Preferably, an embodiment of a neurophysiological training headset includes at least a plurality of sensor assemblies each sensor assembly secured by a retention web. Each of the plurality of sensor assemblies are positioned in contact adjacent at a predetermined location about a cranium of a subject. The preferred neurophysiological training headset further includes a headphone secured to the retention web by an attachment member, in which the attachment member provides a continuously active tensioning mechanism. The continuously active tensioning mechanism promotes continuous force induced contact adjacency of each of the sensor assemblies with the cranium of the subject.