TABLE 4.

Sensation rating (0–10 scale) before, during, and after stimulation.

	Before stimulation						During stimulation						After stimulation
	Active		Sham				Active		Sham				Active		Sham
Ratings	M	SD	M	SD	t	p	M	SD	M	SD	t	p	M	SD	M	SD	t	p
Tingling	0.04	0.13	0.08	0.23	–0.97	0.33	0.90	1.25	1.33	1.08	–0.67	0.51	0.37	1.14	0.25	0.37	0.23	0.72
Itching	0.37	1.18	0.08	0.22	1.23	0.22	0.60	1.38	0.13	0.32	0.90	0.37	0.57	1.35	0.63	1.06	–0.15	0.88
Burning	0.30	1.09	0.10	0.23	–0.004	0.99	1.28	2.06	1.28	1.53	0.66	0.51	0.47	1.36	0.54	0.96	–0.18	0.86
Pain	0.15	0.53	0.49	1.22	0.04	0.96	0.56	1.55	0.53	1.22	–0.96	0.34	0.59	1.65	1.53	2.47	–1.18	0.25
Fatigue	0.50	1.18	0.64	0.94	–0.83	0.41	0.39	1.01	0.71	1.00	–0.34	0.73	0.50	0.96	1.00	1.13	–1.25	0.21
Nervousness	0.09	0.19	0.12	0.37	–1.19	0.24	0.12	0.24	0.33	0.63	–0.24	0.81	0.07	0.15	0.23	0.49	–1.19	0.24
Headache	0.20	0.59	0.13	0.30	0.41	0.68	0.19	0.56	0.12	0.27	0.38	0.71	0.21	0.61	0.45	0.60	–1.06	0.29
Difficulty concentrating	0.39	0.86	0.42	0.64	–1.69	0.10	0.51	0.87	1.05	0.83	–0.11	0.91	0.28	0.64	0.61	0.64	–1.37	0.18
Mood change	0.19	0.40	0.21	0.39	–0.80	0.43	0.14	0.31	0.24	0.31	–0.09	0.92	0.14	0.43	0.36	0.55	–1.15	0.25
Vision change	0.04	0.08	0.03	0.09	–0.23	0.81	0.07	0.12	0.09	0.17	0.16	0.87	0.12	0.27	0.07	0.16	0.49	0.62
Visual sensation (phosphenes)	0.00	0.00	0.00	0.00	1.36	0.18	0.02	0.06	0.00	0.00	0.32	0.33	0.04	0.07	0.01	0.05	1.08	0.29

M = mean, SD = standard deviation, t = independent t-test, p = p-value.