Research Scientist

Office: D 514
Tel.: +49 7531 88-3291
Fax: +49 7531 88-5288

Research interests:
His research focuses on the computational underpinnings and eco-evolutionary implications of human social learning and their relationships with group decision-making and collective behaviour. Using computational modelling and Bayesian statistical methods, coupled with online realtime behavioural experimentation, he is quantitatively approaching human social behaviour and group dynamics. He also uses mathematical models to study population dynamics and evolutionary games.

He obtained his PhD and MSc in Behavioural Science (2015 and 2012), and a BSc in Fisheries Science (2010) from Hokkaido University, Hakodate, Japan. He moved to the University of St Andrews, Scotland as the JSPS Overseas Research Fellow (2015-2017). Then He obtained a JSPS Research Fellowship (PD; 2017-2019) jointly working at both the University of St Andrews and the Graduate University of Advanced Studies (a.k.a. 'SOKENDAI'), Hayama, Japan. From 2019, he has been a research scientist collaborating with Prof. Dr. Wolfgang Gaissmaier at the University of Konstanz, Germany.


Toyokawa W, and Gaissmaier W. (2021) Conformist social learning leads to self-organised prevention against adverse bias in risky decision making. bioRxiv. [Code:]

Laland KN, Toyokawa W and Oudman T. (2019) Animal Learning as a Source of Developmental Bias. Evolution and Development.

Kim H, Toyokawa W & Kameda T. (2019). How do we decide when (not) to free-ride? Risk tolerance predicts adaptation of cooperation levels in new settings. Evolution and Human Behavior, 40: 55-64. doi:10.1016/j.evolhumbehav.2018.08.001

Toyokawa W, Whalen A and Laland KN. (2019). Social learning strategies regulate the wisdom and madness of interactive crowds. Nature Human Behaviour, 3: 183-193. doi:10.1038/s41562-018-0518-x .

Muthukrishna M, Henrich J, Toyakawa W, Hamamura T, Kameda T, & Heine S J. (2018). Overconfidence is Universal? Elicitation of Genuine Overconfidence (Ego) Method Reveals Systematic Differences Across Domain, Task Knowledge, and Incentives in Four Populations. PLoS ONE, 13(8): e0202288. doi: 10.1371/journal.pone.0202288

Toyokawa W. (2017). Scrounging by foragers can resolve the paradox of enrichment. Royal Society Open Science, 4: 160830. doi:10.1098/rsos.160830