Effects of tDCS and Physical Therapy in Chronic Migraine

This scale will be used to measure the patients' pain intensity. The scale consists of a 100 mm line within the limits of no pain and worst possible pain. The patient is instructed to trace the intensity of his pain within the limits of the line. Changes of 1.1 to 1.2 cm indicate minimal clinical improvement.

We analyzed the following points with the pressure algometer: anterior and posterior fibers of the temporal muscle, frontal region, insertion of the sternocleidomastoid muscle, insertion and middle fibers of the upper trapezius muscle, thenar region of the right upper limb.

This test assesses the impact of headache on quality of life. A total score less than 50 means no severity; between 50 and 55, some severity; between 56 and 59, substantial severity; greater than 60, severe impact.

This questionnaire assesses the inability to perform activities of daily living of people with migraine.The MIDAS score is divided into grades: Grade I - little or no disability (scores 0-5), grade II - mild disability (scores 6-10), grade III - moderate disability (scores 11-20), and grade IV - severe disability (score equal to or greater than 21).

This questionnaire assesses health-related quality of life. This test consists of 36 items. Higher scores indicate greater functionality.

This scale rates the improvement associated with the intervention on a 7-item scale ranging from "1=no change" to "7=much better".

This questionnaire assesses the participants' level of depression. Scores between 0-11 mean minimal depression; between 12-19: mild depression; between 20-35: moderate depression and between 36-63: severe depression.

This instrument assesses the participants' anxiety. It consists of 40 statements that consider trait anxiety and state anxiety. Answers are given on a four-point Likert-type scale (1 - not to 4 - very much), and the score can vary between 20-80. Anxiety level classification can be low (20-33 points), medium (33-49 points), and high (49-80 points).

It is an instrument composed of 14 questions with response options ranging from zero to four (0=never; 1=almost never; 2=sometimes; 3=almost always, and 4=always). Questions with a positive connotation (4, 5, 6, 7, 9, 10, and 13) have their scores inverted: 0=4, 1=3, 2=2, 3=1, and 4=0. The other questions have negative valence and are added directly. The score is the sum of the scores for each question and can range from 0 to 56.

This is an instrument that evaluates the recognition of facial expressions. The bank of faces from Lacop - Facial Expression Database will be used with expressions of joy, fear, anger, sadness, disgust, and surprise from two male and two female models. The manipulation of the intensity of the expressions will be carried out through the Morpheus 4.0 Software to generate faces with different emotional intensities with incremental advances of 25% from the neutral face until reaching 100% of expression intensity.