{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"institution":[{"name":"bioRxiv"}],"indexed":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T20:51:45Z","timestamp":1768510305319,"version":"3.49.0"},"posted":{"date-parts":[[2024,6,1]]},"group-title":"Neuroscience","reference-count":57,"publisher":"openRxiv","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"accepted":{"date-parts":[[2024,6,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                <jats:sec>\n                  <jats:title>Background<\/jats:title>\n                  <jats:p>Cognitive deficits reflecting impaired executive function are commonly associated with psychiatric disorders, including substance use. Cognitive training is proposed to improve treatment outcomes for these disorders by promoting neuroplasticity within the prefrontal cortex, enhancing executive control, and mitigating cognitive decline due to drug use. Additionally, brain derived neurotrophic factor (BDNF) can facilitate plasticity in the prefrontal cortex and reduce drug-seeking behaviors. We investigated whether working memory training could elevate BDNF levels in the prefrontal cortex and if this training would predict or protect against cocaine or cannabinoid seeking.<\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>Adult male rats were trained to perform a \u2018simple\u2019 or \u2018complex\u2019 version of a delayed- match-to-sample working memory task. Rats then self-administered cocaine or the synthetic cannabinoid WIN55,212-2 and were tested for cued drug-seeking during abstinence. Tissue from the prefrontal cortex and dorsal hippocampus was analyzed for BDNF protein expression.<\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>Training on the working memory task enhanced endogenous BDNF protein levels in the prelimbic prefrontal cortex but not the dorsal hippocampus. Working memory training did not impact self-administration of either drug but predicted the extent of WIN self-administration and cocaine seeking during abstinence.<\/jats:p>\n                <\/jats:sec>\n                <jats:sec>\n                  <jats:title>Conclusions<\/jats:title>\n                  <jats:p>These results suggest that working memory training promotes endogenous BDNF but does not alter drug-seeking or drug-taking behavior. However, individual differences in cognitive performance prior to drug exposure may predict vulnerability to future drug use.<\/jats:p>\n                <\/jats:sec>","DOI":"10.1101\/2024.05.28.596305","type":"posted-content","created":{"date-parts":[[2024,6,1]],"date-time":"2024-06-01T20:00:19Z","timestamp":1717272019000},"source":"Crossref","is-referenced-by-count":0,"title":["Working memory performance predicts, but does not reduce, cocaine- and cannabinoid-seeking in adult male rats"],"prefix":"10.64898","author":[{"given":"Sierra J.","family":"Stringfield","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Erin K.","family":"Kirschmann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mary M.","family":"Torregrossa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"54368","reference":[{"key":"2024060412250575000_2024.05.28.596305v1.1","doi-asserted-by":"publisher","DOI":"10.1016\/j.drugalcdep.2012.03.008"},{"key":"2024060412250575000_2024.05.28.596305v1.2","doi-asserted-by":"publisher","DOI":"10.3389\/fnbeh.2021.627633"},{"key":"2024060412250575000_2024.05.28.596305v1.3","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.5192-13.2014"},{"key":"2024060412250575000_2024.05.28.596305v1.4","first-page":"74","article-title":"In search of predictive endophenotypes in addiction: Insights from preclinical research. 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