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Lerosier B, Simon G, Takerkart S, Auzias G, Dollfus S. Sulcal pits of the superior temporal sulcus in schizophrenia patients with auditory verbal hallucinations. AIMS Neurosci 2024; 11:25-38. [PMID: 38617038 PMCID: PMC11007407 DOI: 10.3934/neuroscience.2024002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/16/2024] [Accepted: 01/24/2024] [Indexed: 04/16/2024] Open
Abstract
Auditory verbal hallucinations (AVHs) are among the most common and disabling symptoms of schizophrenia. They involve the superior temporal sulcus (STS), which is associated with language processing; specific STS patterns may reflect vulnerability to auditory hallucinations in schizophrenia. STS sulcal pits are the deepest points of the folds in this region and were investigated here as an anatomical landmark of AVHs. This study included 53 patients diagnosed with schizophrenia and past or present AVHs, as well as 100 healthy control volunteers. All participants underwent a 3-T magnetic resonance imaging T1 brain scan, and sulcal pit differences were compared between the two groups. Compared with controls, patients with AVHs had a significantly different distributions for the number of sulcal pits in the left STS, indicating a less complex morphological pattern. The association of STS sulcal morphology with AVH suggests an early neurodevelopmental process in the pathophysiology of schizophrenia with AVHs.
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Affiliation(s)
| | - Gregory Simon
- Normandie Univ, UNICAEN, ISTS, EA 7466, 14000 Caen, France
| | - Sylvain Takerkart
- Aix Marseille Univ, CNRS, INT, Institut de Neurosciences de la Timone, Marseille, France
| | - Guillaume Auzias
- Aix Marseille Univ, CNRS, INT, Institut de Neurosciences de la Timone, Marseille, France
| | - Sonia Dollfus
- Normandie Univ, UNICAEN, ISTS, EA 7466, 14000 Caen, France
- CHU de Caen, Service de Psychiatrie, 14000 Caen, France
- Normandie Univ, UNICAEN, UFR santé, 14000 Caen, France
- Fédération Hospitalo-Universitaire (FHU-AMP), Normandie Univ, UNICAEN, UFR santé, 14000 Caen, France
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2
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Mak O, Couth S, Plack CJ, Kotz SA, Yao B. Investigating the lateralisation of experimentally induced auditory verbal hallucinations. Front Neurosci 2023; 17:1193402. [PMID: 37483346 PMCID: PMC10359906 DOI: 10.3389/fnins.2023.1193402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 05/16/2023] [Indexed: 07/25/2023] Open
Abstract
Introduction Auditory verbal hallucinations (AVHs), or hearing non-existent voices, are a common symptom in psychosis. Recent research suggests that AVHs are also experienced by neurotypical individuals. Individuals with schizophrenia experiencing AVHs and neurotypicals who are highly prone to hallucinate both produce false positive responses in auditory signal detection. These findings suggest that voice-hearing may lie on a continuum with similar mechanisms underlying AVHs in both populations. Methods The current study used a monaural auditory stimulus in a signal detection task to test to what extent experimentally induced verbal hallucinations are (1) left-lateralised (i.e., more likely to occur when presented to the right ear compared to the left ear due to the left-hemisphere dominance for language processing), and (2) predicted by self-reported hallucination proneness and auditory imagery tendencies. In a conditioning task, fifty neurotypical participants associated a negative word on-screen with the same word being played via headphones through successive simultaneous audio-visual presentations. A signal detection task followed where participants were presented with a target word on-screen and indicated whether they heard the word being played concurrently amongst white noise. Results Results showed that Pavlovian audio-visual conditioning reliably elicited a significant number of false positives (FPs). However, FP rates, perceptual sensitivities, and response biases did not differ between either ear. They were neither predicted by hallucination proneness nor auditory imagery. Discussion The results show that experimentally induced FPs in neurotypicals are not left-lateralised, adding further weight to the argument that lateralisation may not be a defining feature of hallucinations in clinical or non-clinical populations. The findings also support the idea that AVHs may be a continuous phenomenon that varies in severity and frequency across the population. Studying induced AVHs in neurotypicals may help identify the underlying cognitive and neural mechanisms contributing to AVHs in individuals with psychotic disorders.
