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The Change of speed of retrieval of items from long-term memory: Control by the parallel hazard functions in a parallel system

Authors
James T. Townsend
Indiana University ~ Department of Psychological and Brain Sciences
Abstract

Classical work by Bousefield & Sedgewick in the 1940s and that by McGill in the 1960s applied what amounted to stochastic death processes with exponential interarrival times to the inter-retrieval times of times from long-term memory in free recall of items from a category. The exponential models used predicted increasingly longer inter-retrieval times over time and/or number of retrievals. We were interested in the generality of this phenomenon. Our mathematical investigations employing hazard functions, found that although this type of behavior does indeed, follow from a broad class of death processes, there exist intriguing, if perhaps unusual-in-nature, classes of hazard functions (underpinning the parallel systems) which violate this seemingly natural kind of behavior.

Tags

Keywords

parallel systems
hazard function
associational memory
free recall
death processes
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Cite this as:

Townsend, J. (2023, July). The Change of speed of retrieval of items from long-term memory: Control by the parallel hazard functions in a parallel system. Abstract published at MathPsych/ICCM/EMPG 2023. Via mathpsych.org/presentation/1217.