The meta-perceptual rail is a linear track along which mount mirror apertures and other props and stimuli can be mounted. It is used for meta-perceptual experiments, testing the limits of visual and meta-perceptual experience. It can be used as an introspective device to explore metaphysical and somaesthetic questions of our experiences and location self in relation to the physical body.
‘Such rails are typically made of wood and designed to be very stiff. The rail normally begins with a chin rest followed by a graduated grove extending from this point. This allows other features such as holders for perceptual stimuli, filters, apertures, mirrors and cameras to be bolted down and precisely shifted along the length of the rail.’