Sadahiko Nakajima

J-GLOBAL         Last updated: Oct 10, 2019 at 22:58
Sadahiko Nakajima
Kwansei Gakuin University
Department of Psychological Science, School of Humanities
Job title
Ph.D.(Psychology)(Keio University)


Born in 1965 in Kochi City, Japan.
My major interest lies in psychological processes of learning and memory. With typical laboratory animals such as rats, I am doing experimental research on how and what they learn and on the mechanism of behavioral expression.
Another area of my research is "human-animal relations." In the mass media, I am known as a scholar studying facial resemblance between dogs and their owners (visit the URL shown above).

Research Areas


Academic & Professional Experience

Apr 2009
Professor (Kyoju), Kwansei Gakuin University
Apr 2007
Mar 2009
Associate Professor (Jun Kyoju), Kwansei Gakuin University
Apr 2001
Mar 2007
Associate Professor (Jo Kyoju), Kwansei Gakuin University
Apr 1997
Mar 2001
Assistant Professor (Sen-nin Koshi), Kwansei Gakuin University
Apr 1995
Mar 1997
Visiting Scholar, Universioty of Pennsylvania, JSPS
Apr 1993
Mar 1995
Postdoctral Fellow, Kwansei Gakuin University, JSPS


Apr 1990
Mar 1993
Psychology, Doctoral Program, Graduate School, Keio University
Apr 1988
Mar 1990
Psychology, Master's Program, Graduate School, Keio University
Apr 1984
Mar 1988
Psychology, Sophia University

