Final answer:
Oliver Sacks is the main psychologist who contends that Prosopagnosia, a disorder characterized by the inability to recognize faces, might not be limited to face recognition but related to broader visual object recognition issues.
Step-by-step explanation:
The psychologist who argues that Prosopagnosia is not a face specific problem is Oliver Sacks. He suggested that the condition may be related to more general deficits in visual object recognition, and not limited to faces. Prosopagnosia, or face blindness, is a sensory perception disorder characterized by the inability to recognize faces. It can result from trauma to the brain or be present from birth, with evidence pointing to the underdevelopment of the anterior fusiform gyrus of the temporal lobe, where facial recognition likely occurs.
Individuals with prosopagnosia often have to rely on alternative cues for identifying people, such as the sound of a person's voice or unique physical features. For example, a mole, hair color, or distinct clothing style can help someone with prosopagnosia to recognize others.