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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...

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Related Experiment Video

Updated: Aug 12, 2025

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Published on: June 12, 2017

The Trail Making Test (part B) is associated with working memory: A concurrent validity study.

Julio Ernesto Pérez-Parra^1,2, Francia Restrepo-de-Mejía^1,3

¹Doctoral Program in Cognitive Sciences, Universidad Autónoma de Manizales, Manizales, Colombia.

Applied Neuropsychology. Adult

|January 27, 2023

Summary

The Trail Making Test Part B (TMT-B) shows promise as a tool for assessing working memory in adults. This study found significant correlations between TMT-B performance and established working memory tests.

Keywords:

Event related potentials Trail Making Test neuropsychological testing validity study working memory

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Last Updated: Aug 12, 2025

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Assessing Working Memory in Children: The Comprehensive Assessment Battery for Children – Working Memory (CABC-WM)

Published on: June 12, 2017

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

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

Published on: September 20, 2020

Traditional Trail Making Test Modified into Brand-new Assessment Tools: Digital and Walking Trail Making Test

Published on: November 23, 2019

Area of Science:

Neuroscience
Cognitive Psychology

Background:

The Trail Making Test Part B (TMT-B) is often linked to executive functions like problem-solving and working memory.
Previous research has suggested TMT-B's potential in evaluating higher-order cognitive processes.

Purpose of the Study:

To investigate the validity of the TMT-B as a measure of working memory capacity in adults.
To establish preliminary evidence for TMT-B's utility in cognitive assessments.

Main Methods:

A cross-sectional study involving 56 healthy adults (aged 19-55).
Linear correlation analyses were performed between TMT-B scores and various neuropsychological and electrophysiological working memory tests.
Included Corsi Block-Tapping Test, Wechsler Adult Intelligence Scale-IV Working Memory Index, and auditory Event Related Potentials (N200, P300).

Main Results:

Significant positive correlations were observed between TMT-B scores and the Corsi Block-Tapping Test (overall score).
TMT-B scores also correlated significantly with the Working Memory Index of the WAIS-IV.
Significant correlations were found with auditory Event Related Potentials (N200 and P300 latencies and amplitudes).

Conclusions:

The TMT-B demonstrates preliminary validity as an indicator of working memory function in adults.
Further research is needed to confirm its differential validity against other cognitive tests.