Published Papers

Nakajima, S.
Further demonstration of running-based food avoidance learning in laboratory mice (Mus musculus)   168 103962   Sep 2019   [Refereed]
Yamagishi, A., Nakajima, S., Hirono, S., Mishima, M., Kimoto, T., Kida, H., Shikase, D., Matsufuji, M., Sakai, T., Ka, S., Hashimoto, Y., Mizue, H., Okubo, A., Kitano, K., & Sato, N.
Kwansei Gakuin University Bulletin of Psychological Science Research   45 9-18   Mar 2019
Nakajima, S.
Behavioural Processes   159 31-39   Feb 2019   [Refereed]
Onza, N., & Nakajima, S.
Japanese Journal of Psychonomic Science   36 243-252   Aug 2018
Nakajima, S.
Learning and Motivation   63 91-97   Aug 2018   [Refereed]
Nakajima, S., Ogai, T., & Sasaki, A.
Learning and Motivation   63 11-19   Aug 2018   [Refereed]
Nakajima, S.
Learning & Behavior   46 182-197   Jun 2018   [Refereed]
Nakajima, S.
Physiology & Behavior   188 199-204   May 2018   [Refereed]
Nakajima, S., Ando, T., & Tokuriki, Y.
Kwansei Gakuin University Bulletin of Psychological Science Research   44 9-15   Mar 2018
Nakajima, S.
International Journal of Comparative Psychology   31    2018   [Refereed]
Nakajima, S., & Onza, N.
Japanese Journal of Psychonomic Science   35 163-177   Mar 2017   [Refereed]
Nakajima, S., Kurokawa, M., & Masutani, S.
Kwansei Gakuin University Humanities Review   21 1-8   Dec 2016
Nakajima, S.
Appetite   105 85-94   Oct 2016   [Refereed]
Nakajima, S.
Behavioural Processes   130 1-3   Sep 2016   [Refereed]
Hori, M., Numata, K., Nakajima, S., & Shimazaki, T.
Japanese Journal of Psychonomic Science   34 246-252   Mar 2016   [Refereed]
Nakajima, S., Kuramoto, Y., & Nagaishi, T.
Kwansei Gakuin University Humanities Review   20 1-14   Dec 2015
Nakajima, S.
Kwansei Gakuin Humanities Review   65(2) 31-47   Sep 2015
Tamai, N., & Nakajima, S.
Mexican Journal of Behavior Analysis   41 155-165   Sep 2015   [Refereed]
Nakajima, S., Onza, N., & Nakagawa, H.
Learning and Motivation   51 62-75   Aug 2015   [Refereed]
Nakajima, S.
Learning and Motivation   51 1-10   Aug 2015   [Refereed]
Nakajima, S., Kihara, C., & Kaneshita, M.
Kwansei Gakuin University Bulletin of Psychological Science Research   41 7-15   Mar 2015
Shishimi, G., Ishimaru, M., & Nakajima, S.
Kwansei Gakuin University Bulletin of Psychological Research   41 1-6   Mar 2015
Nakajima, S., & Izumida, M.
Current Psychology   34 50-57   Mar 2015   [Refereed]
Field and questionnaire surveys on cat cafe customers [In Japanese with Engish abstract]
Ichihara, Y., & Nakajima, S.
Japanese Journal of Human Animal Relations   40 46-55   Mar 2015   [Refereed]
Nakajima, S.
International Journal of Comparative Psychology   28 1-10   Feb 2015   [Refereed]
Chin, H., Kanda, K., Uwano, Y., Tomonaga, M., & Nakajima, S.
Animal Behaviour and Management   51 87-94   2015   [Refereed]
Nakajima, S., & Katayama, T.
Appetite   83 178-184   Dec 2014   [Refereed]
The current state of dog training schools in Japan: Analysis of 875 school websites and their courses [In Japanese with English abstract]
Yamanoue, Y., & Nakajima, S.
Japanese Journal of Human-Animal Rlations   38 50-58   Aug 2014   [Refereed]
Nakajima, S.
Learning and Motivation   46 27-43   May 2014   [Refereed]
Nakajima, S., Suzuki, C., & Hirata, K.
The Psychological Record   64 63-69   Mar 2014   [Refereed]
Nakajima, S.
Physiology & Behavior   123 200-213   Jan 2014   [Refereed]
Nakajima, S.
Japanese Journal of Psychonomic Science   33 36-47   Sep 2014   [Refereed][Invited]
Nakajima, S.
Anthrozoos   26(4) 551-556   Dec 2013   [Refereed]
Hashimoto, A., & Nakajima, S.
The Psychological Record   63 785-802   Oct 2013   [Refereed]
Nakajima, S.
Kwansei Gakuin Univetsity Humanities Review   63(2) 55-74   Sep 2013
Nakajima, S., Uefuji, M., & Takamatsu, K.
Japanese Journal of Human Animal Relations   35 47-53   Jul 2013   [Refereed]
Nakajima, S.
Annual Report of Center for Psychological Science, Senshu University   2 209-223   Mar 2013   [Invited]
Nakajima, S.
Kwansei Gakuin University Humanities Review   62(1) 109-138   May 2012
Nakajima, S., Kumazawa, G., Ieki, H., & Hashimoto, A.
Psychological Record   62 83-90   Jan 2012   [Refereed]
Nakajima, S., & Kakimi, M.
Japanese Journal of Human Animal Relations   30 59-69   Dec 2011   [Refereed]
Nakajima, S.
Appetite   57(3) 605-614   Aug 2011   [Refereed]
Nakajima, S., Takamatsu, Y., Fukuoka, T., & Omori, Y.
Journal of Veterinary Behavior: Clinical Applications and Research   6 95   2011
Nakajima, S.
Japanese Journal of Behavior Analysis   26(1) 13-27   2011   [Refereed]
Nakajima, S.
Kwansei Gakuin University Humanities Review   60(2) 39-53   Sep 2010
Nagaishi, T., & Nakajima, S.
Behavioural Processes   83(1) 134-136   Jan 2010   [Refereed]
Masaki, T., & Nakajima, S.
Learning and Motivation   41(1) 32-47   2010   [Refereed]
Nakajima, S., Tajiri, H., & Ohira, M.
Behavioral Science Research   48(1) 1-9   Dec 2009   [Refereed]
Nakajima, S.
Behavioural Processes   80 80-89   Jan 2009   [Refereed]
Fear conditioning as an experimental model of anxiety disorder [In Japanese]
Nakajima, S.
Japanese Journal of Anxiety Disorder   1 195-199   2009   [Invited]
Nakajima, S., Yamamoto, M., & Yoshimoto, N.
Anthrozoos   22 173-181   2009   [Refereed]
Nakajima, S., Fukuoka, T., Takamatsu, Y., Chin, H.
Japanese Journal of Animal Psychology   57 77-84   2009   [Refereed]
According to the experimental studies conducted by European and American researchers, domestic dogs are good performers in choosing a container based on gestures provided by humans. Some researchers have argued that this ability is a product of do...
Hirayoshi, S., & Nakajima, S.
Japanese Journal of Animal Psychology   59 57-75   2009   [Refereed]
Two lists of human personality-trait descriptors (386 descriptors in List A and 382 descriptors in List B) were judged by university students (n=230 for List A, and n=138 for List B). The data were summarized in terms of the “acceptance score” of ...
