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Carlos Alós-Ferrer1, Michele Garagnani2
1Lancaster University Management School, Department of Economics, United Kingdom; Universidad Jaume I de Castellón, Department of Economics, Spain.
Human errors in cognitive tasks can be faster or slower than correct responses. A new model predicts error speed ex ante, offering insights into cognitive conflict and decision-making processes.
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Area of Science:
- Cognitive Psychology
- Human Factors
- Computational Neuroscience
Background:
- Human errors in cognitive tasks exhibit variable response times (RTs), being faster or slower than correct responses.
- Existing models can fit observed error RT distributions but struggle with ex ante prediction of error speed.
- Predicting error RT characteristics is crucial for understanding underlying cognitive processes in decision-making.
Purpose of the Study:
- To empirically validate a simple nonparametric model for predicting when human errors are faster or slower than correct responses.
- To assess the model's applicability to generalized conflict tasks and its ability to predict error rate differences.
- To test the hypothesis of process multiplicity in cognitive tasks based on predictive performance.
Main Methods:
- Utilized 20 diverse datasets comprising 31 experiments across various domains.
- Employed a simple nonparametric model to predict error RTs relative to correct response times.
- Analyzed predictions for generalized Stroop effects and error rate differences in conflict tasks.
Main Results:
- The nonparametric model successfully predicted whether errors would be faster or slower than correct responses across datasets.
- Model predictions accurately encompassed generalized Stroop effects and error rate variations.
- The model's predictions were overwhelmingly supported by empirical data, validating its hypotheses.
Conclusions:
- A simple nonparametric model can reliably predict error RT characteristics ex ante in cognitive tasks.
- The model's success in generalized conflict tasks supports the assumption of process multiplicity.
- This approach provides a novel framework for generating and testing hypotheses about cognitive control and decision-making.