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Only few neuroimaging studies have explored the mechanism of attention\u2010based refreshing, which is a type of rehearsal and is thought to implement the dynamic components of WM allowing for update of WM contents. Here, we took advantage of the distinct coding properties of the superior parietal lobe (SPL), which retains spatial layout information, and the right inferior frontal gyrus (IFG), which retains frequency information of vibrotactile stimuli during tactile WM. In an fMRI delayed match\u2010to\u2010sample task, participants had to internally rehearse sequences of spatial layouts or vibratory frequencies. Our results replicate the dissociation of SPL and IFG for the retention of layout and frequency information in terms of activation differences between conditions. Additionally, we found strong premotor cortex (PMC) activation during rehearsal of either stimulus type. To explore interactions between these regions we used dynamic causal modeling and found that activation within the network was best explained by a model that allows the PMC to drive activity in the SPL and IFG during rehearsal. This effect was content\u2010specific, meaning that the PMC showed stronger influence on the SPL during pattern rehearsal and stronger influence on the IFG during frequency rehearsal. In line with previously established PMC contributions to sequence processing, our results suggest that it acts as a content\u2010independent area that flexibly recruits content\u2010specific regions to bring a WM item into the focus of attention during the rehearsal of tactile stimulus sequences.<\/jats:p>","DOI":"10.1002\/hbm.25220","type":"journal-article","created":{"date-parts":[[2020,10,3]],"date-time":"2020-10-03T10:56:09Z","timestamp":1601722569000},"page":"245-258","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Rehearsal of tactile working memory: Premotor cortex recruits two dissociable neuronal content representations"],"prefix":"10.1002","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1612-1301","authenticated-orcid":false,"given":"Timo Torsten","family":"Schmidt","sequence":"first","affiliation":[{"name":"Neurocomputation and Neuroimaging Unit (NNU), Department of Education and Psychology Freie Universit\u00e4t Berlin  Berlin Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6135-0691","authenticated-orcid":false,"given":"Pia","family":"Schr\u00f6der","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":"Pablo","family":"Reinhardt","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":[[2020,10,3]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1460-9568.2011.07797.x"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-psych-120710-100422"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0079-7421(08)60452-1"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.2517-6161.1995.tb02031.x"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.1138071"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/nyas.13616"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.3294-17.2018"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2014.11.018"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.0184-12.2012"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tics.2016.12.007"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1093\/acprof:oso\/9780195119107.001.0001"},{"key":"e_1_2_8_13_1","first-page":"323","article-title":"What are the differences between long\u2010term, short\u2010term, and working memory?","volume":"6123","author":"Cowan N.","year":"2009","journal-title":"Progress in Brain Research"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1037\/0096-1523.25.6.1673"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-psych-010814-015031"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhl090"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2006.04.204"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2004.12.034"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2014.10.034"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0504136102"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00422-010-0364-z"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2005.01.013"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.tics.2011.11.014"},{"issue":"3","key":"e_1_2_8_24_1","first-page":"2095","article-title":"The right dorsal premotor mosaic: Organization, functions, and connectivity","volume":"27","author":"Genon S.","year":"2017","journal-title":"Cerebral Cortex"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2017.02.034"},{"key":"e_1_2_8_26_1","volume-title":"The senses considered as perceptual systems","author":"Gibson J. 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