Stereomotion processing in the human occipital cortex

Although a high proportion of the motion selective cells in primate

motion area, MT, are disparity-selective, there is no convincing

evidence for cells in this area specific to stereomotion-in-depth and the

neural basis of stereomotion processing remains obscure. With

functional magnetic resonance imaging (fMRI), we identify an

occipito-temporal region activated by cyclopean stereomotion-in-depth

stimulation, centered anterior to the human motion complex hMT+.

This discovery suggests a reconceptualization of the architecture of the

motion complex to incorporate the processing of motion in the third

dimension.