The basis for a broadened scanning framework is described, which may also function as a means for understanding how human minds filter their perceptions of the world. The framework is based on the Four-Quadrant Integral model of Ken Wilber and the Spiral Dynamics model of Don Beck and Chris Cowan. An analytical tool (cross-level analysis) is presented for examining views of the world in terms of both the perceptual filters of the viewer and the aspect of the world being viewed, a technique which is also useful for analysing how other scanners do their scanning. A notation for cross-level analysis is presented and described, with examples of its use.