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Changes in negative implicit evaluations in patients of hypochondriasis after treatment with cognitive therapy or exposure therapy.

AbstractBACKGROUND AND OBJECTIVES:
Previous studies using modified versions of the Affect Misattribution Procedure (AMP; Payne, Cheng, Govorun, & Stewart, 2005) have revealed that there is an implicit negative evaluation bias of illness-related information in patients with hypochondriasis (HYP), which might be a maintaining feature of HYP. However, there is no evidence on whether this bias might be targeted successfully by effective treatments, such as exposure therapy (ET) or cognitive therapy (CT). This is the first study to examine the change in negative implicit evaluations in a randomized controlled trial, including individual CT and ET, compared to a wait-list control group for HYP.
METHODS:
An AMP with illness, symptom and neutral primes was used in 70 patients with HYP before and after treatment (wait-list respectively).
RESULTS:
There was no significant change in negative implicit affective evaluations in both CT and ET, compared to wait-list. However, comparisons between the two active treatments revealed an interaction effect, that only for CT were the affective reactions on illness-as well as symptom-related prime trials (but not neutral primes) significantly more positive at post-compared to pre-treatment. In CT but not in ET, the reduction of implicit negative evaluation bias regarding symptom-related primes was significantly related to the reduction of self-reported health anxiety.
LIMITATIONS:
The small subsample sizes for CT and ET, in comparison to wait-list, prohibit the detection of smaller effects.
CONCLUSIONS:
Formal cognitive restructuring is necessary for reducing implicit negative evaluation bias in HYP, but the latter is not a prerequisite for reducing health anxiety. Thus, the importance of the negative implicit evaluation bias for the maintenance of HYP remains questionable.
AuthorsFranziska Schreiber, Michael Witthöft, Julia M B Neng, Florian Weck
JournalJournal of behavior therapy and experimental psychiatry (J Behav Ther Exp Psychiatry) Vol. 50 Pg. 139-46 (Mar 2016) ISSN: 1873-7943 [Electronic] Netherlands
PMID26204567 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
CopyrightCopyright © 2015 Elsevier Ltd. All rights reserved.
Topics
  • Adult
  • Cognitive Behavioral Therapy (methods)
  • Female
  • Humans
  • Hypochondriasis (therapy)
  • Implosive Therapy (methods)
  • Male
  • Middle Aged
  • Treatment Outcome

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