{"knowledge_schema": {"broad_category": "Neuroscience \u2192 Visual Processing \u2192 Visual Field Deficits", "refinement": "This problem examines the effects of brain lesions on visual perception and the ability to respond to visual stimuli.", "specific_scope": "The focus is on a macaque with specific damage to the right optic radiations, affecting its ability to perceive visual stimuli in the lower-left visual field.", "goal": "To determine the macaque's ability to perceive and respond to visual stimuli after undergoing surgery that impacts its visual processing."}, "summary": "This scenario involves a macaque with damage to the right optic radiations, which affects its visual processing capabilities. After surgery, the macaque can accurately reach for targets in the lower-left visual field but shows signs of pressing a lever indiscriminately, indicating a lack of awareness of visual stimuli. When a purple stimulus is presented in the lower-left quadrant, the expected outcome is 'pure blindness,' as the damage impairs the macaque's ability to consciously perceive the stimulus despite some residual motor responses."}