karen M. LIONELLO-DENOLF | Purdue University | USA | 
| C. FERGUS LOWE, 1, 2, 3, 4, 5 | University of Wales | Wales | 
| Duane A. LUNDERVOLD, 1, 2 | Central Missouri State University | USA | 
| Françoise MACAR | Centre de Recherche en Neurosciences Cognitives, CNRS | France | 
| Armando MACHADO, 1, 2 | Indiana University | USA | 
| Laurent MADELAIN | Université de Lille III | France | 
| J. H. Roald MAES, 1, 2 | University of Nijmegen | The Netherlands | 
| Sandy MAGEE | University of North Texas | USA | 
| Rosa Helena MALHEIROS | Universidade Presbiteriana Mackenzie | Brazil | 
| M. Jackson MARR | Georgia Tech | USA | 
| W. Lee MARTIN | Universidade Federal do Pará | Brazil | 
| Hector MARTINEZ | University of Guadalajara | Mexico | 
| Mathew T. MARTIN-IVERSON | University of Western Australia | Australia | 
| V. H. R MARUSSI | Universidade Estadual de Campinas | Brazil | 
| Mónika MASCAI | University of Szeged | Hungary | 
| Georgia MASON | University of Oxford | United Kingdom | 
| Lynn E. McCLANNAHAN | Princeton Child Development Institute | USA | 
| Jennifer J. McCOMAS | The University of Minnesota | USA | 
| Attracta McGLINCHEY | University of Ulster at Coleraine | Northern Ireland | 
| William J. McILVANE, 1, 2, 3 | E. K. Shriver Center for Mental Retardation | USA | 
| Raphael MECHOULAM | Hebrew University OF Jerusalem | Israel | 
| Megan MEGINLEY | West Virginia University | USA | 
| Marc MELEN, 1, 2, 3, 4, 5 | Université de Liège | Belgium | 
| Liana Lins MELO | Universidade São Francisco | Brazil | 
| N. MICHNEVICH | Novosibirsk State University | Russia | 
| Yannick MIOSSEC | Université de Lille III | France | 
| Suzanne H. MITCHELL | University of New Hampshire | USA | 
| Sirous MOBINI, 1, 2 | University of Nottingham | United Kingdom | 
| Jean-Louis MONESTES | Université de Lille III | France | 
| Raphael MORENO, 1, 2 | Universidad de Sevilla | Spain | 
| Kim NARSI | Victoria University of Wellington | New Zealand | 
| Sonia M. M. NEVES | Universidade Catolica de Goias | Brazil | 
| Tristan NOKES | University College London | United Kingdom | 
| Hiroto OKOUCHI | Osaka Kyoiku University | Japan | 
| Juliana Di S. OLIVEIRA | Universidade Catolica de Goias | Brazil | 
| Jennifer O'CONNOR B. A. | Glasheen Girls National School | Ireland | 
| K. C. F. de OLIVEIRA | Universidade Catolica de Goias | Brazil | 
| Lucia H. R. OLIVEIRA | Universidade Catolica de Goias | Brazil | 
| I. Anna S. OLSSON | Swedish University of Agricultural Sciences | Sweden | 
| Eugene O'HARE, 1, 2 | University of Ulster | Northern Ireland | 
| Gerardo ORTIZ | University of Guadalajara | Mexico | 
| Mark F. O'REILLY | National University of Ireland | Ireland | 
| Lisa A. OSBORNE | University College London | United Kingdom | 
| Pawel OSTASZEWSKI | Warsaw University | Poland | 
| Debra PAONE | City University of New York (CUNY) | USA | 
| Martha PELAEZ, 1, 2, 3 | Florida International University | USA | 
| Ricardo PELLÓN, 1, 2, 3 | Universidad Nacional de Educación a Distancia | Spain | 
| Vicente PEREZ, 1, 2 | Universidad de Sevilla | Spain | 
| Andres M. PEREZ-ACOSTA | Universidad Catolica de Colombia | Colombia | 
| Luis A. PÉREZ-GONZÁLEZ, 1, 2 | University of Oviedo | Spain | 
| Ángeles PEREZ-PADILLA | Universidad Nacional de Educación a Distancia | Spain | 
| Silvia PERINI | University of Parma | Italy | 
| Michael R. PETRONKO | The State University of New Jersey | USA | 
| Jada N. PIERCE | Purdue University | USA | 
| Marina PINELLI | University of Parma | Italy | 
| Christian PLEBST | Raul Carea Institute for Neurological ResearchFLENI | Argentina | 
| Devon POLASCHEK | Victoria University of Wellington | New Zealand | 
| Manuel PORTAVELLA | Universidad de Sevilla | Spain | 
| Camille-Aimé POSSAMAI | Institut de Médecine Navale du Service de Santé des Armées | France | 
| Melissa POTTER | Protestant Guild Learning Center | USA | 
| Sandrine PREDAZZER | Université de Liège | Belgium | 
| Philippe PREUX | Université du Littoral | France | 
| Hester PRINSEN | University of Nijmegen | The Netherlands | 
| Nelson G. PUBLICOVER | University of Nevada | USA | 
| Asun PUNCHE ECHEGARAY | Ramon Llull University | Spain | 
| Rene QUINONES | University of Nevada | USA | 
| Ton RANDELL | University of Southampton | United Kingdom | 
| Valerie R. L. RANDLE, 1, 2 | University of Wales | Wales | 
| Phil REED, 1, 2, 3, 4, 5, 6, 7 | University College London | United Kingdom | 
| Bob REMINGTON | University of Southampton | United Kingdom | 
