Inhibitory control and working memory predict rhythm production abilities in patients with neurocognitive deficits

Area of Science:

• Neuroscience
• Cognitive Psychology
• Rehabilitation Medicine

Background:

• Rhythm perception and production deficits occur in various neurological and psychiatric disorders.
• Rhythmic abilities correlate with cognitive functions in neurotypical individuals.

Purpose of the Study:

• To investigate the association between rhythmic abilities and cognitive functions in individuals with neurocognitive deficits from acquired brain lesions.
• To determine if executive functions predict rhythmic abilities in this population.

Main Methods:

• Assessed rhythm perception (time/beat) and production (finger-tapping) in 35 participants with brain lesions.
• Administered neuropsychological tests for cognitive functions (inhibitory control, working memory, cognitive flexibility, etc.).
• Utilized multiple regression analyses to identify predictors of rhythmic abilities, controlling for confounders.

Main Results:

• Better inhibitory control and working memory predicted more stable rhythmic movement alignment to a pace.
• Working memory also predicted stable rhythmic movements without a pace and better anticipatory timing.
• Executive functions significantly predicted all rhythm production abilities, but not rhythm perception.

Conclusions:

• Executive functions, particularly working memory and inhibitory control, are crucial for rhythm production in individuals with acquired brain lesions.
• Rhythm perception abilities were not linked to executive functions in this study.
• Findings may guide the development of rhythm-based interventions for neuropsychological rehabilitation.