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Affiliation(s)
- Olivia Mak
- Division of Human Communication, Development & Hearing, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Samuel Couth
- Division of Human Communication, Development & Hearing, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Christopher J. Plack
- Division of Human Communication, Development & Hearing, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
- Department of Psychology, Lancaster University, Lancaster, United Kingdom
| | - Sonja A. Kotz
- Department of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Bo Yao
- Department of Psychology, Lancaster University, Lancaster, United Kingdom
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3
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Corlett PR, Bansal S, Gold JM. Studying Healthy Psychosislike Experiences to Improve Illness Prediction. JAMA Psychiatry 2023; 80:515-517. [PMID: 36884241 PMCID: PMC10848166 DOI: 10.1001/jamapsychiatry.2023.0059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Importance Distinguishing delusions and hallucinations from unusual beliefs and experiences has proven challenging. Observations The advent of neural network and generative modeling approaches to big data offers a challenge and an opportunity; healthy individuals with unusual beliefs and experiences who are not ill may raise false alarms and serve as adversarial examples to such networks. Conclusions and Relevance Explicitly training predictive models with adversarial examples should provide clearer focus on the features most relevant to casehood, which will empower clinical research and ultimately diagnosis and treatment.
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Affiliation(s)
- Philip R. Corlett
- Yale University, Department of Psychiatry, New Haven, CT, 06511
- Wu Tsai Institute, Yale University, New Haven, CT, 06511
| | - Sonia Bansal
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore
| | - James M. Gold
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore
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Sreeraj VS, Shivakumar V, Bhalerao GV, Kalmady SV, Narayanaswamy JC, Venkatasubramanian G. Resting-state functional connectivity correlates of antipsychotic treatment in unmedicated schizophrenia. Asian J Psychiatr 2023; 82:103459. [PMID: 36682158 DOI: 10.1016/j.ajp.2023.103459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/03/2023] [Accepted: 01/07/2023] [Indexed: 01/09/2023]
Abstract
BACKGROUND Antipsychotics may modulate the resting state functional connectivity(rsFC) to improve clinical symptoms in schizophrenia(Sz). Existing literature has potential confounders like past medication effects and evaluating preselected regions/networks. We aimed to evaluate connectivity pattern changes with antipsychotics in unmedicated Sz using Multivariate pattern analysis(MVPA), a data-driven technique for whole-brain connectome analysis. METHODS Forty-seven unmedicated patients with Sz(DSM-IV-TR) underwent clinical evaluation and neuroimaging at baseline and after 3-months of antipsychotic treatment. Resting-state functional MRI was analysed using group-MVPA to derive 5-components. The brain region with significant connectivity pattern changes with antipsychotics was identified, and post-hoc seed-to-voxel analysis was performed to identify connectivity changes and their association with symptom changes. RESULTS Connectome-MVPA analysis revealed the connectivity pattern of a cluster localised to left anterior cingulate and paracingulate gyri (ACC/PCG) (peak coordinates:x = -04,y = +30,z = +26;k = 12;cluster-pFWE=0.002) to differ significantly after antipsychotics. Specifically, its connections with clusters of precuneus/posterior cingulate cortex(PCC) and left inferior temporal gyrus(ITG) correlated with improvement in positive and negative symptoms scores, respectively. CONCLUSION ACC/PCG, a hub of the default mode network, seems to mediate the antipsychotic effects in unmedicated Sz. Evaluating causality models with data from randomised controlled design using the MVPA approach would further enhance our understanding of therapeutic connectomics in Sz.
