P 79 Physiological assessment of the sense of agency in psychogenic movement disorders

Psychogenic movement disorders (PMD) are conditions characterized by the occurrence of unwanted motoric symptoms in which a somatic reason cannot be found. As patients suffering from PMD experience their pathological movements as non-voluntary, it is hypothesized that those patients have an altered sense of agency (SoA). SoA is defined as the feeling of controlling ones own actions and through them controlling events in the external world (Haggard and Tsakiris, 2009). SoA can be assessed by measuring the intentional binding (IB) effect.

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