Dual-task Stroop Paradigm for Detecting Cognitive Deficits in High-functioning Stroke Patients.

Area of Science:

• Neuroscience
• Cognitive Psychology
• Rehabilitation Medicine

Background:

• Standard cognitive assessment scales often fail to detect subtle cognitive impairments in high-functioning stroke survivors.
• Dual-task assessments show promise for identifying cognitive deficits in this population.
• The Stroop paradigm offers superior sensitivity and specificity for attentional assessment.

Purpose of the Study:

• To present a dual-task assessment based on the Stroop paradigm for identifying cognitive deficits in high-functioning stroke patients.
• To evaluate the feasibility of this dual-task Stroop assessment.
• To address the ceiling effect observed in conventional clinical assessments for this patient group.

Main Methods:

• A single- and dual-task evaluation utilizing the Stroop paradigm was designed.
• Feasibility was confirmed through case experiments.
• Synchronized functional near-infrared spectroscopy (fNIRS) was employed for concurrent evaluation.

Main Results:

• The Stroop reaction time and correct rate were identified as key indicators for cognitive level assessment.
• The study demonstrated the feasibility of the dual-task Stroop assessment in a clinical context.
• fNIRS data supported the cognitive load differences between single- and dual-task conditions.

Conclusions:

• The dual-task Stroop paradigm assessment is a sensitive tool for detecting cognitive deficits in high-functioning stroke patients.
• This approach can overcome the limitations of traditional cognitive assessments, particularly the ceiling effect.
• The findings support the integration of dual-task Stroop assessments into clinical practice and cognitive training for stroke rehabilitation.