This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Which lobe of the cerebral cortex contains the small bilateral cortical area that controls voluntary fixation movements? 
Select and explain. 
A. Frontal lobe, B. Limbic lobe, C. Occipital lobe, D. Parietal lobe
A: Frontal lobe
Answer: A: Frontal lobe 
Explanation: A bilateral premotor cortical region of the frontal lobes controls voluntary fixation movements. A lesion of this region makes it difficult for a person to “unlock” their eyes from one  point of fixation and then move them to another point.