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Racing to remember: a theory of decision control in event-based prospective memory

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journal contribution
posted on 2023-05-19, 21:11 authored by Strickland, L, Loft, S, Remington, RW, Heathcote, A
Event-based prospective memory (PM) requires remembering to perform intended deferred actions when particular stimuli or events are encountered in the future. We propose a detailed process theory within Braver's (2012) proactive and reactive framework of the way control is maintained over the competing demands of prospective memory decisions and decisions associated with ongoing task activities. The theory is instantiated in a quantitative "Prospective Memory Decision Control" (PMDC) architecture, which uses linear ballistic evidence accumulation (Brown & Heathcote, 2008) to model both PM and ongoing decision processes. Prospective control is exerted via decision thresholds, as in Heathcote, Loft, and Remington's (2015) "Delay Theory" of the impact of PM demands on ongoing-task decisions. However, PMDC goes beyond Delay Theory by simultaneously accounting for both PM task decisions and ongoing task decisions. We use Bayesian estimation to apply PMDC to experiments manipulating PM target focality (i.e., the extent to which the ongoing task directs attention to the features of PM targets processed at encoding) and the relative importance of the PM task. As well as confirming Delay Theory's proactive control of ongoing task thresholds, the comprehensive account provided by PMDC allowed us to detect both proactive control of the PM accumulator threshold and reactive control of the relative rates of the PM and ongoing-task evidence accumulation processes. We discuss potential extensions of PMDC to account for other factors that may be prevalent in real-world PM, such as failures of memory retrieval.

History

Publication title

Psychological Review

Volume

125

Issue

6

Pagination

851-887

ISSN

0033-295X

Department/School

School of Psychological Sciences

Publisher

Amer Psychological Assoc

Place of publication

750 First St Ne, Washington, USA, Dc, 20002-4242

Rights statement

Copyright 2018 American Psychological Association

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in psychology

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