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Still, it is unclear how and where numerosity information is coded when this information is retained during a working memory delay phase. Such temporal storage could be realized by the same structures as perceptual processes, or be transformed to a more abstract representation, potentially involving prefrontal regions. FMRI decoding studies allow the identification of brain areas that exhibit multi\u2010voxel activation patterns specific to the content of working memory. Here, we used an assumption\u2010free searchlight\u2010decoding approach to test where numerosity\u2010specific codes can be found during a 12 s retention period. Participants (<jats:italic>n<\/jats:italic> = 24) performed a retro\u2010cue delayed match\u2010to\u2010sample task, in which numerosity information was presented as visual dot arrays. We found mnemonic numerosity\u2010specific activation in the right lateral portion of the intraparietal sulcus; an area well\u2010known for perceptual processing of numerosity. The applied retro\u2010cue design dissociated working memory delay activity from perceptual processes and showed that the intraparietal sulcus also maintained working memory representation independent of perception.<\/jats:p>","DOI":"10.1002\/hbm.25402","type":"journal-article","created":{"date-parts":[[2021,3,11]],"date-time":"2021-03-11T09:59:37Z","timestamp":1615456777000},"page":"2778-2789","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Representation of visual numerosity information during working memory in humans: An <scp>fMRI<\/scp> decoding study"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4166-1126","authenticated-orcid":false,"given":"Ian Morgan Leo","family":"Pennock","sequence":"first","affiliation":[{"name":"Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology Freie Universit\u00e4t Berlin  Berlin Germany"},{"name":"Center for Mind\/Brain Sciences \u2013 CIMeC University of Trento  Rovereto Italy"},{"name":"Institute of Cognitive Science Universit\u00e4t Osnabr\u00fcck  Osnabr\u00fcck Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1612-1301","authenticated-orcid":false,"given":"Timo Torsten","family":"Schmidt","sequence":"additional","affiliation":[{"name":"Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology Freie Universit\u00e4t Berlin  Berlin Germany"},{"name":"Institute of Cognitive Science Universit\u00e4t Osnabr\u00fcck  Osnabr\u00fcck Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8270-4436","authenticated-orcid":false,"given":"Dilara","family":"Zorbek","sequence":"additional","affiliation":[{"name":"Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology Freie Universit\u00e4t Berlin  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Felix","family":"Blankenburg","sequence":"additional","affiliation":[{"name":"Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology Freie Universit\u00e4t Berlin  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2021,3,11]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0019551"},{"key":"e_1_2_8_3_1","first-page":"139","article-title":"Decoding the content of visual short\u2010term memory under distraction in occipital and parietal areas Katherine","volume":"176","author":"Bettencourt K. 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