2016 Fiscal Year Final Research Report
Response threshold variance as a basis of collective rationality.
| Project/Area Number |
26440228
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Ecology/Environment
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2014-04-01 – 2017-03-31
|
| Keywords | 集団的意思決定 / 反応閾値分散 |
|---|
| Outline of Final Research Achievements |
Quality-graded responses are thought to need for rational collective decisions in social insects. however, I find that when there is a variance in response thresholds among units, a collective decision-maker can achieve rational choice by a majority decision because the option with highest quality always collect the largest number of "On" responses. We test this hypothesis using an ant, Myrmica kotokui, and confirmed that they can select the better option in a binary choice. My result showed that response threshold variance is a basis of collective rationality in collective decision-makers including social insects.
|
| Free Research Field |
進化生物学
|
