Abstract: In a preferred embodiment, an apparatus for detecting the presence of, and providing for the release of, a person in a vehicle trunk compartment, including: a presence detector system to detect motion in the vehicle trunk compartment; and upon detection of motion in the vehicle trunk compartment, the presence detector system causes the activation of one or more functions selected from the group consisting of: a vehicle operator alert, vehicle headlights, a vehicle horn, a vehicle alarm, a self-contained alarm, a trunk lid release and, a trunk light.

Abstract: A headset is provided for holding electrodes against a subject's head for extended periods of time which has several pairs of support poles or rods whereon several flexible electrode supporting bands attach that allow variable placement and holding of various electrodes in various regions on the head. The regions for placement are the occipital, the central and the frontal regions of the head. The electrode supporting bands are elastic and are attached by hook and eye means to opposing rods so that the bands can be slidably and flexibly adjustably mounted on the headset apparatus. This allows tension holding the electrodes against the subject's head to be adjusted for an optimum balance of comfort and contact.