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Temporal Bell Inequalities in Cognition
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Description: There is widespread evidence that human memory is constructive, so that recollective processes may alter the information retrieved or impact on subsequent recollections. We examine a framework for narrowing down the nature of such recollective processes, from physics. In Physics, the Temporal Bell (TB) inequality offers a general test of quantum structure. We present an empirical memory paradigm which allows a test of the TB inequality behaviorally, using a novel kind of ‘change judgment’, whereby participants are asked to decide whether there has been a change in a question across different time points of a scenario. Across two experiments, we were able to observe clear evidence for the violation of a TB inequality in one case, offering evidence for quantum-like processes in memory. The present results complement other recent work purporting the relevance of quantum-like representations in memory and raise questions regarding the adaptive value of such representations.