Parallel processing in the visual system is particularly well-defined in the LGN of the thalamus, with the magnocellular subdivision selective for high temporal frequencies and low spatial frequencies and the parvocellular subdivision selective for low temporal frequencies, high spatial frequencies, and color. However, these subdivisions have rarely been studied in humans, due to their small size and location deep in the brain. In collaboration with David Feinberg and Essa Yacoub, we have employed high-resolution fMRI and selective visual stimulation to reliably localize the magnocellular and parvocellular subdivisions of the LGN in the human brain (Denison et al., 2014). This will facilitate investigations into the role of these specialized early visual pathways in human visual perception, attention, and cognition.