Unsupervised Natural Experience Rapidly Alters Invariant Object Representation in Visual Cortex Export

@article{citeulike:3243601, abstract = {Object recognition is challenging because each object produces myriad retinal images. Responses of neurons from the inferior temporal cortex (IT) are selective to different objects, yet tolerant ("invariant") to changes in object position, scale, and pose. How does the brain construct this neuronal tolerance? We report a form of neuronal learning that suggests the underlying solution. Targeted alteration of the natural temporal contiguity of visual experience caused specific changes in IT position tolerance. This unsupervised temporal slowness learning (UTL) was substantial, increased with experience, and was significant in single IT neurons after just 1 hour. Together with previous theoretical work and human object perception experiments, we speculate that UTL may reflect the mechanism by which the visual stream builds and maintains tolerant object representations. 10.1126/science.1160028}, author = {Li, Nuo and Dicarlo, James J.}, citeulike-article-id = {3243601}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1160028}, citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/321/5895/1502}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/18787171}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=18787171}, day = {12}, doi = {10.1126/science.1160028}, journal = {Science}, keywords = {computation, object, vision}, month = {September}, number = {5895}, pages = {1502--1507}, posted-at = {2008-09-12 07:27:40}, priority = {2}, title = {Unsupervised Natural Experience Rapidly Alters Invariant Object Representation in Visual Cortex}, url = {http://dx.doi.org/10.1126/science.1160028}, volume = {321}, year = {2008} }

TY - JOUR ID - citeulike:3243601 L3 - citeulike-article-id:3243601 N2 - Object recognition is challenging because each object produces myriad retinal images. Responses of neurons from the inferior temporal cortex (IT) are selective to different objects, yet tolerant ("invariant") to changes in object position, scale, and pose. How does the brain construct this neuronal tolerance? We report a form of neuronal learning that suggests the underlying solution. Targeted alteration of the natural temporal contiguity of visual experience caused specific changes in IT position tolerance. This unsupervised temporal slowness learning (UTL) was substantial, increased with experience, and was significant in single IT neurons after just 1 hour. Together with previous theoretical work and human object perception experiments, we speculate that UTL may reflect the mechanism by which the visual stream builds and maintains tolerant object representations. 10.1126/science.1160028 IS - 5895 JF - Science EP - 1507 TI - Unsupervised Natural Experience Rapidly Alters Invariant Object Representation in Visual Cortex VL - 321 SP - 1502 KW - computation KW - object KW - vision AU - Li, Nuo AU - Dicarlo, James PY - 2008/09/12/ UR - http://dx.doi.org/10.1126/science.1160028 ER -