| Zh. I. REZNIKOVA | Novosibirsk State University | Russia | 
| Emilio RIBES-INESTA, 1, 2 | University of Guadalajara | Mexico | 
| Ricky Lee RICHARDSON | University of Ulster | Nothern Ireland | 
| Vinca RIVIERE | Université de Lille III | France | 
| Neil ROBERTS | MARIARC | England | 
| Heloisa S. M. ROBLES | Universidade Federal de São Carlos | Brazil | 
| Josep ROCA BALASCH | INEFC- Universitat de Barcelona | Spain | 
| Dolores ROLLO | University of Parma | Italy | 
| A. A. M. ROSA e SILVA | Universidade Estadual de Campinas | Brazil | 
| Stuart ROSEN | University College London | United Kingdom | 
| Cédric ROUTIER | Université de Picardie - Jules Verne | France | 
| Joseph J. RYAN, 1, 2 | Central Missouri State University | USA | 
| Stevie SACKIN | University College London | United Kingdom | 
| M. Elizângela SAMPAIO | Universidade Federal do Pará | Brazil | 
| M. H. SAMPAIO | Universidade Estadual de Campinas | Brazil | 
| Divina P. dos SANTOS | Universidade Catolica de Goias | Brazil | 
| Leila SARAIVA, 1, 2 | Universidade Presbiteriana Mackenzie | Brazil | 
| Nicole C. A. SCHRIJVER | Institut für Nutztierwissenschaften Physiologie und Tierhaltung | Switzerland | 
| Daniel SEYS | Winckelsteegh Residential Facility | The Netherlands | 
| D. SHAW | University of Ulster | Northern Ireland | 
| Robert Adrian SHEPARD, 1, 2 | University of Ulster | Northern Ireland | 
| Jeff SIGAFOOS | University of Sydney | Australia | 
| André V. SILVA | Universidade Catolica de Goias | Brazil | 
| Flávia R. SILVA | Universidade Federal do Pará | Brazil | 
| Maria Teresa Araujo SILVA | Universidade de São Paulo | Brazil | 
| Nuno Martins SILVA | Universidade de Lisboa | Portugal | 
| Maria Zilah da SILVA BRANDAO | Universidade Estadual de Londrina and PsiC | Brazil | 
| Krish D. SINGH | MARIARC | England | 
| Brigid SINNOTT B. A., 1, 2 | Glasheen Girls National School | Ireland | 
| Paul M. SMEETS, 1, 2 | Leiden University | The Netherlands | 
| A. A. SMIRNOVA, 1, 2 | Moscow State University | Russia | 
| Mariane SOH | University College London | United Kingdom | 
| Michel B. C. SOKOLOWSKI, 1, 2, 3, 4 | Université de Picardie - Jules Verne | France | 
| C. M. Z. SOUZA | Universidade Estadual de Campinas | Brazil | 
| Lourenço DE SOUZA BARBA | University of São Paulo | Brazil | 
| Giovanna SPINOZZI | Consiglio Nazionale delle Ricerche (C.N.R.) | Italy | 
| David STALFORD | University of Ulster | Northern Ireland | 
| Marion STAUNTON | University of Ulster | Northern Ireland | 
| Miriam STEINER | University of South Florida | USA | 
| Elêmer SZABADI, 1, 2 | University of Nottingham | United Kingdom | 
| Gyula SZABO | University of Szeged | Hungary | 
| Ricardo TAMAYO | University of Guadalajara | Mexico | 
| Gyula TELEGDY | University of Szeged | Hungary | 
| Pierre THOMAS | Université de Lille III | France | 
| François TONNEAU | University of Guadalajara | Mexico | 
| Fabio TOSOLIN | Università degli Studi di Milano | Italy | 
| Valentina TRUPPA | Consiglio Nazionale delle Ricerche (C.N.R.) | Italy | 
| Roberto TRUZOLI, 1, 2, 3, 4 | Università degli Studi di Milano | Italy | 
| Elias TSAKANIKOS | University College London | United Kingdom | 
| Peter URCUIOLI | Purdue University | USA | 
| V. S. VALENTINUZZI | Universidade Estadual de Campinas | Brazil | 
| Luc M. A. VANDENBERGHE | Universidade Catolica de Goias | Brazil | 
| Janna D. VAN DELDEN-VAN DER WOLF, 1, 2, 3 | Constructional Behavior Analysis Foundation | The Netherlands | 
| Franck VIDAL | Institut de Médecine Navale du Service de Santé des Armées | France | 
| Maria Cristiane S. VILLANE | Universidade Catolica de Goias | Brazil | 
| Jo M. H. VOSSEN, 1, 2 | University of Nijmegen | The Netherlands | 
| David P. WACKER, 1, 2, 3, 4 | The University of Iowa | USA | 
| Julie WACHSMAN | Univerité de Liège | Belgium | 
| Gladys WILLIAMS, 1, 2 | Applied Behavioral Consultant Services, New York | USA | 
| Craig VINCI | University of Nevada | USA | 
| Janette WOOLNER | University Of Wales | Wales | 
| Jim E. WRIGHT | University of Leeds | United Kingdom | 
| Hanno WÜRBEL | Institut für Nutztierwissenschaften Physiologie und Tierhaltung | Switzerland | 
| Clive D.L. WYNNE | University of Western Australia | Australia | 
| Jin Ho YOON | University of Florida | USA | 
| Tie Yuan ZHANG | Yonsei University College of Medicine | Korea | 
| Thomas R. ZENTALL | University of Kentucky | USA | 
| Z. A. ZORINA, 1, 2 | Moscow State University | Russia | 
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