ABSTRACT
Why do we stick to well-trodden paths, clinically? Often, it is because a hypothesis is generated, and is then supported by confirmation bias. The chapter describes a patient, David (who arrives with his mother), after a car accident three years earlier. In the history, both describe the increased forgetfulness that David has suffered since then. On assessment, David performed poorly on measures of recent memory and executive function. In supervision, the case is presented as a likely memory impairment, due to damage to medial temporal structures. An alternative, and unanticipated, diagnosis is discussed in supervision, and then confirmed when next time David was seen.
