CFS Cognitive and Neurological Aspects of CFS

Question 1

What term is commonly used to describe the cognitive difficulties in CFS, including problems with memory, concentration, and mental clarity?

Accepted Answer

Brain fog

Answer

Encephalopathy

Answer

Psychogenic amnesia

Answer

Cognitive decline syndrome

Question 2

Which type of memory is most frequently found to be impaired in objective testing of CFS patients?

Accepted Answer

Working memory

Answer

Long-term declarative memory

Answer

Procedural memory

Answer

Implicit memory

Question 3

Post-exertional cognitive impairment in CFS means that cognitive symptoms tend to:

Accepted Answer

Worsen after physical or mental exertion

Answer

Improve following physical activity due to endorphin release

Answer

Remain stable regardless of activity level

Answer

Occur only during periods of inactivity

Question 4

Which neuroimaging finding has been reported in multiple studies of CFS patients?

Accepted Answer

Reduced gray matter volume in specific brain regions

Answer

Enlarged hippocampal volume

Answer

Calcium deposits in the thalamus

Answer

Increased global cortical thickness

Question 5

How is information processing speed characteristically affected in CFS patients on objective testing?

Accepted Answer

Significantly slowed compared to age-matched healthy controls

Answer

Normal on standardized tests but subjectively impaired

Answer

Faster than normal due to heightened sensory sensitivity

Answer

Variable, with no consistent pattern across studies

Question 6

How does unrefreshing sleep relate to cognitive dysfunction in CFS?

Accepted Answer

Poor sleep quality contributes to worsening of cognitive symptoms

Answer

Sleep quality has minimal impact on next-day cognition in CFS

Answer

Treating sleep disorders fully resolves all cognitive symptoms

Answer

Cognitive symptoms always precede sleep problems as the primary issue

Question 7

Which cognitive domain is generally LEAST affected in CFS patients according to research findings?

Accepted Answer

Language and vocabulary

Answer

Sustained attention

Answer

Processing speed

Answer

Working memory