Sociality & Social Networks Lab
HIRASHIMA, Taro(平島 太郎)
Associate professor at the Department of Psychology, Aichi Shukutoku University
Research Interests
How do humans adapt themselves to complex and uncertain social environments? I am interested in the psychological foundations of social networks (social/non-social cognitive and motivational foundation of human social networks) and their consequences at an individual level (e.g., health) and societal level (e.g., diversity).
Keywords
social networks, personal networks, social network size
minimal social interaction, power of strong-/weak-ties
sociality, social cognition, mentalizing
attitude ambivalence, uncertainty, approach-avoidance, etc...
Contact
Address: Katahira 2-9, Nagakute city, Aichi, 480-1146, JAPAN
TEL: +81 561-62-4111
Employment
2019-present Associate Professor, Department of Psychology, Aichi Shukutoku University, 2019-present
2017-2019 Lecturer, Department of Psychology, Aichi Shukutoku University,
2015-2017 Research Assistant, Graduate School of Education and Human Development, Nagoya University
Education
Nagoya University, 2012-2015
Ph.D course in Psychology, Graduate School of Education and Human Development, Nagoya University.
SV: Associate professor Tasuku IGARASHI
Nagoya University, 2010-2012
M.A. in Psychology, Graduate School of Education and Human Development, Nagoya University.
"The effects of attitudinal ambivalence on information processing" (in Japanese)
SV: Professor Toshikazu YOSHIDA
Nagoya University, 2006-2010
B.A. in Pedagogy, Nagoya University.
"The effects of active/passive optimism on psychological adjustment" (in Japanese)
SV: Professor Toshikazu YOSHIDA
Works
Articles
Hirashima, T., & Igarashi, T. (2022). Is mentalizing essential to predict human network size? Reexamining the Social Brain Hypothesis from a social network perspective. Letters on Evolutionary Behavioral Science, 13(2), 50–56. https://doi.org/10.5178/lebs.2022.99 (peer-reviewed)
Igarashi, T., & Hirashima, T. (2021). Generalized trust and social selection process. Frontiers in Communication, 6, 88. https://doi.org/10.3389/fcomm.2021.667082 (peer-reviewed)
Abe, S., Oshio, A., Kawamoto, T., Ito, H., Hirashima, T., Tsubota, Y., & Tani, I. (2019). Smokers are extraverted in Japan: Smoking habit and the Big Five personality traits. SAGE Open, July-September 2019: 1–6. doi:10.1177/2158244019859956 (peer-reviewed)
Hirashima, T. (2017). Does the ability to read emotion from faces expand social networks? A preliminary analysis on the relationships between social network size and social intelligence among Japanese undergraduates. The Tokai Journal of Psychology, 11, 29-39. (peer-reviewed)(in Japanese)
Kawamoto, T., Oshio, A., Abe, S., Tsubota, Y., Hirashima, T., Ito, H., & Tani, I. (in press). Age and gender differences of Big Five personality traits in a cross-sectional Japanese sample. The Japanese Journal of Developmental Psychology. (peer-reviewed)(in Japanese)
Hirashima, T., & Igarashi, T. (2014). Social network composition and attitudinal ambivalence: Focused on structural ambivalence. Bulletin of the Graduate School of Education and Human Development, Nagoya University (Psychology and Human Developmental Sciences), 61, 105-114. (in Japanese)
Hirashima, T., Tsuchiya, K., Motoyoshi, T., & Yoshida, T. (2014). The effects of attitudinal ambivalence on formation of behavioral intentions. The Japanese Journal of Experimental Social Psychology, 54, 1-10. doi: http://dx.doi.org/10.2130/jjesp.1215 [PDF]. (peer-reviewed)(in Japanese)
Hirashima, T., Tsuchiya, K., Motoyoshi, T., Yoshida, T., & Igarashi, T. (2013). The effects of attitudinal ambivalence on information seeking. The Bulletin of the Graduate School of Education and Human Development, Nagoya University (Psychology and Human Development Sciences), 60, 27-37. (in Japanese)
