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Working Memory

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.

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Working Memory Training for Older Participants: A Control Group Training Regimen and Initial Intellectual Functioning Assessment

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The multinomial model of prospective memory: validity of ongoing-task parameters.

Sebastian S Horn¹, Ute J Bayen, Rebekah E Smith

¹Institut für Experimentelle Psychologie, Abteilung Mathematische und Kognitive Psychologie, Heinrich-Heine-Universität Düsseldorf, Germany. s.horn@uni-duesseldorf.de

Experimental Psychology

|November 26, 2010

Summary

This study validates the multinomial processing tree (MPT) model for event-based prospective memory. Findings show ongoing task difficulty impacts detection parameters but not prospective or retrospective memory estimates.

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Last Updated: Jun 6, 2026

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Area of Science:

Cognitive Psychology
Human Memory Research

Background:

Prospective memory (PM) is crucial for daily functioning, involving remembering to perform intended actions.
The multinomial processing tree (MPT) model offers a framework for understanding event-based prospective memory (EBPM).

Purpose of the Study:

To provide further experimental validation for the MPT model of EBPM.
To specifically investigate how ongoing task difficulty influences the detection parameters within the MPT model.

Main Methods:

Three experiments embedded event-based prospective memory tasks within ongoing color-matching tasks.
Varied response instructions were used across experiments.
The MPT model was applied to analyze prospective and ongoing memory components.

Main Results:

Manipulating the difficulty of the ongoing task influenced the ongoing-task detection parameters of the MPT model.
Estimates for the prospective memory (PM) components (prospective and retrospective) remained unaffected by ongoing task difficulty.
Results support the MPT model's ability to differentiate between ongoing task processing and PM processes.

Conclusions:

The findings provide strong experimental support for the validity and utility of the MPT model in EBPM research.
The MPT model successfully distinguishes the effects of ongoing task demands from core prospective memory functions.