Nagaishi, T., Hirayoshi, S., Urata, T., & Nakajima, S.
Japanese Journal of Animal Psychology   57 85-88   2009   [Refereed]
Masaki, T., & Nakajima, S.
Behavioural Processes   79 43-47   Sep 2008   [Refereed]
Nakajima, S.
Behavioural Processes   78 470-472   Jul 2008   [Refereed]
Nakajima, S.
Japanese Journal of Animal Psychology   58 87   2008   [Refereed]
Nagaishi, T., & Nakajima, S.
Learning and Motivation   39 221-242   2008   [Refereed]
Masaki, T., Tatsumi, K., & Nakajima, S.
Japanese Journal of Animal Psychology   57(2) 81-88   Dec 2007   [Refereed]
The present study investigated how rats and humans classify five kinds of "tea" after tasting them. In Experiment 1, rats consumed one of five commercial brands of tea (two brands of green tea, two brands of herb blend tea, and one brand of barley...
Nakajima, S.
Biological Science   58(3) 166-176   May 2007   [Refereed][Invited]
Shishimi, G., & Nakajima, S.
Behavioural Processes   74 97-103   Jan 2007   [Refereed]
Nakajima, S.
Brain Medical   19 33-38   2007   [Invited]
Effects of a dog upon impression of a photographed person [In Japanese with English abstract]
Nakajima, S., Nakamoto, A., Miyake, Y., & Motokawa, H.
Japanese Journal of Human Animal Relations   19 54-66   2007   [Refereed]
Analysis of owners' attitudes towards their dogs by the PM theory of leadership [In Japanese with English abstract]
Urata, T., & Nakajima, S.
Japanese Journal of Human Animal Relations   19 67-74   2007   [Refereed]
Nakajima, S.
Behavioral Science Research   45(2) 27-36   Dec 2006   [Refereed]
Nakajima, S.
Behavioral Science Research   45(1) 51-64   Dec 2006   [Refereed]
Nakajima, S., Takahashi, K., & Blaisdell, A. P.
Behavioural Processes   73 84-91   Jul 2006   [Refereed]
Masaki, T., & Nakajima, S.
Physiology & Behavior   88 411-416   Jul 2006   [Refereed]
Nakajima, S., Urata. T., & Ogawa, Y.
Physiology & Behavior   88 1-11   Jun 2006   [Refereed]
Nakajima, S.
Japanese Journal of Animal Psychology   55(1) 33-40   Jun 2005   [Refereed][Invited]
Nakajima S
Psychological Reports   96 1011-1014   Jun 2005   [Refereed]
Masaki, T., & Nakajima, S.
Physiology & Behavior   84 9-15   2005   [Refereed]
Nakajima, S., & Onimaru, S.
Journal of Ethology   24(1) 59-65   2005   [Refereed]
Nakajima, S., & Nagaishi, T.
Behavioural Processes   69 369-377   2005   [Refereed]
Nakajima, S.
JKwansei Gakuin University Humanities Review   54(3) 57-71   Dec 2004
Hirayoshi, S. & Nakajima, S.
Japanese Journal of Behavior Analysis   18(2) 99-107   Jun 2004   [Refereed]
Study objective: The present study was conducted to reconfirm the finding that differential-reinforcement-of-response-duration (DRRD) schedules can be used to train rats to continue pressing a lever for required durations, and to observe pressing ...
Sawa, K., Nakajima, S., & Imada, H.
Japanese Journal of Psychonomic Science.   22(2) 165-167   Mar 2004   [Refereed]
This study investigated the effect of sodium hunger on sodium aversion learning in rats. The animals were exposed to either to a 0.1 M, 0.2M, or 0.3M sodium chloride solution prior to poisoning in a sodium-deprived or non-deprived state. Taste ave...
Nakajima, S.
Japanese Psychological Research   46(3) 141-153   2004   [Refereed][Invited]
Masaki, T., & Nakajima, S.
Learning and Motivation   35 406-418   2004   [Refereed]
Nakajima, S., & Masaki, T.
Physiology & Behavior   80 623-628   2004   [Refereed]
Doe, N., Nakajima, S., & Tamai, N.
Learning and Motivation   35 242-261   2004   [Refereed]
Masaki, T., & Nakajima, S.
Behavioural Processes   67 357-362   2004   [Refereed]
Nakajima, S., & Urushihara, K.
Japanese Journal of Psychonomic Science.   22(1) 18-23   Sep 2003   [Refereed]
Renewal of operant performance formerly eliminated by omission training was explored with rats under two context-change conditions (ABA and AAB). When pressing a lever was trained with food reinforcement in one context and then eliminated by omiss...
Shimamune, S., Nakajima, S., Inoue, M., Endo, S., Isawa, S., Okuda, K., Kitagawa, K., Sato, T., Shimizu, H., Shimoda, H, Takahata, S., Tajima, H., Tsuchiya, R., Noro, F., Haramaki, S, Muto, T., Yamagishi, N., & Yoneyama, N.
Japanese Journal of Behavior Analysis   17(2) 174-208   Sep 2003   [Refereed]
The Behavior Analyst Certification Board (BACB) is a not-for-profit organization that certifies professional behavior analysts with formal support from the Association for Behavior Analysis International (ABA). In this document, we describe BACB's...
Nakajima, S.
Skeptical Inquirer   27 12-13   2003   [Refereed]
Nakajima, S.
Equine Science   39 51-55   2002   [Refereed]
Sawa, K., & Nakajima, S.
Behavioural Processes   57 1-6   2002   [Refereed]
Nakajima, S., Arimitsu, K., & Lattal, K. M.
Anthrozoos   15 194-205   2002   [Refereed]
Nakajima, S., Urushihara, K., & Masaki, T.
Learning and Motivation   33 510-525   2002   [Refereed]
Hayashi, H., Nakajima, S., Urushihara, K., & Imada, H.
Learning and Motivation   33 390-409   2002   [Refereed]
Nakajima, S.
Kwansei Gakuin University Humanities Review   51(2) 1-22   Sep 2001
Nakajima, S.
Journal of the Physics Education Society of Japan   49(4) 392-394   Sep 2001   [Invited]
Nakajima, S.
Japanese Journal of Psychonomic Science.   19(2) 101-107   Mar 2001   [Refereed][Invited]
Preexposure to stimuli facilitates performance of subsequent discrimination training with these stimuli, when the discrimination task is relatively difficult for animals. This perceptual learning effect indicates that the animals incidentally lear...
Tamai, N., Nakajima, S., & Imada, H.
Japanese Journal of Psychology   71 493-497   2001   [Refereed]
Nakajima, S.
Japanese Journal of Human Animal Relations   9-10 100-107   2001   [Invited]
Nakajima, S.
Animal Cognition   4 221-226   2001   [Refereed]


