A Hamiltonian Driven Quantum-Like Model for Overdistribution in Episodic Memory Recollection

Frontiers in Physics

Broekaert, Jan B.¹  Busemeyer, Jerome R.² 

[1] Center Leo Apostel for Interdisciplinary Studies, Vrije Universiteit Brussel, Brussels, Belgium;Department of Psychology, City, University of London, London, United Kingdom

关键词: Episodic over distribution;    Disjunction fallacy;    Subadditivity;    Quantum Cognition;    Hamiltonian operator;   

DOI  :  10.3389/fphy.2017.00023

学科分类：物理（综合）

来源: Frontiers

【 摘 要 】

While people famously forget genuine memories over time, they also tend to mistakenly over-recall equivalent memories concerning a given event. The memory phenomenon is known by the name of \emph{episodic overdistribution} and occurs both in memories of disjunctions and partitions of mutually exclusive events and has been tested, modeled and documented in the literature. The total classical probability of recalling exclusive sub-events most often exceeds the probability of recalling the composed event, i.e. a \emph{subadditive} total. We present a Hamiltonian driven propagation for the Quantum Episodic Memory model developed by Brainerd (et al., 2015) for the episodic memory overdistribution in the experimental immediate \emph{item false memory} paradigm (Brainerd and Reyna, 2008, 2010, 2015). Following the Hamiltonian method of Busemeyer and Bruza (2012) our model adds time-evolution of the perceived memory state through the stages of the experimental process based on psychologically interpretable parameters -- $\gamma_c$ for \emph{recollection capability} of cues, $\kappa_p$ for bias or description-dependence by probes and $\beta$ for the average gist component in the memory state at start. With seven parameters the Hamiltonian model shows good accuracy of predictions both in the EOD-disjunction and in the EOD-subadditivity paradigm. We noticed either an outspoken preponderance of the gist over verbatim trace, or the opposite, in the initial memory state when $\beta$ is real. Only for complex $\beta$ a mix of both traces is present in the initial state for the EOD-subadditivity paradigm.

【 授权许可】

CC BY