Editing Caudate nucleus (section)

===Attention-deficit hyperactivity disorder===

A 2002 study draws a relationship between caudate asymmetry and symptoms related to [[ADHD]]. The authors used MR images to compare the relative volumes of the caudate nuclei (as the caudate is a bilateral structure), and drew a connection between any asymmetries and symptoms of ADHD: "The degree of caudate asymmetry significantly predicted cumulative severity ratings of inattentive behaviors." This correlation is congruent with previous associations of the caudate with attentional functioning.<ref>{{cite journal | vauthors = Schrimsher GW, Billingsley RL, Jackson EF, Moore BD | title = Caudate nucleus volume asymmetry predicts attention-deficit hyperactivity disorder (ADHD) symptomatology in children | journal = Journal of Child Neurology | volume = 17 | issue = 12 | pages = 877–84 | date = December 2002 | pmid = 12593459 | doi = 10.1177/08830738020170122001 | s2cid = 36086945 }}</ref> A more recent 2018 study replicated these findings, and demonstrated that the caudate asymmetries related to ADHD were more pronounced in the dorsal medial regions of the caudate.<ref>{{cite journal | vauthors = Douglas PK, Gutman B, Anderson A, Larios C, Lawrence KE, Narr K, Sengupta B, Cooray G, Douglas DB, Thompson PM, McGough JJ, Bookheimer SY | title = Hemispheric brain asymmetry differences in youths with attention-deficit/hyperactivity disorder | journal = NeuroImage: Clinical | volume = 18 | pages = 744–52 | date = February 2018 | pmid = 29876263 | pmc = 5988460 | doi = 10.1016/j.nicl.2018.02.020 }}</ref>