Y. Zhang, H. Wang, Q. Zhu, X. Li, J. Han, G. Jiahui, W. M. Shim, R. Kim, M. I. Gobbini, K. Heo, A. Sepe, J. V. Haxby, M. Feilong, W. Vanduffel
Response hyperalignment (RHA) of fMRI patterns acquired during movie-viewing in 12 rhesus monkeys revealed shared representational spaces despite idiosyncratic functional topographies. RHA greatly improved inter-subject correlation of movie response time-series in occipital, temporal, and prefrontal cortices and afforded highly accurate between-subject decoding of movie time-points and estimation of idiosyncratic functional topographies. These results demonstrate that nonhuman primates share high-dimensional, high-capacity representational spaces encoded in idiosyncratic fine-grained functional topographies.