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Table 3 Preliminary efficacy

From: Generalizing remotely supervised transcranial direct current stimulation (tDCS): feasibility and benefit in Parkinson’s disease

  Baseline
(Mean ± SD)
Follow-Up
(Mean ± SD)
Cohen’s d p - value n
Visual Learning – BVMT-R 16.3 ± 6.6 20.3 ± 5.8 0.64 0.50 13
Reaction Time – Cogstate 2.55 ± 0.04 2.53 ± 0.06 − 0.46 0.19 8
Choice Reaction Time – Cogstate 2.75 ± 0.06 2.72 ± 0.07 −0.38 0.08 7
Negative Affect - PANAS 16.4 ± 5.0 13.8 ± 3.5 −0.59 0.01* 11
Positive Affect - PANAS 36.4 ± 7.3 34.3 ± 7.5 −0.19 0.24 12
PROMIS Fatigue 18.6 ± 3.5 16.9 ± 3.8 −0.45 0.10 12
PROMIS Sleep 31.4 ± 5.3 29.1 ± 6.3 −0.40 0.16 12
  1. *Statistical significance at p > 0.05 level. Not all participants had the capacity to complete all assessments due to motor impairment
  2. Brief Visuospatial Memory Test Revised (BVMT-R) [32]
  3. Cogstate Brief Battery [33]
  4. Positive and Negative Affect Schedule (PANAS) [36]
  5. Patient Reported Outcomes Measurement Information System (PROMIS) [35]