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Affiliation(s)
- Vanteemar S Sreeraj
- InSTAR Clinic and Translational Psychiatry Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, India.
| | - Venkataram Shivakumar
- InSTAR Clinic and Translational Psychiatry Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, India; Department of Integrative Medicine, National Institute of Mental Health and Neurosciences, Bengaluru, India
| | | | - Sunil V Kalmady
- Alberta Machine Intelligence Institute, Department of Computing Science, University of Alberta, Edmonton, Alberta, Canada; Canadian VIGOUR Centre, University of Alberta, Edmonton, Alberta, Canada
| | | | - Ganesan Venkatasubramanian
- InSTAR Clinic and Translational Psychiatry Lab, Department of Psychiatry, National Institute of Mental Health and Neurosciences, Bengaluru, India
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5
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Marschall TM, Koops S, Brederoo SG, Cabral J, Ćurčić-Blake B, Sommer IEC. Time varying dynamics of hallucinations in clinical and non-clinical voice-hearers. Neuroimage Clin 2023; 37:103351. [PMID: 36805417 PMCID: PMC9969260 DOI: 10.1016/j.nicl.2023.103351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 01/24/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Auditory verbal hallucinations (AVH) are frequently associated with psychotic disorders, yet also occur in non-clinical voice-hearers. AVH in this group are similar to those within clinical voice-hearers in terms of several phenomenological aspects, but non-clinical voice-hearers report to have more control over their AVH and attribute less emotional valence to them. These dissimilarities may stem from differences on the neurobiological level, as it is still under debate whether the mechanisms involved in AVH are the same in clinical and non-clinical voice-hearers. In this study, 21 clinical and 21 non-clinical voice-hearers indicated the onset and offsets of AVH during an fMRI scan. Using a method called leading eigenvector dynamics analysis (LEiDA), we examined time-varying dynamics of functional connectivity involved in AVH with a sub-second temporal resolution. We assessed differences between groups, and between hallucination and rest periods in dwell time, switching frequency, probability of occurrence, and transition probabilities of nine recurrent states of functional connectivity with a permutation ANOVA. Deviations in dwell times, switching frequencies, and switch probabilities in the hallucination period indicated more erratic dynamics during this condition regardless of their clinical status. Post-hoc analyses of the dwell times exhibited the most distinct differences between the rest and hallucination condition for the non-clinical sample, suggesting stronger differences between the two conditions in this group. Overall, these findings suggest that the neurobiological mechanisms involved in AVH are similar in clinical and non-clinical individuals.
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Affiliation(s)
- Theresa M Marschall
- University of Groningen, Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands.
| | - Sanne Koops
- University of Groningen, Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
| | - Sanne G Brederoo
- University of Groningen, Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
| | - Joana Cabral
- Centre for Eudaimonia and Human Flourishing, Linacre College, University of Oxford, Oxford, UK; Life and Health Sciences Research Institute, School of Medicine, University of Minho, Braga, Portugal
| | - Branislava Ćurčić-Blake
- University of Groningen, Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
| | - Iris E C Sommer
- University of Groningen, Department of Psychiatry, University Medical Center Groningen, Groningen, The Netherlands
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6
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Morphology of Anterior Cingulate Cortex and Its Relation to Schizophrenia. J Clin Med 2022; 12:jcm12010033. [PMID: 36614833 PMCID: PMC9821645 DOI: 10.3390/jcm12010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/16/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Cortical folding of the anterior cingulate cortex (ACC), particularly the cingulate (CS) and the paracingulate (PCS) sulci, represents a neurodevelopmental marker. Deviations in in utero development in schizophrenia can be traced using CS and PCS morphometry. In the present study, we measured the length of CS, PCS, and their segments on T1 MRI scans in 93 patients with first- episode schizophrenia and 42 healthy controls. Besides the length, the frequency and the left-right asymmetry of CS/PCS were compared in patients and controls. Distribution of the CS and PCS morphotypes in patients was different from controls. Parcellated sulcal pattern CS3a in the left hemisphere was longer in patients (53.8 ± 25.7 mm vs. 32.7 ± 19.4 mm in controls, p < 0.05), while in CS3c it was reversed—longer in controls (52.5 ± 22.5 mm as opposed to 36.2 ± 12.9 mm, n.s. in patients). Non parcellated PCS in the right hemisphere were longer in patients compared to controls (19.4 ± 10.2 mm vs. 12.1 ± 12.4 mm, p < 0.001). Therefore, concurrent presence of PCS1 and CS1 in the left hemisphere and to some extent in the right hemisphere may be suggestive of a higher probability of schizophrenia.
