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Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

Trends in cognitive function before and after stroke in China.

Jianian Hua^1,2, Jianye Dong^1,3, Guo-Chong Chen⁴

¹Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, 199 Ren'ai Road, Suzhou, 215123, China.

|June 6, 2023

Summary

Cognitive function in Chinese adults did not decline faster before stroke. However, stroke onset caused immediate drops in memory and spatial abilities, and faster declines in calculation and attention.

Keywords:

Chinese population Cognitive function Cohort study Stroke

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Area of Science:

Neurology
Epidemiology
Cognitive Science

Background:

Cognitive impairment is common post-stroke, but pre-stroke cognitive trends are understudied, particularly in high-stroke-burden populations like the Chinese.
Understanding pre-stroke cognitive trajectories is crucial for identifying at-risk individuals and developing targeted interventions.

Purpose of the Study:

To model cognitive function trajectories before and after new-onset stroke in a Chinese population.
To investigate whether pre-stroke cognitive decline differs between individuals who will experience a stroke and those who will not.

Main Methods:

Longitudinal study of 13,311 Chinese adults (≥45 years) without prior stroke, assessed between 2011-2018.
Cognitive function evaluated using global cognition scores, including episodic memory, visuospatial abilities, and the 10-item Telephone Interview of Cognitive Status (TICS-10) for calculation, attention, and orientation.

Main Results:

Over 7 years, 4.6% experienced a first stroke. Both stroke and non-stroke groups showed cognitive decline.
No significant difference in pre-stroke cognitive trajectories was found between stroke patients and stroke-free participants.
Stroke onset was linked to acute declines in episodic memory, visuospatial abilities, and global cognition. Post-stroke, TICS-10 decline accelerated compared to pre-stroke rates.

Conclusions:

Chinese stroke patients do not exhibit steeper cognitive decline before stroke compared to their stroke-free counterparts.
Incident stroke is associated with acute cognitive deterioration across multiple domains and accelerated decline in specific cognitive functions like calculation and attention.