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Focussing in reasoning and decision making
P Legrenzi1, V Girotto, P N Johnson-Laird
1Dipartimento di Psicologia, Università degli Studi di Trieste, Italy.
Cognition
|October 1, 1993
Summary
Cognitive processes like reasoning and decision-making rely on mental models, leading to a "focussing" bias. This bias restricts thinking to explicitly represented information, impacting logical inferences and information seeking.
Area of Science:
- Cognitive Psychology
- Decision Science
- Reasoning Research
Background:
- Reasoning and decision-making share underlying cognitive mechanisms.
- Mental models are crucial for both processes.
- A phenomenon termed 'focussing' limits thought to explicit model representations.
Purpose of the Study:
- To investigate the 'focussing' phenomenon in cognitive tasks.
- To demonstrate how focussing impacts reasoning and decision-making.
- To explore methods for mitigating the focussing bias.
Main Methods:
- Analysis of logical inference failures (modus tollens).
- Examination of performance in Wason's selection task.
- Study of information-seeking behavior in decision-making.
- Investigation of counterfactual reasoning scenarios.
Main Results:
- Focussing hinders modus tollens inferences by neglecting unrepresented cases.
- Participants in Wason's task focus on explicitly represented cards.
- Decision-making information requests are biased towards the primary action.
- Focussing influences counterfactual scenario construction.
Conclusions:
- The focussing bias is a pervasive phenomenon across multiple cognitive domains.
- Mental model construction inherently leads to limitations in reasoning and decision-making.
- Experimental manipulations can reduce the impact of the focussing bias.