Hirashima, T., Ito, H., Iwanaga, R., Hagiwara, T., Tani, I., Yukihiro, R., Onishi, M., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hara, K., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., & Tsujii, M. (2014) Construct validity of the Japanese Version of the Adolescent/Adult Sensory Profile in the assessment of individuals with autism spectrum disorder. The Japanese Journal of Psychiatry, 56, 123-132.(peer-reviewed)(in Japanese)
Tani, I., Ito, H., Yukihiro, R., Hirashima, T., Yasunaga, K., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hagiwara, T., Iwanaga, R., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., & Tsujii, M. (2013). Development of the Japanese Version of the Vineland Adaptive Behavior Scales, Second Edition: Accuracy Evaluation of the Adaptive Behavior Scales. The Japanese Journal of Psychiatry, 56, 123-132.(peer-reviewed)(in Japanese)
Hirashima, T., Ito, H., Iwanaga, R., Hagiwara, T., Tani, I., Yukihiro, R., Matsumoto, K., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hara, K., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., & Tsujii, M. (2013). Standardization of the Japanese version of the Infant/Toddler Sensory Profile: Reliability and cut-off scores based on a community sample. The Japanese Journal of Psychiatry, 56, 123-132.(peer-reviewed)(in Japanese)
Yukihiro, R., Ito, H., Tani, I., Hirashima, T., Yasunaga, K., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hagiwara, T., Hara, K., Iwanaga, R., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., Tanaka, K., & Tsujii, M. (2013). Developing Japanese version of the Vinelande Adaptive Behavior Scale II: Measurement accuracy of Adaptive Scale. The Japanese Journal of Psychiatry, 55, 627-635. (peer-reviewed)(in Japanese)
Ito, H., Hirashima, T., Hagiwara, T., Iwanaga, R., Tani, I., Yukihiro, R., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hara, K., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., & Tsujii, M. (2013). (peer-reviewed)(in Japanese)
Umeda, A., Ito, H., Iwanaga, R., Hagiwara, T., Hirashima, T., Tani, I., Yukihiro, R., Onishi, M., Uchiyama, T., Ogasahara, K., Kuroda, M., Inada, N., Hara, K., Inoue, M., Murakami, T., Someki, F., Nakamura, K., Sugiyama, T., Uchida, H., Ichikawa, H., & Tsujii, M. (in press). Standardization of the Japanese Version of the Adolescent/Adult Sensory Profile: Reliability and cut-off scores. The Japanese Journal of Clinical Psychiatry, 42, 789-796. (peer-reviewed)(in Japanese)
Yoshitake, K., Hirashima, T., Kubota, Y., Matsumoto, M., & Morita, M. (2013). Teaching high school students clinical psychology and psychological means of coping with disasters, Bulletin of the Center for Higher Education Research, 13, 3-14. (in Japanese)
Motoyoshi, T., Hirashima, T., & Yoshida, Y. (2013). The experts' mental models of clinical trials: Comparing the models of doctor and clinical research coordinator, (peer-reviewed)(in Japanese)
Books
Hirashima, T. (2013). Schema, Working memory, Top-down/Bottom-up processing, Metacognition. In Hayamizu T. (Ed). Psychology of Education and Learning. Nagoya University Press:Nagoya. (in Japanese)
Presentations (in English)
Igarashi, T., & Hirashima, T. (2016, Nov. 17). Does emotional intelligence work beyond dyads? From a multiple community perspective. The 1st Anual Australian Social Network Analysis Conference. Melbourne, Victoria, Australia. (Swinburne University of Technology)
Hirashima, T., & Igarashi, T. (2016, Aug. 1). Cross-cultural investigation of Social Networking Motivation Scale. in "Social Networks in diverse Sociocultural contexts: Parenting, psychological adjustments, and networking motivations" (Chair: Igarashi, T.; speakers: Hirashima, T. & Igarashi, T.; Sadewo, G. & Kashima, E.; Nishimura, T., Furutani, K., Soma, T., & Naganuma., T.), The 23rd International Association for Cross-Cultural Psychology. Nagoya, Aichi, Japan. (Winc Aichi)
Hirashima, T., Ito, H., Tani, I., Tsubota, Y., Oshio, A. Abe, S. Kawamoto, T., Terracciano, A., & Sutin, A. (2016, July 26). Big-Five personality traits and body mass index (BMI) in Japan: A cross-sectional and longitudinal study. The 31st International Congress of Psychology. Yokohama, Kanagawa, Japan.
