Effect of interacting minds on response criterion in two person perceptual decision making
Abstract Previous studies have indicated that two-person judgments are more accurate than individual judgments in perceptual decision-making. Most studies have indicated that the improvement of performance accuracy reflects changes in visual sensitivity by using a bias-free paradigm to eliminate the...
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Nature Portfolio
2025-07-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-09850-x |
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| author | Tatsuru Kawachi Yousuke Kawachi |
| author_facet | Tatsuru Kawachi Yousuke Kawachi |
| author_sort | Tatsuru Kawachi |
| collection | DOAJ |
| description | Abstract Previous studies have indicated that two-person judgments are more accurate than individual judgments in perceptual decision-making. Most studies have indicated that the improvement of performance accuracy reflects changes in visual sensitivity by using a bias-free paradigm to eliminate the effects of decision criteria. However, biases in judgment are natural during daily decision-making. Therefore, we should carefully consider the effect of response bias on two-person decision-making. Thus, this study investigated changes in two-person decision-making using signal detection theory. We conducted two experiments. The results of the two experiments revealed that not only does two-person judgment improve perceptual sensitivity but also shifts the decision criterion. This study provides new insights into response bias as a factor for better understanding two-person interactions. |
| format | Article |
| id | doaj-art-74bdc5cdf0544d5d84a8c3c45febeeaf |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-74bdc5cdf0544d5d84a8c3c45febeeaf2025-08-20T03:46:05ZengNature PortfolioScientific Reports2045-23222025-07-011511810.1038/s41598-025-09850-xEffect of interacting minds on response criterion in two person perceptual decision makingTatsuru Kawachi0Yousuke Kawachi1Department of Psychology, Graduate School of Arts and Letters, Tohoku UniversityDepartment of Psychology, Graduate School of Arts and Letters, Tohoku UniversityAbstract Previous studies have indicated that two-person judgments are more accurate than individual judgments in perceptual decision-making. Most studies have indicated that the improvement of performance accuracy reflects changes in visual sensitivity by using a bias-free paradigm to eliminate the effects of decision criteria. However, biases in judgment are natural during daily decision-making. Therefore, we should carefully consider the effect of response bias on two-person decision-making. Thus, this study investigated changes in two-person decision-making using signal detection theory. We conducted two experiments. The results of the two experiments revealed that not only does two-person judgment improve perceptual sensitivity but also shifts the decision criterion. This study provides new insights into response bias as a factor for better understanding two-person interactions.https://doi.org/10.1038/s41598-025-09850-xTwo person decision makingCollective decision makingSignal detection theoryResponse criterionSensitivity |
| spellingShingle | Tatsuru Kawachi Yousuke Kawachi Effect of interacting minds on response criterion in two person perceptual decision making Scientific Reports Two person decision making Collective decision making Signal detection theory Response criterion Sensitivity |
| title | Effect of interacting minds on response criterion in two person perceptual decision making |
| title_full | Effect of interacting minds on response criterion in two person perceptual decision making |
| title_fullStr | Effect of interacting minds on response criterion in two person perceptual decision making |
| title_full_unstemmed | Effect of interacting minds on response criterion in two person perceptual decision making |
| title_short | Effect of interacting minds on response criterion in two person perceptual decision making |
| title_sort | effect of interacting minds on response criterion in two person perceptual decision making |
| topic | Two person decision making Collective decision making Signal detection theory Response criterion Sensitivity |
| url | https://doi.org/10.1038/s41598-025-09850-x |
| work_keys_str_mv | AT tatsurukawachi effectofinteractingmindsonresponsecriterionintwopersonperceptualdecisionmaking AT yousukekawachi effectofinteractingmindsonresponsecriterionintwopersonperceptualdecisionmaking |