The Spanish study in the Journal of Clinical and Experimental Neuropsychology called “Cognitive complaints in women with fibromyalgia: Are they due to depression or to objective cognitive dysfunction?” recurited105 women with fibromyalgia for their analysis.
Fibromyalgia is characterized by widespread pain, cognitive dysfunction, sleep dysfunction and fatigue. However, the cognitive dysfunction of fibrofog with its concentration issues has not always been thought of to be from the FM. Studies have shown it is from the pain, from the sleep dysfunction and even from depression.
Eighty-four percent of the patients reported subjective cognitive complaints. Depression scores, everyday physical functioning, and working memory performance were most strongly associated with subjective cognitive complaints. These three variables were significant predictors for subjective cognitive complaints with a final model explaining 32% of the variance. Study
In conclusions “Cognitive complaints are very frequent in patients with fibromyalgia, and these are related to functional and cognitive impairment as well as to depressive symptoms.” Study
In other words, even if the patient has depression, all the cognitive issues are not related to it.