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Trail making and cognitive set-shifting.

R D Olivera-Souza¹, J Moll, L J Passman

¹Rua General Belford 226-20961-000 Rio de Janeiro RJ, Brasil.

Arquivos De Neuro-Psiquiatria

|October 6, 2000

Summary

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Part B of the Trail Making Test (TMT) effectively measures cognitive set-shifting. A verbal adaptation (vTMT) confirmed TMT-B

Area of Science:

Neuropsychology
Cognitive Psychology
Psychometrics

Background:

The Trail Making Test (TMT) is widely used in neuropsychological assessments.
Part B of the TMT is often interpreted as a measure of cognitive flexibility.

Purpose of the Study:

To investigate whether Part B of the Trail Making Test (TMT) is a valid measure of cognitive set-shifting ability.
To validate a verbal adaptation of the TMT (vTMT) as a measure of set-shifting.

Main Methods:

A study involving 55 healthy subjects.
Administered the conventional written TMT and a novel verbal TMT (vTMT).
Analyzed the correlation between TMT Part B and vTMT scores, controlling for age and education.

Main Results:

Related Experiment Videos

A significant positive association was found between TMT Part B and vTMT scores (r = 0.59, p < 0.001).
This correlation remained significant after adjusting for age and educational attainment.

Conclusions:

The findings support the use of TMT Part B as a valid indicator of cognitive set-shifting.
The verbal TMT (vTMT) shows promise as an alternative measure for assessing the ability to alternate between cognitive categories.