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7
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Fedeli D, Del Maschio N, Del Mauro G, Defendenti F, Sulpizio S, Abutalebi J. Cingulate cortex morphology impacts on neurofunctional activity and behavioral performance in interference tasks. Sci Rep 2022; 12:13684. [PMID: 35953536 PMCID: PMC9372177 DOI: 10.1038/s41598-022-17557-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 07/27/2022] [Indexed: 12/25/2022] Open
Abstract
Inhibitory control is the capacity to withhold or suppress a thought or action intentionally. The anterior Midcingulate Cortex (aMCC) participates in response inhibition, a proxy measure of inhibitory control. Recent research suggests that response inhibition is modulated by individual variability in the aMCC sulcal morphology. However, no study has investigated if this phenomenon is associated with neurofunctional differences during a task. In this study, 42 participants performed an Attention Network Task and a Numerical Stroop task in an MRI scanner. We investigated differences in brain activity and response inhibition efficiency between individuals with symmetric and asymmetric aMCC sulcal patterns. The results showed that aMCC morphological variability is partly associated with inhibitory control, and revealed greater activation in individuals with symmetric patterns during the Stroop task. Our findings provide novel insights into the functional correlates of the relationship between aMCC morphology and executive abilities.
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Affiliation(s)
- Davide Fedeli
- Neuroradiology Department, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy.,Centre for Neurolinguistics and Psycholinguistics (CNPL), Università Vita-Salute San Raffaele, Via Olgettina, 58, 20132, Milan, Italy
| | - Nicola Del Maschio
- Centre for Neurolinguistics and Psycholinguistics (CNPL), Università Vita-Salute San Raffaele, Via Olgettina, 58, 20132, Milan, Italy
| | - Gianpaolo Del Mauro
- Centre for Neurolinguistics and Psycholinguistics (CNPL), Università Vita-Salute San Raffaele, Via Olgettina, 58, 20132, Milan, Italy
| | - Federica Defendenti
- Centre for Neurolinguistics and Psycholinguistics (CNPL), Università Vita-Salute San Raffaele, Via Olgettina, 58, 20132, Milan, Italy
| | - Simone Sulpizio
- Department of Psychology, University of Milano-Bicocca, Milan, Italy.,Milan Center for Neuroscience (NeuroMi), University of Milano-Bicocca, Milan, Italy
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8
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Shailaja B, Javadekar A, Chaudhury S, Saldanha D. Clinical correlates of regional gray matter volumes in schizophrenia: A structural magnetic resonance imaging study. Ind Psychiatry J 2022; 31:282-292. [PMID: 36419700 PMCID: PMC9678149 DOI: 10.4103/ipj.ipj_104_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/21/2021] [Accepted: 10/12/2021] [Indexed: 03/14/2023] Open
Abstract
OBJECTIVES The objective of this study is to investigate the correlation between the regional gray matter volumes and length of Para Cingulate Sulcus (PCS) with the clinical profile of patients with schizophrenia. MATERIALS AND METHODS In this hospital-based, cross-sectional study, thirty consecutive in-patients diagnosed with schizophrenia and equal number of healthy volunteers matched for age- and sex- were recruited as controls. Detailed clinical assessment and magnetic resonance imaging (MRI) of the brain were carried out within 2 days for controls and within 2 weeks of hospitalization for patients. The Positive and Negative Syndrome Scale and Montreal Cognitive Assessment were applied to schizophrenia patients to assess symptoms and cognitive function, respectively. RESULTS Schizophrenia patients had significant volume deficit in bilateral amygdalae, bilateral superior temporal gyri, anterior cingulate cortex and bilateral hippocampi, along with a highly significant reduction in the length of right PCS. Schizophrenia patients with the duration of untreated psychosis (DUP) of 6-12 months showed a significantly greater volume of the right superior temporal gyrus (STG). First-episode schizophrenia patients had a significant reduction in the length of the left PCS. The volume of bilateral superior temporal gyri in schizophrenia patients showed a significant direct correlation with positive symptoms and an inverse correlation with negative symptoms. CONCLUSION Schizophrenia patients have significant volume deficit in some brain regions. DUP of 6-12 months is associated with significantly greater volume of the right STG. First-episode schizophrenia patients have a significant reduction in the length of the left PCS. In schizophrenia patients, the volume of bilateral superior temporal gyri showed a significant direct correlation with the positive symptoms and an inverse correlation with the negative symptoms.
