数理モデルと実験で迫る集団行動の複雑さ

個人の意思決定やwellbeingの状態は、たとえば人々がいかに協調し集合知を生み出すか、あるいはフリーライダー問題をいかに克服するかといった、次の時点における集団レベルの現象たちを規定します。逆に、ある時点における集団の状態は、次の時点における個人の行動や価値に影響するでしょう。文化進化ダイナミクス、集団行動学、および人間個人の価値関数（wellbeing関数）のフィードバック過程を陽に仮定したモデルを作り、人間の集団、社会、文化の共進化力学の基礎を明らかにすることを目指しています。

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

論文

1. Toyokawa W, and Gaissmaier W., "Conformist social learning leads to self-organised prevention against adverse bias in risky decision making", eLife, 11:e75308. (doi: 10.7554/eLife.75308)
2. Kameda T, Toyokawa W, and Tindale RS, "Information aggregation and collective intelligence beyond the wisdom of crowds", Nature Reviews Psychology. (doi: 10.1038/s44159-022-00054-y)
3. Laland KN, Toyokawa W and Oudman T, "Animal Learning as a Source of Developmental Bias", Evolution and Development. (doi: 10.1111/ede.12311)
4. Toyokawa W, Whalen A and Laland KN, "Social learning strategies regulate the wisdom and madness of interactive crowds", Nature Human Behaviour, 3: 183-193. (doi: 10.1038/s41562-018-0518-x).
5. Kim H, Toyokawa W & Kameda T, "How do we decide when (not) to free-ride? Risk tolerance predicts behavioral plasticity in cooperation", Evolution and Human Behavior, 40: 55-64. (doi:10.1016/j.evolhumbehav.2018.08.001)
6. Muthukrishna M, Henrich J, Toyakawa W, Hamamura T, Kameda T, & Heine S J., "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)
7. Toyokawa W., "Scrounging by foragers can resolve the paradox of enrichment", Royal Society Open Science, 4: 160830. (doi:10.1098/rsos.160830)
8. Toyokawa W, Saito Y and Kameda T.,"Individual differences in learning behaviours in humans: Asocial exploration tendency does not predict reliance on social learning", Evolution and Human Behavior, 38 (3): 325-333. (doi:10.1016/j.evolhumbehav.2016.11.001)
9. Toyokawa W, Kim H and Kameda T., "Human collective intelligence under dual exploration-exploitation dilemmas", PLoS ONE 9(4): e95789. (doi: 10.1371/journal.pone.0095789)
10. Kameda T, Wisdom T, Toyokawa W and Inukai K, "Is consensus-seeking unique to humans? A selective review of animal group decision-making and its implications for (human) social psychology", Group Processes & Intergroup Relations, 15, 673-689. (doi: 10.1177/1368430212451863)