Hirashima, T. (2016, July 25). Structural Equation Modeling in social psychology: Current usage and potential application. In thematic session "Promises and pitfalls of the structural equation modeling technique in psychological research (organizer: Ito, H.; speakers: Hirashima, T., Tani, I., Ito, H., and Yukihiro, R.; discussant: Murakami, T.). The 31st International Congress of Psychology. Yokohama, Kanagawa, Japan.
Hirashima, T., & Igarashi, T. (2015, Feb. 27). Social networking motivations and ego-centric network structures. The 16th Annual Meeting of the Society for Personality and Social Psychology. Long Beach, CA, USA.
Oshio, A., Hirashima, T., Ito, H., Kawamoto, T., Tani, I., & Abe, S. (2014, July 18). Cross-sectional age differences in personality traits from 23 to 79 in Japan. The 17th European Conference on Personality. Lausanne, Switzerland.
Hirashima, T., Igarashi, T., & Asano, R. (2014, May 25). The Social Networking Motivations Scale: Examining factorial and criterion validity. The 26th Annual Meeting of the Association for Psychological Science. San Francisco, CA, USA.
Hirashima, T., & Igarashi, T. (2014, Feb. 13). The effects of social network composition on attitudinal ambivalence. The 15th Annual Meeting of the Society for Personality and Social Psychology. Austin, TX, USA.
Hirashima, T., Ito, H., Tani, I., Yasunaga, K., & Tujii, M. (2013, July 18). Construct validity of the Japanese Version of the Adolescent/Adult Sensory Profile assessed on the basis of data from people with autism spectrum disorder. The 12th European Congress of Psychological Assessment. Donostia-San Sebastián, Spain, 202.
Yasunaga, K., Ito, H., Tani, I., Hirashima, T., & Tsujii, M. (2013, July 18). The factor structure of Repetitive Behavior Scale-Revised in Japanese individuals with autism spectrum disorder. The 12th European Congress of Psychological Assessment. Donostia-San Sebastián, Spain, 178.
Ito, H., Hirashima, T., Yasunaga, K., Tani, I., & Tsujii, M. (2013, July 20). Validation of a Japanese Version of the Sensory Profile: Comparison between individuals with and without developmental disorders. The 12th European Congress of Psychological Assessment. Donostia-San Sebastián, Spain, 230.
Tani, I., Ito, H., Hirashima, T., Yasunaga, K., & Tsuji., M. (2013, July 20). Development of the Japanese Version of the Vineland Adaptive Behavior Scales, Second Edition: Item analysis and Developmental Changes of the Adaptive Behavior Scales. The 12th European Congress of Psychological Assessment. Donostia-San Sebastián, Spain, 255.
Hirashima, T., Tsuchiya, K., Motoyoshi, T., & Yoshida, T. (2013, Jan. 18). Feeling conflicted and decision-making process: The effects of attitudinal ambivalence on information search and elaboration. Poster session presented at the 14th Annual Meeting of the Society for Personality and Social Psychology, 226. New Orleans, USA.
Nomura, K., Okada, K., Noujima, Y., Kojima, S., Tanaka, Y., Shima, Y., Hirashima, T., Amano, & M., Fukumoto, R. (2012, July). Clinical studies of attention deficit hyperactivity disorder (ADHD) in the infancy. Poster presented at the 20th World Congress of IACAPAP. Paris, France.
Hirashima, T., Tsuchiya, K., Motoyoshi, T., & Yoshida, T. (2012, Mar. 31). The effects of attitudinal ambivalence on information search. Poster session presented at the Asian Congress of Psychology and Behavioral Science. Osaka, Japan.
Tanaka, Y., Okada, K., Noujima, Y., Kojima, S., Shima, Y., Hirashima, T., Amano, M., Ogura, M., Hatagaki, C., Fukumoto, R., & Nomura, K. (2012, March). Utility of health checkups in 5-year-old children for screening for developmental disorders. Poster presented at the 20th European Congress of Psychiatry. Prague, Czech.
Hirashima, T., Tsuchiya, K., Motoyoshi, T., & Yoshida, T. (2012, Jan. 27). The effects of attitudinal ambivalence on behavioral intention formation. Poster session presented at the 13th Annual Meeting of the Society for Personality and Social Psychology, 143. San Diego, USA.