A comprehensive cognitive analysis of cervical dystonia: A single centre study

Area of Science:

• Neurology
• Neuroscience
• Cognitive Science

Background:

• Cervical dystonia (CD) is a motor disorder with recognized non-motor features, including cognitive changes.
• Previous studies show varied cognitive alterations in CD, but inconsistencies in testing limit clear definitions.
• The interplay between cognition, motor symptoms, and quality of life in CD remains poorly understood.

Purpose of the Study:

• To conduct a comprehensive analysis of cognitive function in adult-onset idiopathic isolated cervical dystonia (AOICD).
• To investigate the relationship between cognitive performance, motor severity, mood, and quality of life in CD patients.

Main Methods:

• Included 13 patients with AOICD who underwent extensive cognitive assessments.
• Evaluated general intellectual functioning, memory (verbal and visual), executive functions, and social cognition.
• Assessed mood symptoms, motor severity (TWSTRS-2), and quality of life.

Main Results:

• Mean estimated premorbid function was within the normal range.
• Overall cognitive performance was largely within normal limits, with a mean TWSTRS-2 severity of 11.
• Lowest performance was observed in social cognition (Florida Affect Battery), verbal recall, spatial working memory, word retrieval, and working memory.

Conclusions:

• Patients with AOICD tend to perform within average ranges on most cognitive tests.
• Deficits were noted in social cognition, word retrieval, spatial working memory, and processing speed.
• These findings contribute to a more detailed understanding of cognitive profiles in cervical dystonia.