percept is created, but it would have no meaning for individuals who have an associative agnosia. Subtypes of associative visual agnosia Achromatopsia, an inability to distinguish different colors. Prosopagnosia, an inability to recognize human faces. Individuals with prosopagnosia know that they are looking at faces, but cannot recognize people by the sight of their face, even people whom they know well. Simultagnosia, an inability to recognize multiple objects in a scene, including distinct objects within a spatial layout and distinguishing between "local" objects and "global" objects, such as being able to see a tree but not the forest or vice versa. Topographagnosia, an inability to process the spatial layout of an environment, including landmark agnosia, difficulty recognizing buildings and places; difficulty building mental maps of a location or scene; and/or an inability to discern the orientation between objects in space. Pure alexia, an inability to read. Orientation agnosia: an inability to judge or determine orientation of objects. Pantomime agnosia: an inability to understand pantomimes (gestures). It appears that the inferior cortical visual cortex is critical in recognizing pantomimes. Patient CK Background Patient C.K. was born in 1961 in England and emigrated to Canada in 1980. In January 1988, C.K. sustained a head injury from a motor vehicle accident while out for a jog. Following the accident, C.K. experienced many cognitive issues, mood swings, poor memory, and temper outbursts. C.K. also had motor weakness on the left side and a left homonymous hemianopia. He recovered well, retaining normal intelligence and normal visual acuity. He was able to complete a master's degree in history, later working as a manager at a large corporation. Although his recovery was successful in other areas of cognition, C.K. still struggles to make sense of the visual world. Associative visual agnosia Magnetic resonance imaging (MRI) showed bilateral thinning of C.K.'s occipital lobe which resulted in associative visual agnosia. Patients that have visual agnosia are unable to identify visually presented objects. They can identify these objects through other modalities such as touch but if presented visually, they are unable to. Associative agnosic patients cannot create a detailed representation of the visual world in their brains, they can only perceive elements of whole objects. They also cannot form associations between objects or assign meaning to objects. C.K. makes many mistakes when trying to identify objects. For example, he called an abacus "skewers on a kebab" and a badminton racquet