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We searched PubMed and Web of Science for publications that assessed the effects of handling, maternal separation (MS), and limited bedding and nesting (LBN) on performance in the Morris water maze (MWM), novel object recognition (NOR), and contextual fear conditioning (CFC). Forty-five studies met inclusion criteria (\n                    <jats:italic>n<\/jats:italic>\n                    \u2009=\u2009451\u2013763 rodents per test) and were used to calculate standardized mean differences (Hedge\u2019s\n                    <jats:italic>g<\/jats:italic>\n                    ) and to assess heterogeneity, publication bias, and the moderating effects of sex and species (rats vs. mice). We found significantly lower heterogeneity in LBN compared to handling and MS with no consistent effects of sex or species across the three paradigms. LBN and MS caused similar cognitive deficits in tasks that rely heavily on the dorsal hippocampus, such as MWM and NOR, and were significantly different compared to the improved performance seen in rodents exposed to handling. In the CFC task, which relies more on the ventral hippocampus, all three paradigms showed reduced freezing with moderate effect sizes that were not statistically different. These findings demonstrate the utility of using meta-analysis to quantify outcomes in a large number of inconsistent preclinical studies and highlight the need to further investigate the possibility that handling causes different alterations in the dorsal hippocampus but similar outcomes in the ventral hippocampus when compared to MS and LBN.\n                  <\/jats:p>","DOI":"10.1038\/s41398-021-01352-4","type":"journal-article","created":{"date-parts":[[2021,4,20]],"date-time":"2021-04-20T14:58:39Z","timestamp":1618930719000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":51,"title":["Deficits in hippocampal-dependent memory across different rodent models of early life stress: systematic review and meta-analysis"],"prefix":"10.1038","volume":"11","author":[{"given":"Mariana","family":"Rocha","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Victor","family":"Avila-Quintero","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael H.","family":"Bloch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7028-8869","authenticated-orcid":false,"given":"Arie","family":"Kaffman","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,4,20]]},"reference":[{"key":"1352_CR1","doi-asserted-by":"publisher","first-page":"241","DOI":"10.1111\/jcpp.12507","volume":"57","author":"MH Teicher","year":"2016","unstructured":"Teicher, M. 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