Further observations on the effects of external picoTesla range magnetic fields on visual memory and visuospatial...

The occurrence of cognitive deficits in patients with multiple sclerosis (MS) has been recognized since 1877 when Charcot first observed "enfeeblement of memory" in his patients and subsequently Gowers (1893) described "failure of memory." The presence of cognitive deficits in MS may be a major cause of disability which is often severe enough to preclude employment. Impairment of memory including visual memory is one of the most common features of the dementia of MS and may be evident in early stages of the disease. Disturbances of visuospatial and visuomotor functions are also commonly encountered in MS patients reflecting the multiplicity of lesion sites in the disease. Recently, I have reported that treatment with magnetic fields (MF) in the picoTesla range is an efficacious modality in the management of MS and have demonstrated improvement in visuospatial functions with this treatment modality. In the present communication I present four additional patients with MS in whom application of these extremely weak MF produced an improvement in visual memory as well as visuospatial and visuomotor functions. The data presented demonstrate the unique efficacy of this treatment modality in reversing some of the cognitive deficits associated with MS.