Table 3 Symptoms scores on the last day of the treatment week (Day 5) and the last day of the maintenance period (2-month follow-up).

From: Alpha transcranial alternating current stimulation reduces depressive symptoms in people with schizophrenia and auditory hallucinations: a double-blind, randomized pilot clinical trial

 

Treatment week + Maintenance period

Symptom scores

(Mean ± SD)

tACS + tACS

(n = 8)

tACS + Sham

(n = 6)

Sham + tACS

(n = 5)

Sham + Sham

(n = 6)

Day 5

    

AHRS

25.1 ± 8.0

19.8 ± 5.1

25.6 ± 6.8

21.0 ± 5.9

HPSVQ

25.9 ± 8.4

23.2 ± 5.3

26.4 ± 5.7

23.2 ± 1.8

PANSS

    

–Total

66.1 ± 14.7

58.2 ± 14.6

67.8 ± 5.0

64.7 ± 17.9

–Positive symptoms

18.6 ± 4.0

17.2 ± 4.7

16.6 ± 3.4

17.3 ± 5.2

–Negative symptoms

15.5 ± 5.1

15.0 ± 7.0

17.6 ± 6.5

17.7 ± 3.5

–General psychopathology

32.0 ± 8.4

26.0 ± 5.7

22.6 ± 2.4

29.7 ± 10.3

–Hallucinations

4.4 ± 0.7

4.8 ± 0.8

4.6 ± 0.5

4.7 ± 1.0

2-month follow-up

    

AHRS

23.9 ± 9.6

15.7 ± 5.0

26.4 ± 6.8

17.6 ± 7.1

HPSVQ

25.6 ± 9.8

20.5 ± 5.7

26.5 ± 4.2

20.3 ± 4.6

PANSS

    

–Total

67.0 ± 10.1

58.0 ± 12.6

65.2 ± 5.2

60.0 ± 20.4

–Positive symptoms

18.3 ± 3.9

17.0 ± 3.2

17.2 ± 2.17

15.7 ± 5.2

–Negative symptoms

16.3 ± 5.3

15.7 ± 6.8

16.8 ± 4.4

15.5 ± 5.0

–General psychopathology

32.5 ± 5.8

25.3 ± 5.4

31.2 ± 2.5

28.8 ± 11.0

–Hallucinations

4.4 ± 0.7

4.3 ± 0.8

4.6 ± 0.5

4.5 ± 0.8