In　humans,　In　humans,　functional　imaging　studies　have　demonstrated　a　homologue　of　the　macaque　motion　complex,　MT+　suggested　to　contain　both　middle　temporal　(MT)　and　medial　superior　temporal　(MST),　in　the　ascending　limb　of　the　inferior　temporal　sulcus.　Two　of　the　most　well　studied　areas　are　MT　and　MST.　Macaque　area　MST　has　been　shown　to　have　considerably　larger　receptive　fields　than　area　MT.　The　receptive　fields　of　MT　cells　typically　extend　only　a　few　degrees　into　the　ipsilateral　visual　field,　while　area　MST　neurons　have　receptive　fields　that　extend　well　into　the　ipsilateral　visual　field.　However,　for　human　most　studies　thus　far　have　only　concentrated　on　the　center　and/or　peri-center　of　the　visual　field.　We　used　functional　magnetic　resonance　imaging　(fMRI)　distinguish　putative　human　areas　MST　from　MT+　by　wide-view　stimuli.　Random　dots　stimuli　placed　in　the　four　steps　(0∼8°,　8∼16°,　16∼32°,　32∼64°　eccentricity)　field,　produced　a　large　cluster　of　functional　activation　in　our　subjects　consistent　with　previous　reports　of　human　area　MT.　Wide-field　random　dots　stimuli　limited　to　the　peripheral　retina　produced　activation　only　in　an　anterior　subsection　of　the　MT+　complex,　likely　corresponding　to　putative　MST　[Fig.　1A,　B].　We　also　investigated　the　retinotopy　characteristic　of　MT+　[Fig.　1C,　DJ.　The　retinotopy　stimulus　was　a　60°　diameter　circular　aperture　filled　with　white　dots　on　a　black　background.　At　any　given　time,　the　dots　within　a　45°　wedge　of　the　aperture　moved　inward/outward　from　fixation　as　in　the　MT+　localizer　stimulus.　©　2010　IEEE.