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Given the high concentration of dopamine receptors in the striatum, striatal dopamine imbalance is a likely cause in cortico\u2010striatal dysconnectivity. There is great interest in understanding the relationship between striatal abnormalities in psychosis and antipsychotic treatment response, but few studies have considered differential involvement of the caudate and putamen. This study's goals were twofold. First, identify patterns of dorsal striatal dysconnectivity for the caudate and putamen separately in patients with a psychosis spectrum disorder; second, determine if these dysconnectivity patterns were predictive of treatment response.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Using resting state functional connectivity, we evaluated dorsal striatal connectivity using separate bilateral caudate and putamen seed regions in two cohorts of subjects: a cohort of 71 medication\u2010na\u00efve first episode psychosis patients and a cohort of 42 unmedicated patients with schizophrenia (along with matched controls). Patient and control connectivity maps were contrasted for each cohort. After receiving 6 weeks of risperidone treatment, patients\u2019 clinical response was calculated. We used regression analyses to determine the relationship between baseline dysconnectivity and treatment response.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>This dysconnectivity was also predictive of treatment response in both cohorts.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>These findings suggest that the caudate may be more of a driving factor than the putamen in early cortico\u2010striatal dysconnectivity.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/brb3.2625","type":"journal-article","created":{"date-parts":[[2022,10,14]],"date-time":"2022-10-14T01:45:07Z","timestamp":1665711907000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Dorsal striatal hypoconnectivity predicts antipsychotic medication treatment response in first\u2010episode psychosis and unmedicated patients with schizophrenia"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4084-8570","authenticated-orcid":false,"given":"Eric A.","family":"Nelson","sequence":"first","affiliation":[{"name":"Department of Psychiatry and Behavioral Neurobiology University of Alabama at Birmingham  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nina V.","family":"Kraguljac","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Neurobiology University of Alabama at Birmingham  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jose O.","family":"Maximo","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Neurobiology University of Alabama at Birmingham  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William","family":"Armstrong","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Neurobiology University of Alabama at Birmingham  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5565-7662","authenticated-orcid":false,"given":"Adrienne C.","family":"Lahti","sequence":"additional","affiliation":[{"name":"Department of Psychiatry and Behavioral Neurobiology University of Alabama at Birmingham  Birmingham Alabama USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,10,13]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1177\/1073858403252674"},{"key":"e_1_2_9_3_1","article-title":"Movement disorders after stroke in adults: A review","volume":"2","author":"Bansil S.","year":"2012","journal-title":"Tremor and Other Hyperkinetic Movements (N Y)"},{"key":"e_1_2_9_4_1","first-page":"18","article-title":"Identifying basal ganglia divisions in individuals using resting\u2010state functional connectivity MRI","volume":"4","author":"Barnes K. 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