Do owners really look like their dogs?
Nakajima, S.
GOETHE   13(2) 75   Feb 2018   [Invited]
Nakajima, S.
Psychology World   (78) 5-8   Jul 2017   [Invited]
GONDO Maori, OKOUCHI Hiroto, NAKAJIMA Sadahiko, MUTOH Takashi
日本行動分析学会年次大会プログラム・発表論文集   (28)    Sep 2010
MORIYAMA Tetsumi, NAKAJIMA Sadahiko, NAKANO Yoshiaki, MOCHIZUKI Akira, SAKAGAMI Takayuki, MUTO Takashi, WATANABE Nobuhiro
日本行動分析学会年次大会プログラム・発表論文集   (28)    Sep 2010
Psychology of rats and its relationship to our life [In Japanese]
Nakajima, S.
Japanese Journal of Human Animal Relations   26 6-7   2010
Nakajima Sadahiko, Sugiyama Naoko, Sugisaki Kazuhiko, Yamamoto Nakako, Manabe Kazuchika
日本行動分析学会年次大会プログラム・発表論文集   (27)    Jun 2009
Japanese Journal of Animal Psychology      2009
Nakajima Sadahiko, Moriyama Tetsumi, Sakurai Fujiro, Kamakura Yayoi
日本行動分析学会年次大会プログラム・発表論文集   (25)    Jul 2007
Nakajima, S.
Japanese Journal of Behavior Analysis   19(1) 2-4   2004
日本行動分析学会年次大会プログラム・発表論文集   (21)    Jun 2003
URATA Tomoko, SHIOTA Tomoya, NAKAJIMA Sadahiko
日本行動分析学会年次大会プログラム・発表論文集   (21)    Jun 2003
MANABE Kazuchika, KAWASHIMA Takashi, OYAMA Tadasu, ASANO Toshio, YAMAMOTO Junichi, NAKAJIMA Sadahiko, INOUE Masahiko
日本行動分析学会年次大会プログラム・発表論文集   (21)    Jun 2003
1980年から2000年までのJournal of the Experimental Analysis of Behavior誌(JEAB)掲載の研究論文(レビュー論文も含む)における平均被引用件数(図1の実線)を調べてみると、以下の式でほぼ予測可能であることが分かります。
Japanese Journal of Behavior Analysis   12(1) 53-55   Jul 1998
The Japanese Journal of Animal Psychology   46(1) 29-30   Jul 1996

