Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.

<h4>Background</h4>This study focused on hypotheses regarding the source of incompleteness in obsessive-compulsive disorder (OCD). For this, we had to document the behavioral manifestation of incompleteness in compulsive rituals, predicting that an exaggerated focus on acts that are appr...

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Autores principales:	Rama Zor, Henry Szechtman, Haggai Hermesh, Naomi A Fineberg, David Eilam
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/97b78fcf952842bf935431482ca6dbe4
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spelling	oai:doaj.org-article:97b78fcf952842bf935431482ca6dbe42021-11-04T06:07:54ZManifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.1932-620310.1371/journal.pone.0025217https://doaj.org/article/97b78fcf952842bf935431482ca6dbe42011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21966460/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>This study focused on hypotheses regarding the source of incompleteness in obsessive-compulsive disorder (OCD). For this, we had to document the behavioral manifestation of incompleteness in compulsive rituals, predicting that an exaggerated focus on acts that are appropriate for the task will support the hypothesis on heightened responsibility/perfectionism. In contrast, activity past the expected terminal act for the motor task would support the "stop signal deficiency" hypothesis.<h4>Methodology and principal findings</h4>We employed video-telemetry to analyze 39 motor OCD rituals and compared each with a similar task performed by a non-OCD individual, in order to objectively and explicitly determine the functional end of the activity. We found that 75% of OCD rituals comprised a "tail," which is a section that follows the functional end of the task that the patients ascribed to their activity. The other 25% tailless rituals comprised a relatively high number and higher rate of repetition of non-functional acts. Thus, in rituals with tail, incompleteness was manifested by the mere presence of the tail whereas in tailless rituals, incompleteness was manifested by the reduced functionality of the task due to an inflated execution and repetition of non-functional acts.<h4>Conclusions</h4>The prevalence of activity after the functional end ("tail") and the elevated non-functionality in OCD motor rituals support the "lack of stop signal" theories as the underlying mechanism in OCD. Furthermore, the presence and content of the tail might have a therapeutic potential in cognitive-behavior therapy.Rama ZorHenry SzechtmanHaggai HermeshNaomi A FinebergDavid EilamPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 9, p e25217 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Rama Zor Henry Szechtman Haggai Hermesh Naomi A Fineberg David Eilam Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
description	<h4>Background</h4>This study focused on hypotheses regarding the source of incompleteness in obsessive-compulsive disorder (OCD). For this, we had to document the behavioral manifestation of incompleteness in compulsive rituals, predicting that an exaggerated focus on acts that are appropriate for the task will support the hypothesis on heightened responsibility/perfectionism. In contrast, activity past the expected terminal act for the motor task would support the "stop signal deficiency" hypothesis.<h4>Methodology and principal findings</h4>We employed video-telemetry to analyze 39 motor OCD rituals and compared each with a similar task performed by a non-OCD individual, in order to objectively and explicitly determine the functional end of the activity. We found that 75% of OCD rituals comprised a "tail," which is a section that follows the functional end of the task that the patients ascribed to their activity. The other 25% tailless rituals comprised a relatively high number and higher rate of repetition of non-functional acts. Thus, in rituals with tail, incompleteness was manifested by the mere presence of the tail whereas in tailless rituals, incompleteness was manifested by the reduced functionality of the task due to an inflated execution and repetition of non-functional acts.<h4>Conclusions</h4>The prevalence of activity after the functional end ("tail") and the elevated non-functionality in OCD motor rituals support the "lack of stop signal" theories as the underlying mechanism in OCD. Furthermore, the presence and content of the tail might have a therapeutic potential in cognitive-behavior therapy.
format	article
author	Rama Zor Henry Szechtman Haggai Hermesh Naomi A Fineberg David Eilam
author_facet	Rama Zor Henry Szechtman Haggai Hermesh Naomi A Fineberg David Eilam
author_sort	Rama Zor
title	Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
title_short	Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
title_full	Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
title_fullStr	Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
title_full_unstemmed	Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.
title_sort	manifestation of incompleteness in obsessive-compulsive disorder (ocd) as reduced functionality and extended activity beyond task completion.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/97b78fcf952842bf935431482ca6dbe4
work_keys_str_mv	AT ramazor manifestationofincompletenessinobsessivecompulsivedisorderocdasreducedfunctionalityandextendedactivitybeyondtaskcompletion AT henryszechtman manifestationofincompletenessinobsessivecompulsivedisorderocdasreducedfunctionalityandextendedactivitybeyondtaskcompletion AT haggaihermesh manifestationofincompletenessinobsessivecompulsivedisorderocdasreducedfunctionalityandextendedactivitybeyondtaskcompletion AT naomiafineberg manifestationofincompletenessinobsessivecompulsivedisorderocdasreducedfunctionalityandextendedactivitybeyondtaskcompletion AT davideilam manifestationofincompletenessinobsessivecompulsivedisorderocdasreducedfunctionalityandextendedactivitybeyondtaskcompletion
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Manifestation of incompleteness in obsessive-compulsive disorder (OCD) as reduced functionality and extended activity beyond task completion.

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