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Affiliation(s)
- B Shailaja
- Department of Psychiatry, M. S. Ramaiah Medical College, Bengaluru, Karnataka, India
| | - Archana Javadekar
- Department of Psychiatry, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
| | - Suprakash Chaudhury
- Department of Psychiatry, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
| | - Daniel Saldanha
- Department of Psychiatry, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
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9
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Hugdahl K, Craven AR, Johnsen E, Ersland L, Stoyanov D, Kandilarova S, Brunvoll Sandøy L, Kroken RA, Løberg EM, Sommer IEC. Neural Activation in the Ventromedial Prefrontal Cortex Precedes Conscious Experience of Being in or out of a Transient Hallucinatory State. Schizophr Bull 2022; 49:S58-S67. [PMID: 35596662 PMCID: PMC9960028 DOI: 10.1093/schbul/sbac028] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND AND HYPOTHESES Auditory verbal hallucinations (AVHs) is not only a common symptom in schizophrenia but also observed in individuals in the general population. Despite extensive research, AVHs are poorly understood, especially their underlying neuronal architecture. Neuroimaging methods have been used to identify brain areas and networks that are activated during hallucinations. A characteristic feature of AVHs is, however, that they fluctuate over time, with varying frequencies of starts and stops. An unanswered question is, therefore, what neuronal events co-occur with the initiation and inhibition of an AVH episode. STUDY DESIGN We investigated brain activation with fMRI in 66 individuals who experienced multiple AVH-episodes while in the scanner. We extracted time-series fMRI-data and monitored changes second-by-second from 10 s before to 15 s after participants indicated the start and stop of an episode, respectively, by pressing a hand-held response-button. STUDY RESULTS We found a region in the ventromedial prefrontal cortex (VMPFC) which showed a significant increase in activation initiated a few seconds before participants indicated the start of an episode, and a corresponding decrease in activation initiated a few seconds before the end of an episode. CONCLUSIONS The consistent increase and decrease in activation in this area in advance of the consciously experienced presence or absence of the "voice" imply that this region may act as a switch in turning episodes on and off. The activation is unlikely to be confounded by motor responses. The findings could have clinical implications for brain stimulation treatments, like transcranial magnetic stimulation.
