Abstract
The author is engaged in a research and development project that intends to extend direct perception to spectra that are not now available to humans. This effort might be understood as an attempt to provide an additional sense modality, to magnetic fields, for example. Contemporary understandings of the senses are examined, critiqued and rejected as the basis for further work. Perception is not dependent upon senses as commonly understood, instead, embodied cognition and skill-based theories of perception are used as a guide to enable development.