{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T20:02:10Z","timestamp":1769112130598,"version":"3.49.0"},"reference-count":42,"publisher":"MIT Press - Journals","issue":"10","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Neural Computation"],"published-print":{"date-parts":[[2014,10]]},"abstract":"<jats:p> We have calculated the intrinsic dimensionality of visual object representations in anterior inferotemporal (AIT) cortex, based on responses of a large sample of cells stimulated with photographs of diverse objects. Because dimensionality was dependent on data set size, we determined asymptotic dimensionality as both the number of neurons and number of stimulus image approached infinity. Our final dimensionality estimate was 93 (SD: [Formula: see text] 11), indicating that there is basis set of approximately 100 independent features that characterize the dimensions of neural object space. We believe this is the first estimate of the dimensionality of neural visual representations based on single-cell neurophysiological data. The dimensionality of AIT object representations was much lower than the dimensionality of the stimuli. We suggest that there may be a gradual reduction in the dimensionality of object representations in neural populations going from retina to inferotemporal cortex as receptive fields become increasingly complex. <\/jats:p>","DOI":"10.1162\/neco_a_00648","type":"journal-article","created":{"date-parts":[[2014,7,24]],"date-time":"2014-07-24T15:06:10Z","timestamp":1406214370000},"page":"2135-2162","source":"Crossref","is-referenced-by-count":39,"title":["Dimensionality of Object Representations in Monkey Inferotemporal Cortex"],"prefix":"10.1162","volume":"26","author":[{"given":"Sidney R.","family":"Lehky","sequence":"first","affiliation":[{"name":"Cognitive Brain Mapping Laboratory, RIKEN Brain Science Institute, Wako, Saitama, Japan, and Computational Neurobiology Laboratory, Salk Institute, La Jolla, CA 92037, U.S.A."}]},{"given":"Roozbeh","family":"Kiani","sequence":"additional","affiliation":[{"name":"Center for Neural Science, New York University, New York, NY 10003, U.S.A."}]},{"given":"Hossein","family":"Esteky","sequence":"additional","affiliation":[{"name":"Research Group for Brain and Cognitive Sciences, School of Medicine, Shahid Beheshti University, Tehran 19857, Iran, and School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Niavaran, Tehran 19857, Iran"}]},{"given":"Keiji","family":"Tanaka","sequence":"additional","affiliation":[{"name":"Cognitive Brain Mapping Laboratory, RIKEN Brain Science Institute, Wako, Saitama 351-0198, Japan"}]}],"member":"281","reference":[{"key":"B1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pcbi.1003167"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1016\/S0031-3203(03)00176-6"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.2002.1039212"},{"key":"B4","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuron.2012.01.010"},{"key":"B5","first-page":"63","volume":"20","author":"Farmer S. 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