Do Infants Really Expect Agents to Act Efficiently? A Critical Test of the Rationality Principle

Recent experiments have suggested that infants' expectations about the actions of agents are guided by a principle of rationality: In particular, infants expect agents to pursue their goals efficiently, expending as little effort as possible. However, these experiments have all presented infant...

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Veröffentlicht in:Psychological science 2013-04, Vol.24 (4), p.466-474
Hauptverfasser: Scott, Rose M., Baillargeon, Renée
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description Recent experiments have suggested that infants' expectations about the actions of agents are guided by a principle of rationality: In particular, infants expect agents to pursue their goals efficiently, expending as little effort as possible. However, these experiments have all presented infants with infrequent or odd actions, which leaves the results open to alternative interpretations and makes it difficult to determine whether infants possess a general expectation of efficiency. We devised a critical test of the rationality principle that did not involve infrequent or odd actions. In two experiments, 16-month-olds watched events in which an agent faced two identical goal objects; although both objects could be reached by typical, everyday actions, one object was physically (Experiment 1) or mentally (Experiment 2) more accessible than the other. In both experiments, infants expected the agent to select the more-accessible object. These results provide new evidence that infants possess a general and robust expectation of efficiency.
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subjects Action
Agents
Apples
Babies
Biological and medical sciences
Child development
Child Development - physiology
Cognition
Cognition & reasoning
Cognition - physiology
Cognitive development
Cognitive psychology
Developmental psychology
Efficiency - physiology
Expectation
Experimentation
Experiments
Female
Fundamental and applied biological sciences. Psychology
Humans
Infant
Infants
Logic
Male
Newborn. Infant
Psychology, Child
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Rationality
Reasoning
Social attribution, perception and cognition
Social cognition
Social Perception
Social psychology
Swine
title Do Infants Really Expect Agents to Act Efficiently? A Critical Test of the Rationality Principle
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