Patients with major depressive disorder (MDD) show impairments in cognitive functions. However, neural mechanisms underlying these disturbances are poorly understood. We investigated whether MDD affects neural mechanisms of involuntary attention studied by auditory evoked potentials (AEPs) and auditory evoked magnetic fields (AEFs).
BioMag Laboratory, Helsinki University Central Hospital and the Cognitive Brain Research Unit, University of Helsinki, Helsinky, Finland. Seppo.Kahkonen@helsinki.fi