Books etc

Animal psychology: Projection and rediscovery of our mind
Nakajima, S.
Showado   Oct 2019   ISBN:978-4812219027
Modern society and domestic animals (2nd ed.) M.Ohta (ed.)
Sadahiko Nakajima (Part:Contributor, Innate behavior and acquired behavior; Development and socialization; Communication behavior)
HAPP   Jun 2019   ISBN:978-4991094705
Seishin Dictionary of Psychology (eds. by Shimoyama, H. et al.)
Nakajima, S. (Part:Joint Editor, Field of "Learning")
Seishin Shobo   Sep 2014   ISBN:9784414305074
English-Japanese lexicon in psychology
Psychological Lexicon Editorial Task Force (ed.) (Part:Joint Editor, A member of the editorial task force)
Baifukan   Apr 2014   ISBN:9784563052331
Heibonsha's new dictionary of psychology (Chief ed.: T. Fujinaga)[In Japanese]
Nakajima, S. (Part:Contributor, Habituation-sensitization, Respondent conditioning (Part II), Associative learning theories, Instinct)
Heibonsha   Dec 2013   ISBN:458210603X

Research Grants & Projects

JPSP: KAKENHI (Grants-in-Aid for Scientific Research (C))
Project Year: Apr 2018 - Mar 2021    Investigator(s): Sadahiko Nakajima
JSPS: KAKENHI (Grants-in-Aid for Scientific Research (C))
Project Year: Apr 2015 - Mar 2018    Investigator(s): Sadahiko Nakajima
JSPS: KAKENHI (Grants-in-Aid for Scientific Research (C))
Project Year: Apr 2012 - Mar 2015    Investigator(s): Sadahiko Nakajima
Japan Pet Care Association: Research Grant for Proper Keeping of House Animals
Project Year: Jan 2011 - Dec 2011    Investigator(s): Sadahiko Nakajima
JSPS: KAKENHI (Grants-in-Aid for Scientific Research (C))
Project Year: Apr 2009 - Mar 2012    Investigator(s): Sadahiko Nakajima
An experimental psychological study on extinction in associative learning
Kwansei Gakuin University: Special Grants
Project Year: Apr 2008 - Mar 2009    Investigator(s): Sadahiko Nakajima
A behavioral psychological study on basic mechanisms of conditioning
Kwansei Gakuin: Research Abroad Fellowship
Project Year: Apr 2007 - Mar 2008    Investigator(s): Sadahiko Nakajima
A study on taste aversion learning based on physical activity
Kwansei Gakuin University: Special Grant
Project Year: Apr 2004 - Mar 2005    Investigator(s): Sadahiko Nakajima
MEXT: KAKENHI (Grant-in-Aid for Young Scientists (B))
Project Year: Apr 2002 - Mar 2004    Investigator(s): Sadahiko Nakajima
MEXT: KAKENHI (Grant-in-Aid for Young Scientists (A))
Project Year: Apr 2000 - Mar 2002    Investigator(s): Sadahiko Nakajima
MEXT: KAKENHI (Grant-in-Aid for Young Scientists (A))
Project Year: Apr 1998 - Mar 2000    Investigator(s): Sadahiko Nakajima
A study on hierarchical relationships among stimuli and responses in conditioning
JSPS: Postdoctral Fellowships for Research Abroad
Project Year: Apr 1995 - Mar 1997    Investigator(s): Sadahiko Nakajima
"Response-reinforcer" specificity in operant conditioning
Ministry of Education, Science and Culture: KAKENHI (JSPS Research Fellowships for Young Scientists)
Project Year: Apr 1993 - Mar 1995    Investigator(s): Sadahiko Nakajima
Development of the Paranormal Belief Scale for Japanese
Japan Skeptics: Research Grant
Project Year: Feb 1992 - Mar 1993    Investigator(s): Sadahiko Nakajima