Table 2.

Long-lasting effects of tDCS sessions reported spontaneously by tinnitus patients

	Sham	Anodal		Cathodal
3		Improvement (intensity and discomfort) during 2 days		Tone different, higher pitch, balance left/right
5		Worsening (intensity and discomfort) during 10 days		During a few days: decreased intensity on the right side, possible increase on the left
7	Slight increase of intensity and higher pitch with less variation, during a few days	Worsening (discomfort) ≥15 days; very high pitch, lack of the tone variations
9		Worsening (intensity and discomfort) during 7 days		Worsening (intensity and discomfort) ≥15 days, lack of the tone variations
10	Increase of intensity during 7 days	Improvement (intensity and discomfort) during ≥15 days		Improvement (intensity and discomfort) ≥15 days; lower tone less uncomfortable
13		Clear “well-being” during the afternoons during ≥15 days
15		During a few days: decrease of intensity on the left, lower tone less uncomfortable
16		Complete but transient resolution of tinnitus a few hours later, alternation of resolution/relapses, better mood		Worsening (intensity and discomfort) during ≥15 days
17		Modulation of intensity, slight pain, progressive return to previous status
19	Transient instability after sham tDCS resolved in 1 hour; increase of intensity >1 hour

Long-lasting positive, negative or other effects (change in pitch, tone, side balance, qualities of tinnitus) spontaneously reported by the patients after sham, anodal and cathodal tDCS. Patients 1, 2, 4, 6, 8, 11, 12, 14, 18, and 20 did not report any lasting effects