{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T19:00:31Z","timestamp":1790794831100,"version":"4.1.0"},"reference-count":26,"publisher":"Cambridge University Press (CUP)","issue":"6","license":[{"start":{"date-parts":[[2020,7,6]],"date-time":"2020-07-06T00:00:00Z","timestamp":1593993600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Behav. Cogn. Psychother."],"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1352465820000405_as1\"><jats:title>Background:<\/jats:title><jats:p>Delusional infestation is a condition at the interface of tactile and visual hallucinations and delusions. Individuals with this condition hold the fixed and false belief that their body or their environment is infested with parasites, insects or other organisms.<\/jats:p><\/jats:sec><jats:sec id=\"S1352465820000405_as2\"><jats:title>Aims:<\/jats:title><jats:p>There are no guidelines or publications detailing the psychological assessment, formulation, intervention and evaluation of this presentation. This paper aims to address this gap.<\/jats:p><\/jats:sec><jats:sec id=\"S1352465820000405_as3\"><jats:title>Method:<\/jats:title><jats:p>Single case experimental design methodology was employed to evaluate the use of cognitive behavioural therapy (CBT) for delusional infestation in a 70-year-old male who was intolerant of anti-psychotic medication. \u2018Tom\u2019 had a large, mature infarct in the middle cerebral artery territory as well as a left posterior parietal infarct post-stroke, which may have precipitated his symptoms. After a baseline period of 3 weeks, Tom received eight sessions of CBT based on the model by Collerton and Dudley (2004).<\/jats:p><\/jats:sec><jats:sec id=\"S1352465820000405_as4\"><jats:title>Results:<\/jats:title><jats:p>Post-intervention, there was a reliable improvement on clinical measures as well as a large reduction in distress levels, which was maintained at 3-month follow-up. The conviction in the belief that the infestation was real did not shift.<\/jats:p><\/jats:sec><jats:sec id=\"S1352465820000405_as5\"><jats:title>Conclusion:<\/jats:title><jats:p>This case demonstrated the potential for the use of CBT to address distress related to delusional infestation. This work is discussed in relation to post-stroke psychosis, psychological therapies with older adults, and suggestions are made for future research.<\/jats:p><\/jats:sec>","DOI":"10.1017\/s1352465820000405","type":"journal-article","created":{"date-parts":[[2020,7,6]],"date-time":"2020-07-06T08:53:21Z","timestamp":1594025601000},"page":"717-724","source":"Crossref","is-referenced-by-count":6,"title":["Brief cognitive behavioural therapy for post-stroke \u2018delusional infestation\u2019 in a 71-year-old man: a single case experimental design"],"prefix":"10.1017","volume":"48","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6920-2941","authenticated-orcid":false,"given":"Aimee I.","family":"McKinnon","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca","family":"Dow","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2020,7,6]]},"reference":[{"key":"S1352465820000405_ref2","first-page":"345","article-title":"Delusional infestation: the interface of delusions and hallucinations","volume":"18","author":"Baker","year":"1995","journal-title":"Psychiatric Clinics"},{"key":"S1352465820000405_ref18","first-page":"662","article-title":"Disrupting sleep: the effects of sleep loss on psychotic experiences tested in an experimental study with mediation analysis","volume":"44","author":"Reeve","year":"2018","journal-title":"Schizophrenia Bulletin"},{"key":"S1352465820000405_ref24","doi-asserted-by":"publisher","DOI":"10.1016\/j.jad.2018.04.011"},{"key":"S1352465820000405_ref26","doi-asserted-by":"publisher","DOI":"10.1037\/0022-006X.74.1.160"},{"key":"S1352465820000405_ref14","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.180.5.461"},{"key":"S1352465820000405_ref8","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(14)70016-X"},{"key":"S1352465820000405_ref3","doi-asserted-by":"publisher","DOI":"10.1017\/S0033291712002760"},{"key":"S1352465820000405_ref23","doi-asserted-by":"publisher","DOI":"10.1080\/13546805.2010.536084"},{"key":"S1352465820000405_ref22","doi-asserted-by":"publisher","DOI":"10.1159\/000284934"},{"key":"S1352465820000405_ref7","doi-asserted-by":"publisher","DOI":"10.1017\/S135246589927107X"},{"key":"S1352465820000405_ref11","volume-title":"Cognitive Behavioural Therapy with Older People: Interventions for Those With and Without Dementia","author":"James","year":"2010"},{"key":"S1352465820000405_ref21","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp-2017-317327"},{"key":"S1352465820000405_ref9","doi-asserted-by":"publisher","DOI":"10.1176\/appi.ajp.157.2.172"},{"key":"S1352465820000405_ref4","doi-asserted-by":"publisher","DOI":"10.1016\/S0033-3182(00)71168-6"},{"key":"S1352465820000405_ref10","doi-asserted-by":"publisher","DOI":"10.1111\/j.2044-8260.2011.02014.x"},{"key":"S1352465820000405_ref12","doi-asserted-by":"publisher","DOI":"10.1016\/j.cbpra.2015.02.001"},{"key":"S1352465820000405_ref13","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.h1328"},{"key":"S1352465820000405_ref15","doi-asserted-by":"publisher","DOI":"10.1111\/j.1532-5415.2005.53221.x"},{"key":"S1352465820000405_ref16","doi-asserted-by":"publisher","DOI":"10.1080\/17522439.2017.1405063"},{"key":"S1352465820000405_ref6","doi-asserted-by":"publisher","DOI":"10.1080\/713680250"},{"key":"S1352465820000405_ref17","doi-asserted-by":"publisher","DOI":"10.1016\/j.genhosppsych.2009.10.006"},{"key":"S1352465820000405_ref19","doi-asserted-by":"publisher","DOI":"10.1017\/S0141347300011472"},{"key":"S1352465820000405_ref5","doi-asserted-by":"publisher","DOI":"10.1017\/S1352465804001626"},{"key":"S1352465820000405_ref20","doi-asserted-by":"publisher","DOI":"10.2340\/00015555-2423"},{"key":"S1352465820000405_ref25","unstructured":"World Health Organization (2018). 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