Editing Schizophrenia (section)

===Positive symptoms===
Positive symptoms are those symptoms that are not normally experienced, but are present in people during a psychotic episode in schizophrenia, including [[delusion]]s, [[hallucination]]s, and disorganized thoughts, speech and behavior or inappropriate affect, typically regarded as manifestations of psychosis.<ref name=RAISE/> Hallucinations occur at some point in the lifetimes of 80% of those with schizophrenia<ref name=Montagnese2021>{{cite journal |vauthors=Montagnese M, Leptourgos P, Fernyhough C, et al |title=A Review of Multimodal Hallucinations: Categorization, Assessment, Theoretical Perspectives, and Clinical Recommendations |journal=Schizophr Bull |volume=47 |issue=1 |pages=237–248 |date=January 2021 |pmid=32772114 |pmc=7825001 |doi=10.1093/schbul/sbaa101 }}</ref> and most commonly involve the sense of [[hearing]] (most often [[auditory verbal hallucinations|hearing voices]]), but can sometimes involve any of the other [[sense]]s such as [[taste]], [[visual perception|sight]], [[Olfaction|smell]], and [[tactile hallucination|touch]].<ref>{{cite journal |vauthors=Császár N, Kapócs G, Bókkon I |s2cid=52813070 |title=A possible key role of vision in the development of schizophrenia |journal=Reviews in the Neurosciences |volume=30 |issue=4 |pages=359–379 |date=27 May 2019 |pmid=30244235 |doi=10.1515/revneuro-2018-0022}}</ref> The frequency of hallucinations involving multiple senses is double the rate of those involving only one sense.<ref name=Montagnese2021/> They are also typically related to the content of the delusional theme.<ref name=DSMIV>{{cite book | author = American Psychiatric Association. Task Force on DSM-IV. | year = 2000 | title = Diagnostic and statistical manual of mental disorders: DSM-IV-TR. | publisher = American Psychiatric Pub. | isbn = 978-0-89042-025-6 | pages = 299–304 }}</ref> [[Delusion]]s are [[Delusion#Types|bizarre]] or [[Persecutory delusions|persecutory]] in nature. [[Self-disorder|Distortions of self-experience]] such as feeling that [[Thought broadcasting|others can hear one's thoughts]] (thought broadcasting delusion) or that [[Thought insertion|thoughts are being inserted into one's mind]], sometimes termed passivity phenomena, are also common.<ref name=Heinz2016>{{cite journal | vauthors = Heinz A, Voss M, Lawrie SM, Mishara A, Bauer M, Gallinat J, Juckel G, Lang U, Rapp M, Falkai P, Strik W, Krystal J, Abi-Dargham A, Galderisi S | title = Shall we really say goodbye to first rank symptoms? | journal = European Psychiatry | volume = 37 | pages = 8–13 | date = September 2016 | pmid = 27429167 | doi = 10.1016/j.eurpsy.2016.04.010 | s2cid = 13761854 }}</ref><ref name=NIH2022/> Positive symptoms generally respond well to medication<ref name=Lancet2016/> and become reduced over the course of the illness, perhaps linked to the age-related decline in dopamine activity.<ref name=DSM5/>