| LAST NAME | FIRST | MIDDLE | PRIMARY FIELD | AFFILIATION | COUNTRY | YEAR ADDED | |
| Iacoboni | Marco | Cognitive Neuroscience | University of California, Los Angeles | U.S.A. | |||
| Iberico | Carlos | Experimental Psychology | Peru | 2006 | |||
| Idrobo | Fabio | Psychology | Boston University | U.S.A. | pre 1991 | ||
| Idsardi | W. | J. | Linguistics | University of Delaware | U.S.A. | 1997 | |
| Ikegami | Takashi | University of Tokyo | Japan | 2005 | |||
| Ilardi | F. | Mandeville, LA | U.S.A. | pre 1991 | |||
| Iles | J. | F. | Physiology | Oxford University | U.K. | pre 1991 | |
| Illert | Michael | Physiology | Christian-Albrechts-Universitat | Germany | pre 1991 | ||
| Imada | Hiroshi | Psychology | Kwansei Gakuin University | Japan | pre 1991 | ||
| Imada | Sumio | Psychology | Hiroshima Shudo University | Japan | pre 1991 | ||
| Immelmann | Klaus | Ethology | University of Bielefeld | Germany | pre 1991 | ||
| Inbar | Gideon | R. | Electrical Engineering | Israel Institute of Technology | Israel | pre 1991 | |
| Indefrey | P. | Neurolinguistics | Max-Planck-Institute, Nijmegen | The Netherlands | 1999 | ||
| Inder | Robert | Cognitive Science | University of Edinburgh | Scotland | 1993 | ||
| Indow | Tarow | Social Science | University of California | U.S.A. | pre 1991 | ||
| Indurkhya | Bipin | International Institute of Information Technology | 2003 | ||||
| Ingber | Lester | Neuropsychology | Lester Ingber Research | U.S.A. | 1994 | ||
| Ingham | R. | Speech Behavior | University of California (Santa Barbara) | U.S.A. | 1997 | ||
| Inglis | James | Psychology | Queen's University | Canada | pre 1991 | ||
| Ingold | Tim | Anthropology | University of Manchester | U.K. | 1993 | ||
| Ingraham | Loring | Clinical Psychology | N.I.H. | U.S.A. | 1991 | ||
| Ingvaldsen | R. | P. | Motor Learning | University of Trondheim | Norway | 1994 | |
| Ingvar | D. | H. | Neurophysiology | University of Lund Hospital | Sweden | pre 1991 | |
| Ingvar | M. | Clinical Neuroscience | Karolinska Hospital, Stockholm | Sweden | 1998 | ||
| Inhoff | Albercht | W. | Neurology | Binghamtom University | U.S.A. | pre 1991 | |
| Innocenti | G. | M. | Institute of Anatomy, LaU.S.A.nne | Switzerland | pre 1991 | ||
| Insel | T. | R. | Neuroscience | LCS/NIHPO | 1992 | ||
| Intons-Peterson | Margaret | Jean | Psychology | Indiana University | U.S.A. | 2002 | |
| Intraub | Helene | Cognitive Science | University of Delaware | U.S.A. | 2000 | ||
| Ippolito | Maria | Psychology | Bowling Green State University | U.S.A. | 1994 | ||
| Iranott | Jason | Cognition | Dalhousie University | Canada | |||
| Irons | William | Anthropology | Northwestern University | U.S.A. | pre 1991 | ||
| Irsigler | F. | J. | Krugersdorp, TVL | South Africa | pre 1991 | ||
| Irvine | S. | H. | Psychology | University of Plymouth | U.K. | pre 1991 | |
| Irwin | David | Psychology | University of Illinois | U.S.A. | 1994 | ||
| Irwin | Francis | W. | Psychology | University of Pennsylvania | U.S.A. | pre 1991 | |
| Irwin | Robert | John | Psychology and Psychophysics | The University of Auckland | New Zealand | 2002 | |
| Isaac | Walter | Psychology | University of Georgia | U.S.A. | pre 1991 | ||
| Isableu | Brice | Perception | University of Paris South-11 | France | 2004 | ||
| Isard | S. | Psychology | Sussex University | U.K. | pre 1991 | ||
| Isel | F. | Neuropsychology | Max Planck Institute of Cognitive Neuroscience, Leipzig | Germany | 1999 | ||
| Isler | Hansruedi | University Hospital, Zurich | Switzerland | pre 1991 | |||
| Isom | J. | Psychology | University of Texas (Austin) | U.S.A. | 1999 | ||
| Israel | D. | Artificial Intelligence | SRI International | U.S.A. | 1996 | ||
| Issacson | Robert L. | Psychology | State University of New York | U.S.A. | pre 1991 | ||
| Ito | Hironobu | Anatomy | Osaka University Medical School | Japan | pre 1991 | ||
| Ito | Masao | Physiology | University of Tokyo | Japan | pre 1991 | ||
| Itoh | Kosuke | Neuroscience | Kyushu University | Japan | 2005 | ||
| Ivancich | J. | E. | Cognitive Science | University of Michigan | U.S.A. | 1998 | |
| Ivanitsky | A. | M. | Higher Nervous Action | Russian Academy of Sciences, Moskow | Russia | 1995 | |
| Ivanov | V. | V. | Typology | Russian Academy of Sciences, Moscow | Russia | pre 1991 | |
| Iversen | Iver | H. | Psychology | University of North Florida | U.S.A. | pre 1991 | |
| Iversen | S. | D. | Neuroscience | Merck Sharp & Dohme | U.K. | pre 1991 | |
| Iverson | Geoffrey | J. | Psychology | Northwestern University | U.S.A. | pre 1991 | |
| Iverson | Jana | M. | Psychology | University of Pittsburgh | U.S.A. | 2003 | |
| Ivry | Richard | Psychology | University of California (Santa Barbara) | U.S.A. | pre 1991 | ||
| Iwama | I. | Neurophysiology | Osaka University Medical School | Japan | pre 1991 | ||
| Izard | Carroll | E. | Psychology | University of Delaware | U.S.A. | pre 1991 | |
| Izumi | Akihiro | Cognition | Kyoto University | Japan | 2005 | ||
| Izvorski | R. | Linguistics | Georgetown University | U.S.A. | 1999 |