TABLE 1.
Characteristics of the study sample.
| ID | Age | Sex | Headache type | Headache duration, years | Baseline headache frequency, monthly headache days | Medication use | Order of phases |
| T1 | 21 | Female | Episodic TTH | 3 | 11 | Preventive: None Abortive: NSAID, 1-2 times a month | Neurofeedback-Sham |
| T2 | 42 | Male | Chronic TTH | 27 | 29 | Preventive: Amitriptyline 25 mg a day Abortive: None | Neurofeedback-Sham |
| T3 | 26 | Female | Chronic TTH | 10 | 18 | Preventive: None Abortive: NSAID and combination analgesics, 3-4 times a month | Neurofeedback-Sham |
| T4 | 30 | Female | Episodic TTH | 20 | 13 | Preventive: None Abortive: NSAID, 1-2 times a month | Sham-Neurofeedback |
| T5 | 40 | Female | Episodic TTH | 25 | 14 | Preventive: None Abortive: None | Sham-Neurofeedback |
| T6 | 41 | Female | Episodic TTH | 30 | 14 | Preventive: None Abortive: None | Neurofeedback-Sham |
| T7 | 25 | Female | Episodic TTH | 10 | 9 | Preventive: None Abortive: NSAID, 4 times a month | Sham-Neurofeedback |
| T8 | 21 | Female | Chronic TTH | 13 | 31 (every day) | Preventive: None Abortive: NSAID, 2 times a month | Sham-Neurofeedback |