One of the major controversies in cognitive neuroscience is whether the primary visual
cortex and nearby areas are involved in visual mental imagery. In an fMRI study we
examined the brain activity of 10 healthy subjects under different task conditions: in the
perception condition subjects saw complex geometrical shapes and had to decide whether
other highlighted stimuli fell inside or outside the figure. In the imagery condition subjects
saw only the highlighted stimuli and were instructed to imagine the previously studied …