Human V6: The Medial Motion Area

被引:160
作者
Pitzalis, S. [1 ,2 ,3 ]
Sereno, M. I. [4 ,5 ,6 ]
Committeri, G. [7 ,8 ]
Fattori, P. [9 ]
Galati, G. [2 ,3 ,10 ]
Patria, F. [2 ,3 ]
Galletti, C. [9 ]
机构
[1] Univ Rome Foro Ital, Dept Educ Sport & Human Movement, I-00194 Rome, Italy
[2] Santa Lucia Fdn, NeuroImaging Lab, I-00179 Rome, Italy
[3] Santa Lucia Fdn, Neuropsychol Lab, I-00179 Rome, Italy
[4] Univ Calif San Diego, Dept Cognit Sci, La Jolla, CA 92093 USA
[5] UCL, Dept Psychol, London WC1E 7HX, England
[6] UCL, Dept Psychol, Birkbeck Coll, London WC1H 0AP, England
[7] Univ Gabriele dAnnunzio, Dept Clin Sci & Bioimaging, I-66013 Chieti, Italy
[8] Univ Gabriele dAnnunzio, ITAB, I-66013 Chieti, Italy
[9] Univ Bologna, Dept Human & Gen Physiol, I-40126 Bologna, Italy
[10] Sapienza Univ, Dept Psychol, I-00185 Rome, Italy
关键词
flowfields; functional localizer; MT; V5; parieto-occipital cortex; wide-field retinotopic mapping; HUMAN VISUAL-CORTEX; SUPERIOR TEMPORAL SULCUS; OPTIC FLOW STIMULI; RESONANCE-IMAGING FMRI; SURFACE-BASED ANALYSIS; FIELD-OF-VIEW; MACAQUE MONKEY; HUMAN BRAIN; MST NEURONS; RESPONSE SELECTIVITY;
D O I
10.1093/cercor/bhp112
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Cortical-surface-based functional Magnetic Resonance Imaging mapping techniques and wide-field retinotopic stimulation were used to verify the presence of pattern motion sensitivity in human area V6. Area V6 is highly selective for coherently moving fields of dots, both at individual and group levels and even with a visual stimulus of standard size. This stimulus is a functional localizer for V6. The wide retinotopic stimuli used here also revealed a retinotopic map in the middle temporal cortex (area MT/V5) surrounded by several polar-angle maps that resemble the mosaic of small areas found around macaque MT/V5. Our results suggest that the MT complex (MT+) may be specialized for the analysis of motion signals, whereas area V6 may be more involved in distinguishing object and self-motion.
引用
收藏
页码:411 / 424
页数:14
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