Relationships Between Cognitive Impairments and Motor Learning After Stroke: A Scoping Review.

Area of Science:

• Neurorehabilitation
• Cognitive Neuroscience
• Motor Control

Background:

• Stroke is a primary cause of long-term disability globally.
• Sensorimotor recovery post-stroke relies on motor learning principles.
• Cognitive impairments frequently accompany motor deficits after stroke, yet their interplay with motor learning remains unclear.

Purpose of the Study:

• To review existing evidence on cognitive impairments and motor learning after stroke.
• To identify methodologies for studying motor learning in stroke survivors with cognitive deficits.
• To determine which cognitive domains most influence post-stroke motor learning.

Main Methods:

• Systematic literature search and screening of over 400 studies.
• Inclusion of 19 studies examining the relationship between post-stroke cognitive impairments and motor learning.
• Analysis of diverse experimental designs, sample sizes, and cognitive assessment tools.

Main Results:

• Cognitive impairments were found to negatively affect motor improvement and learning capacity in most included studies.
• Attention, executive function, and memory were identified as the most impactful cognitive domains.
• Significant heterogeneity existed in study designs and cognitive evaluation methods.

Conclusions:

• Future research should incorporate detailed cognitive assessments, retention testing, and combined clinical/kinematic outcomes.
• Tailoring stroke rehabilitation interventions to address specific cognitive deficits is essential for optimizing sensorimotor recovery.
• Sensitive cognitive assessment instruments are vital for effective intervention design.