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Dopaminergic pathways
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=== Nigrostriatal pathway === The [[nigrostriatal pathway]] is involved in behaviors relating to movement and motivation. The transmission of dopaminergic neurons to the [[dorsal striatum]] particularly plays a role in reward and motivation while movement is influenced by the transmission of dopaminergic neurons to the substantia nigra.<ref>{{cite journal | vauthors = Balleine BW, Delgado MR, Hikosaka O | title = The role of the dorsal striatum in reward and decision-making | journal = The Journal of Neuroscience | volume = 27 | issue = 31 | pages = 8161β8165 | date = August 2007 | pmid = 17670959 | pmc = 6673072 | doi = 10.1523/JNEUROSCI.1554-07.2007 }}</ref><ref>{{cite journal | vauthors = Mishra A, Singh S, Shukla S | title = Physiological and Functional Basis of Dopamine Receptors and Their Role in Neurogenesis: Possible Implication for Parkinson's disease | journal = Journal of Experimental Neuroscience | volume = 12 | pages = 1179069518779829 | date = 2018 | pmid = 29899667 | pmc = 5985548 | doi = 10.1177/1179069518779829 }}</ref> The nigrostriatal pathway is associated with conditions such as Huntington's disease, Parkinson's disease, ADHD, Schizophrenia, and Tourette's Syndrome. Huntington's disease, Parkinson's disease, and Tourette's Syndrome are conditions affected by motor functioning<ref>{{cite journal | vauthors = Mariani E, Frabetti F, Tarozzi A, Pelleri MC, Pizzetti F, Casadei R | title = Meta-Analysis of Parkinson's Disease Transcriptome Data Using TRAM Software: Whole Substantia Nigra Tissue and Single Dopamine Neuron Differential Gene Expression | journal = PLOS ONE | volume = 11 | issue = 9 | pages = e0161567 | date = 2016-09-09 | pmid = 27611585 | pmc = 5017670 | doi = 10.1371/journal.pone.0161567 | bibcode = 2016PLoSO..1161567M | doi-access = free }}</ref> while schizophrenia and ADHD are affected by reward and motivation functioning. This pathway also regulates associated learning such as classical conditioning and operant conditioning.<ref>{{cite book | vauthors = Carmack SA, Koob GF, Anagnostaras SG |chapter=Learning and Memory in Addiction |date=2017 | doi = 10.1016/b978-0-12-809324-5.21101-2 |title=Learning and Memory: A Comprehensive Reference |pages=523β538 |publisher= Elsevier |isbn=9780128052914 |url=https://escholarship.org/uc/item/9ww1p0g8 }}</ref> [[File:Tuberoinfundibular Pathway.png|thumb|The tuberoinfundibular pathway transmits dopamine the hypothalamus to the pituitary gland.]]
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