The Effects of 1 mA tACS and tRNS on Children/Adolescents and Adults: Investigating Age and Sensitivity to Sham Stimulation

Table 3

Side-effects and sensations. Incidence (sum) and intensity (scale 1-4, Ø) of side effects for the different stimulation conditions in the children/adolescents and adult subgroups.

	Incidence				Intensity
	Sham	tRNS	140 Hz	20 Hz	Sham	tRNS	140 Hz	20 Hz
Children/adolescents
Burning	1	0	0	0	2	—	—	—
Difficulties in concentration	1	1	1	1	3	—	3	1
Fatigue	2	0	4	2	2.5	1	2.5	1
Flickering	2	2	0	6	1.5	—	—	2.5
Headache	0	1	0	0	—	1	—	—
Itching	1	0	1	2	1	1	1	1.5
Nervousness	0	0	0	1	—	—	—	1
Pain	1	2	0	1	2	—	—	2
Tingling	1	0	1	3	1	1	1	1.7
Unpleasantness	1	2	0	3	2	—	—	1
Adults
Burning	2	1	2	2	1.5	1	1	1.5
Difficulties in concentration	0	2	0	1	—	1.5	—	2
Fatigue	7	10	7	6	2.4	1.5	1.6	1.8
Flickering	6	2	1	16	1.5	2	2	2.1
Headache	1	1	0	0	1	1	—	—
Itching	1	0	3	4	2	—	1.7	1.3
Nervousness	1	2	1	3	2	1.5	1	1
Pain	2	3	0	3	1.5	1	—	1.7
Tingling	5	1	2	8	1.2	2	2	1.5
Unpleasantness	1	2	1	5	1	1.5	1	1.2