Methods
ataxia
SPINOCEREBELLAR ATAXIA TYPE 1
Individuals with spinocerebellar ataxia type 3 who participated in a randomized, double‐blind, sham‐controlled trial received a custom‐designed questionnaire about short‐term and long‐term treatment expectations, allocation preferences, and interpretation of treatment arm assignment based on the presence or absence of clinical improvement. To evaluate whether expectations were specifically related to the application of cerebellar transcranial direct current stimulation (tDCS) or more generally reflect an overly positive attitude of patients with ataxia toward trial participation and results, the last questions involved a hypothetical scenario in which an oral drug was tested against placebo with an aim identical to that of our tDCS study.