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Affiliation(s)
- Kenneth Hugdahl
- To whom correspondence should be addressed; IBMP, University of Bergen, Jonas Lies vei 91, 5009 Bergen, Norway; tel: +47-91181062, e-mail:
| | - Alexander R Craven
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway,Department of Clinical Engineering, Haukeland University Hospital, Bergen, Norway
| | - Erik Johnsen
- Division of Psychiatry, Haukeland University Hospital, Bergen, Norway,NORMENT Center for the Study of Mental Disorders, Haukeland University Hospital, Bergen, Norway,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Lars Ersland
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway,Department of Clinical Engineering, Haukeland University Hospital, Bergen, Norway
| | - Drozdstoy Stoyanov
- Department of Psychiatry and Medical Psychology, and Research Institute, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Sevdalina Kandilarova
- Department of Psychiatry and Medical Psychology, and Research Institute, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Lydia Brunvoll Sandøy
- Department of Biological and Medical Psychology, University of Bergen, Bergen, Norway
| | - Rune A Kroken
- Division of Psychiatry, Haukeland University Hospital, Bergen, Norway,NORMENT Center for the Study of Mental Disorders, Haukeland University Hospital, Bergen, Norway
| | - Else-Marie Løberg
- Division of Psychiatry, Haukeland University Hospital, Bergen, Norway,NORMENT Center for the Study of Mental Disorders, Haukeland University Hospital, Bergen, Norway,Department of Addiction Medicine, Haukeland University Hospital, Bergen, Norway,Department of Clinical Psychology, University of Bergen, Bergen, Norway
| | - Iris E C Sommer
- Rijks Universiteit Groningen (RUG), Department of Biomedical Sciences of Cells and Systems and Department of Psychiatry, University Medical CenterGroningen (UMCG), Netherlands
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10
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Dijkstra N, Kok P, Fleming SM. Perceptual reality monitoring: Neural mechanisms dissociating imagination from reality. Neurosci Biobehav Rev 2022; 135:104557. [PMID: 35122782 DOI: 10.1016/j.neubiorev.2022.104557] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 01/12/2022] [Accepted: 01/30/2022] [Indexed: 01/21/2023]
Abstract
There is increasing evidence that imagination relies on similar neural mechanisms as externally triggered perception. This overlap presents a challenge for perceptual reality monitoring: deciding what is real and what is imagined. Here, we explore how perceptual reality monitoring might be implemented in the brain. We first describe sensory and cognitive factors that could dissociate imagery and perception and conclude that no single factor unambiguously signals whether an experience is internally or externally generated. We suggest that reality monitoring is implemented by higher-level cortical circuits that evaluate first-order sensory and cognitive factors to determine the source of sensory signals. According to this interpretation, perceptual reality monitoring shares core computations with metacognition. This multi-level architecture might explain several types of source confusion as well as dissociations between simply knowing whether something is real and actually experiencing it as real. We discuss avenues for future research to further our understanding of perceptual reality monitoring, an endeavour that has important implications for our understanding of clinical symptoms as well as general cognitive function.
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Affiliation(s)
- Nadine Dijkstra
- Wellcome Centre for Human Neuroimaging, University College London, United Kingdom.
| | - Peter Kok
- Wellcome Centre for Human Neuroimaging, University College London, United Kingdom
| | - Stephen M Fleming
- Wellcome Centre for Human Neuroimaging, University College London, United Kingdom; Max Planck UCL Centre for Computational Psychiatry and Aging Research, University College London, United Kingdom; Department of Experimental Psychology, University College London, United Kingdom
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11
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Moseley P, Alderson-Day B, Common S, Dodgson G, Lee R, Mitrenga K, Moffatt J, Fernyhough C. Continuities and Discontinuities in the Cognitive Mechanisms Associated With Clinical and Nonclinical Auditory Verbal Hallucinations. Clin Psychol Sci 2022; 10:752-766. [PMID: 35846173 PMCID: PMC9280701 DOI: 10.1177/21677026211059802] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 10/01/2021] [Indexed: 11/15/2022]
Abstract
Auditory verbal hallucinations (AVHs) are typically associated with schizophrenia but also occur in individuals without any need for care (nonclinical voice hearers [NCVHs]). Cognitive models of AVHs posit potential biases in source monitoring, top-down processes, or a failure to inhibit intrusive memories. However, research across clinical/nonclinical groups is limited, and the extent to which there may be continuity in cognitive mechanism across groups, as predicted by the psychosis-continuum hypothesis, is unclear. We report two studies in which voice hearers with psychosis ( n = 31) and NCVH participants reporting regular spiritual voices ( n = 26) completed a battery of cognitive tasks. Compared with non-voice-hearing groups ( ns = 33 and 28), voice hearers with psychosis showed atypical performance on signal detection, dichotic listening, and memory-inhibition tasks but intact performance on the source-monitoring task. NCVH participants, however, showed only atypical signal detection, which suggests differences between clinical and nonclinical voice hearers potentially related to attentional control and inhibition. These findings suggest that at the level of cognition, continuum models of hallucinations may need to take into account continuity but also discontinuity between clinical and nonclinical groups.
