Neurocognitive patterns dissociating semantic processing from executive control are linked to more detailed off-task mental time travel.

Scientific Reports
Hao-Ting WangJonathan Smallwood

Abstract

Features of ongoing experience are common across individuals and cultures. However, certain people express specific patterns of thought to a greater extent than others. Contemporary psychological theory assumes that individual differences in thought patterns occur because different types of experience depend on the expression of different neurocognitive processes. Consequently, individual variation in the underlying neurocognitive architecture is hypothesised to determine the ease with which certain thought patterns are generated or maintained. Our study (N = 178) tested this hypothesis using multivariate pattern analysis to infer shared variance among measures of cognitive function and neural organisation and examined whether these latent variables explained reports of the patterns of on-going thoughts people experienced in the lab. We found that relatively better performance on tasks relying primarily on semantic knowledge, rather than executive control, was linked to a neural functional organisation associated, via meta-analysis, with task labels related to semantic associations (sentence processing, reading and verbal semantics). Variability of this functional mode predicted significant individual variation in the types of ...Continue Reading

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Software Mentioned

SCCA
surfstat Matlab
CompCor
Statsmodels
scikit
CRAN
Python
MATLAB
Neurosynth
Freesurfer

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