Linked Life Data

16533595

Source:http://linkedlifedata.com/resource/pubmed/id/16533595

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
2006-5-22
pubmed:abstractText
When patients with hallucinations and delusions encounter their own distorted speech they tend to mistakenly attribute it to someone else. This external misattribution of self-generated material is thought to be associated with 'positive' psychotic symptoms. The aim of the present study was to examine this process in relation to the predisposition to hallucination-like experiences and unusual beliefs in a healthy population. Fifty-seven volunteers completed assessments of hallucination proneness and delusional ideation and performed a source-monitoring task. Participants listened to a series of pre-recorded words for which the source (self/non-self) and acoustic quality (undistorted/distorted) of the speech were varied across trials. Participants indicated whether the words were spoken in their own or another person's voice via a button press. Misattribution errors were greatest when participants made source judgements about their own distorted speech (p < 0.01) and were positively correlated with delusional ideation scores, particularly the level of conviction with which delusional ideas were held (p = 0.03), and there was a trend for a positive correlation with hallucination proneness scores. There was a negative correlation between unsure responses and delusional ideation when participants were processing their own distorted speech (p = -0.03). The misattribution of self-generated speech occurs in healthy individuals with high levels of psychotic-like experiences. This suggests that the same cognitive impairments may underlie psychotic phenomena in healthy individuals as in patients with psychotic disorders, consistent with a continuum model of psychosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0920-9964
pubmed:author
pubmed:issnType
Print
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
281-8
pubmed:dateRevised
2010-9-2
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Misattribution of self-generated speech in relation to hallucinatory proneness and delusional ideation in healthy volunteers.
pubmed:affiliation
King's College London, Department of Psychological Medicine, Institute of Psychiatry, DeCrespigny Park, London SE5 8AF, United Kingdom. p.allen@iop.kcl.ac.uk
pubmed:publicationType
Journal Article