Flow chart of recruitment for the study.

<p>Flow chart of recruitment for the study.</p

Cognitive domains assessed and neuropsychological tasks.

<p>Cognitive domains assessed and neuropsychological tasks.</p

Mean comparisons in cognitive tests, separating patients with and without fibromyalgia and those who were depressed and non-depressed.

<p>These figures show the 4 different scenarios: A) no effect; B) an effect associated with depression; C) an effect associated with both depression and fibromyalgia; D) an effect associated with the interaction between the two.</p

Mean and standard deviations for cognitive tests in patients with and without fibromyalgia separately in subjects with and without depressive symptoms.

<p>Mean and standard deviations for cognitive tests in patients with and without fibromyalgia separately in subjects with and without depressive symptoms.</p

Demographic and clinical characteristics for samples groups.

<p>Demographic and clinical characteristics for samples groups.</p

Change in daily living, quality of life, and emotional variables.

<p>Change in daily living, quality of life, and emotional variables.</p

Baseline characteristics of study participants.

<p>Baseline characteristics of study participants.</p

Flow diagram of trial participation.

<p>Flow diagram of trial participation.</p

Change in cognitive measures at week 48.

<p>Change in cognitive measures at week 48.</p

Changes in NPZ-7 and in information processing speed and executive functioning domains.

<p>(a) Mean change in NPZ-7. (b) Mean change in information processing speed. (c) Mean change in executive functioning. Values are expressed as z-score means, bars as standard errors. P values and d sizes are provided for rivastigmine vs control group comparisons. Abbreviations: CG, control group; EF, executive functioning; IPS, information processing speed; LG, lithium group; RG, rivastigmine group.</p