LAUSR

fMRI has been an important tool for understanding the functional organization of the human visual cortex for colour vision. Here I focus on three distinct approaches used in fMRI, each addressing a different question. Univariate measurements of BOLD amplitude responses have localized the areas of the human visual cortex with high colour responses. fMRI adaptation has the potential to define the selectivity (tuning) of the neural responses in these areas to colour in relation to achromatic responses or within the colour space. Finally, recent multivariate approaches specifically analyze the distributed nature of the responses to colour across voxel populations and have made important in-roads into understanding how colour is represented at voxel and subvoxel scales.