On “Hearing” Voices and “Seeing” Things: Probing Hallucination Predisposition in a Portuguese Nonclinical Sample with the Launay-Slade Hallucination Scale-Revised

Castiajo, Paula; Pinheiro, Ana P.

doi:10.3389/fpsyg.2017.01138

Cited by 21 publications

(25 citation statements)

References 88 publications

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“…In this study, the distribution of HLEs in the samples was multidimensional, with a four‐factor model showing the best fit. The multifactorial structure of the LSHS has been reported before with various versions of the scale (Aleman et al, ; Castiajo & Pinheiro, ; Fonseca‐Pedrero et al, ; Larøi et al, ; Larøi & Van Der Linden, ; Paulik et al, ; Serper et al, ; Vellante et al, ). However, structures often differed depending on the version of the LSHS that was used in the study.…”

Section: Discussionmentioning

confidence: 65%

Measurement invariance of the Spanish Launay–Slade Hallucinations Scale‐Extended version between putatively healthy controls and people diagnosed with a mental disorder

Siddi

Ochoa

Farreny

et al. 2018

Int J Methods Psych Res

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Objectives The current study aimed at evaluating the reliability, convergent and divergent validity, and factor structure of the Spanish Launay–Slade Hallucinations Scale‐Extended version (LSHS‐E) in people with mental disorders and healthy controls. Methods Four hundred and twenty‐two individuals completed the Spanish LSHS‐E and the Spanish Community Assessment of Psychic Experiences. The convergent and divergent validity of the LSHS‐E was assessed with the three dimensions of the Community Assessment of Psychic Experiences (positive, negative, and depressive dimensions) in healthy controls and people with a mental disorder. Factor structure of the LSHS‐E was assessed using confirmatory factor analysis and measurement invariance. Results The LSHS‐E had a good reliability in healthy controls and people with a mental disorder (Cronbach's = 0.83 and 0.91, respectively). The LSHS‐E was more strongly associated with positive psychotic‐like experiences than with depressive and negative symptoms. Four factors were found: (a) “intrusive thoughts”; (b) “vivid daydreams”; (c) “multisensory hallucination‐like experiences”; and (d) “auditory–visual hallucination‐like experiences” that were invariant between the group of healthy controls and people with a mental disorder. Conclusion The Spanish version of the LSHS‐E possesses adequate psychometric properties, and the confirmatory factor analysis findings provide further support for the multidimensionality of proneness to hallucination in clinical and nonclinical samples.

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Section: Discussionmentioning

confidence: 65%

Measurement invariance of the Spanish Launay–Slade Hallucinations Scale‐Extended version between putatively healthy controls and people diagnosed with a mental disorder

Siddi

Ochoa

Farreny

et al. 2018

Int J Methods Psych Res

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show abstract

“…Other studies have confirmed the multidimensionality of this scale in various versions. 6,9,16,18–22 However, structures often differed depending on the version of the LSHS used in each study. This study replicated the 4-factor structure of the LSHS-E as reported by previous studies,13,20,21 providing some consistency for 4-factors of the propensity to experience HLEs in the general population.…”

Section: Discussionmentioning

confidence: 99%

A Cross-National Investigation of Hallucination-Like Experiences in 10 Countries: The E-CLECTIC Study

Siddi

Ochoa

Larøi

et al. 2019

Schizophrenia Bulletin

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Hallucination-like experiences (HLEs) are typically defined as sensory perceptions in the absence of external stimuli. Multidimensional tools, able to assess different facets of HLEs, are helpful for a better characterization of hallucination proneness and to investigate the cross-national variation in the frequencies of HLEs. The current study set out to establish the validity, factor structure, and measurement invariance of the Launay-Slade Hallucinations Scale-Extended (LSHS-E), a tool to assess HLEs. A total of 4419 respondents from 10 countries were enrolled. Network analyses between the LSHS-E and the 3 dimensions of the Community Assessment of Psychic Experiences (CAPE) were performed to assess convergent and divergent validity of the LSHS-E. Confirmatory factor analysis was used to test its measurement invariance. The best fit was a 4-factor model, which proved invariant by country and clinical status, indicating cross-national stability of the hallucination-proneness construct. Among the different components of hallucination-proneness, auditory-visual HLEs had the strongest association with the positive dimension of the CAPE, compared with the depression and negative dimensions. Participants who reported a diagnosis of a mental disorder scored higher on the 4 LSHS-E factors. Small effect size differences by country were found in the scores of the 4 LSHS-E factors even after taking into account the role of socio-demographic and clinical variables. Due to its good psychometric properties, the LSHS-E is a strong candidate tool for large investigations of HLEs.

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“…The study involved two stages. In stage 1, a large sample of college students from different Universities in Portugal ( N = 354) was recruited to complete an on-line version of the 16-items Launay-Slade Hallucination Scale (LSHS) 42 . The total score ranges between 0 and 64, with higher scores indicating higher hallucination predisposition.…”

Section: Methodsmentioning

confidence: 99%

Voice-selective prediction alterations in nonclinical voice hearers

Pinheiro

Schwartze

Kotz

2018

Sci Rep

Self Cite

102

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Auditory verbal hallucinations (AVH) are a cardinal symptom of psychosis but also occur in 6–13% of the general population. Voice perception is thought to engage an internal forward model that generates predictions, preparing the auditory cortex for upcoming sensory feedback. Impaired processing of sensory feedback in vocalization seems to underlie the experience of AVH in psychosis, but whether this is the case in nonclinical voice hearers remains unclear. The current study used electroencephalography (EEG) to investigate whether and how hallucination predisposition (HP) modulates the internal forward model in response to self-initiated tones and self-voices. Participants varying in HP (based on the Launay-Slade Hallucination Scale) listened to self-generated and externally generated tones or self-voices. HP did not affect responses to self vs. externally generated tones. However, HP altered the processing of the self-generated voice: increased HP was associated with increased pre-stimulus alpha power and increased N1 response to the self-generated voice. HP did not affect the P2 response to voices. These findings confirm that both prediction and comparison of predicted and perceived feedback to a self-generated voice are altered in individuals with AVH predisposition. Specific alterations in the processing of self-generated vocalizations may establish a core feature of the psychosis continuum.

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On “Hearing” Voices and “Seeing” Things: Probing Hallucination Predisposition in a Portuguese Nonclinical Sample with the Launay-Slade Hallucination Scale-Revised

Cited by 21 publications

References 88 publications

Measurement invariance of the Spanish Launay–Slade Hallucinations Scale‐Extended version between putatively healthy controls and people diagnosed with a mental disorder

Measurement invariance of the Spanish Launay–Slade Hallucinations Scale‐Extended version between putatively healthy controls and people diagnosed with a mental disorder

A Cross-National Investigation of Hallucination-Like Experiences in 10 Countries: The E-CLECTIC Study

Voice-selective prediction alterations in nonclinical voice hearers

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