Table 3.

Random effect sizes for the neuropsychological domains.

Domain	Average random effect size	SE	95% CI
Cognitive screen	−0.106	0.167	(−0.434, 0.221)
Attention and concentration	−0.251	0.144	(−0.534, 0.032)
Executive functions	−0.025	0.209	(−0.434, 0.384)
Psychomotor speed	−0.197	0.144	(−0.480, 0.086)
Learning and memory	−0.305*	0.148	(−0.595, −0.014)
Visuospatial skills	−0.124	0.227	(−0.568, 0.321)
Language	−0.379	0.265	(−0.898, 0.139)
Verbal fluency	−0.553*	0.125	(−0.798, −0.309)
Phonemic fluency	−0.842*	0.149	(−1.135, −0.550)
Semantic fluency	−0.405*	0.179	(−0.757, −0.053)

^*Function was decreased after deep brain stimulation of the subthalamic nucleus for Parkinson's disease.