Diagnosis of Functional Neurological Disorder of movement clinically established according to Diagnostic and Statistical Manual of Mental Disorders (DSM)-5 criteria

The patient will be treated according to Lacanian psychoanalytic ethics, which allows to adequately respond to the patient's request for healing but who at the same time does not ignore the progress of scientific research in the neurological field

the Clinical global impression scale will be used. It is a brief 3-item observer-rated scale that assess severity of illness with assignable scores ranging from 0 to 7 (at every time time point), the global improvement with assignable scores ranging from 0 to 7 (from the second time point), and the efficacy index with assignable scores ranging from 1 to 16 (relationship between therapeutic efficacy and undesirable effects). Higher scores on these scales mean a worse outcome.

The Short Form Health Survey 36 (SF-36) will be used. It is a generic, multidimensional tool, consisting of 36 questions that can be divided into 8 scales (Physical functioning, limitations due to physical health, limitations due to emotional problems, energy and fatigue, emotional well-being, social activities, pain, general health perception) expressed as percentage values 0-100%. Higher scores on these scales mean a better quality of life.

Will be used the Symbol Digit Modalities Test, which measures the processing speed, in the oral version of this test (Nocentini et al., 2006). The assignable performance's scores ranging from 0 to 110. The cut-off for normality in italian population for this oral version was 34.2. Higher scores on these scales mean a better processing speed.

Stroop test

Transcranial Magnetic Stimulation (TMS) will be used to evaluate the change of neuronal plasticity in a subgroup of patients who will not present contraindications to the method. The TMS uses short-lived magnetic fields and high intensity applied at the scalp level to activate the neurons of a small region of the cerebral cortex through an electromagnetic induction. When these impulses are applied repeatedly, it is possible to induce plastic modification of cortical excitability. Any increase or decrease in amplitude, which persists after the end of TMS repetitive stimulation, indicates that there have been changes in the cortical, long term potentiation (LTP) or depression (LTD).

State-Trait Anxiety Inventory-Form Y (STAI-Y). The STAI-Y is a self-report questionnaire consisting of two 20-item scales providing separate measures of state and trait anxiety, on a 4-point Likert scale, with scores ranges from 20 to 80, with higher scores indicating more severe outcome.