ET = Essential Tremor; PD = Parkinson’s disease; HVLT = Hopkins Verbal Learning Test; WMS-III = Wechsler Memory Scale, 3rd Edition; Error bars represent the 95% confidence interval.
Top panel depicts performance of the overall sample on the word list (HVLT) and story memory (WMS-III) tasks across immediate and delayed recall conditions. The panels below show the scores of the of the ET and Parkinson groups separately,