Watercolour, gouache, pencil and ink on watercolour paper, with digital reflection.
The primary visual cortex, located at the back of the brain (posterior pole), is the simplest cortical visual area. It is responsible for the processing of spacial information regarding static and moving objects, and is integral in pattern recognition. Hallucinations of the primary visual cortex have been classified into four groups (form constants), all geometric in nature, and include tunnels, spirals, lattices, and cobwebs.
©ADG2012
