Objective This test is focused on functional magnetic resonance imaging(fMRI) of visual cortex by using echo planar imaging(EPI) and blood oxygenation level dependent(BOLD) contrast. Methods 36 normal volunteers and 17 patients with lesions at occipital lobe were included in this test. The echo planar images of the occipital area were acquired at visual stimulation and rest phases. Results The primary visual cortex was located at the bilateral calcarine cortex, which belonged to Brodmann area 17. The fun...