Abstract: In the words of the late Sir Colin Blakemore, neurologists have historically sought to infer brain functions in a manner akin to taking a hammer to a computer— analyzing localized anatomical lesions caused by trauma, tumors, or strokes, noting deficits, and inferring what functions certain brain regions may be responsible for. This approach exemplifies a deletion heuristic, where the absence of a specific function reveals insights about the underlying structures or mechanisms responsible for it. By observing what is lost when a particular brain region is damaged, throughout the history of the field, neurologists have pieced together the intricate relationship between anatomy and function.