Cognitive deficits in patients with chronic fatigue syndrome compared to those with major depressive disorder and healthy controls.
Constant, E L, Adam, S, Gillain, B et al.·Clinical neurology and neurosurgery·2011
This study tested memory and attention in people with ME/CFS, comparing them to people with depression and healthy volunteers. People with ME/CFS showed real, measurable problems with attention and memory, but these problems were NOT simply caused by depression or by getting tired during testing. Importantly, the cognitive difficulties in ME/CFS appeared to be their own distinct issue, separate from their mood symptoms.