As with many disorders of a neurological etiology, psychiatric disturbances are often prevalent in MS; the onset of these psychiatric disturbances may be due to an underlying neurological mechanism or the stressors in the changes of quality of life (QoL) (Papathanasopoulos & Papadimitriou, 2010). In fact, the occurrence of psychiatric symptoms co-occurring with MS is high relative to the general population, which has led to someone who unknowingly has MS being misdiagnosed with a psychiatric disorder, especially when psychiatric symptoms precede neurological ones (Kosmidis et al., 2010). The psychiatric disturbances observed in MS are manifested through behavioral symptoms related to mood, affect, and cognition, thereby significantly affecting