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Affiliation(s)
- Peter Moseley
- Department of Psychology, Northumbria University
- Peter Moseley, Department of Psychology, Northumbria University
| | | | - Stephanie Common
- Tees, Esk, & Wear Valley National Health Service (NHS) Foundation Trust, West Park Hospital, Darlington, England
| | - Guy Dodgson
- Cumbria, Northumberland, Tyne, & Wear NHS Foundation Trust, St. Nicholas Hospital, Newcastle upon Tyne, England
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12
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Cachia A, Borst G, Jardri R, Raznahan A, Murray GK, Mangin JF, Plaze M. Towards Deciphering the Fetal Foundation of Normal Cognition and Cognitive Symptoms From Sulcation of the Cortex. Front Neuroanat 2021; 15:712862. [PMID: 34650408 PMCID: PMC8505772 DOI: 10.3389/fnana.2021.712862] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 08/31/2021] [Indexed: 01/16/2023] Open
Abstract
Growing evidence supports that prenatal processes play an important role for cognitive ability in normal and clinical conditions. In this context, several neuroimaging studies searched for features in postnatal life that could serve as a proxy for earlier developmental events. A very interesting candidate is the sulcal, or sulco-gyral, patterns, macroscopic features of the cortex anatomy related to the fold topology-e.g., continuous vs. interrupted/broken fold, present vs. absent fold-or their spatial organization. Indeed, as opposed to quantitative features of the cortical sheet (e.g., thickness, surface area or curvature) taking decades to reach the levels measured in adult, the qualitative sulcal patterns are mainly determined before birth and stable across the lifespan. The sulcal patterns therefore offer a window on the fetal constraints on specific brain areas on cognitive abilities and clinical symptoms that manifest later in life. After a global review of the cerebral cortex sulcation, its mechanisms, its ontogenesis along with methodological issues on how to measure the sulcal patterns, we present a selection of studies illustrating that analysis of the sulcal patterns can provide information on prenatal dispositions to cognition (with a focus on cognitive control and academic abilities) and cognitive symptoms (with a focus on schizophrenia and bipolar disorders). Finally, perspectives of sulcal studies are discussed.
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Affiliation(s)
- Arnaud Cachia
- Université de Paris, LaPsyDÉ, CNRS, Paris, France.,Université de Paris, IPNP, INSERM, Paris, France
| | - Grégoire Borst
- Université de Paris, LaPsyDÉ, CNRS, Paris, France.,Institut Universitaire de France, Paris, France
| | - Renaud Jardri
- Univ Lille, INSERM U-1172, CHU Lille, Lille Neuroscience & Cognition Centre, Plasticity & SubjectivitY (PSY) team, Lille, France
| | - Armin Raznahan
- Section on Developmental Neurogenomics, Human Genetics Branch, National Institute of Mental Health, Bethesda, MD, United States
| | - Graham K Murray
- Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom
| | | | - Marion Plaze
- Université de Paris, IPNP, INSERM, Paris, France.,GHU PARIS Psychiatrie & Neurosciences, site Sainte-Anne, Service Hospitalo-Universitaire, Pôle Hospitalo-Universitaire Paris, Paris, France
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13
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Perret M, Lavallé L, Haesebaert F, Suaud-Chagny MF, Brunelin J, Mondino M. Neuroanatomical correlates of reality monitoring in patients with schizophrenia and auditory hallucinations. Eur Psychiatry 2021; 64:e58. [PMID: 34548121 PMCID: PMC8516745 DOI: 10.1192/j.eurpsy.2021.2234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Reality-monitoring process enables to discriminate memories of internally generated information from memories of externally derived information. Studies have reported impaired reality-monitoring abilities in schizophrenia patients with auditory hallucinations (AHs), specifically with an exacerbated externalization bias, as well as alterations in neural activity within frontotemporoparietal areas. In healthy subjects, impaired reality-monitoring abilities have been associated with reduction of the paracingulate sulcus (PCS). The current study aimed to identify neuroanatomical correlates of reality monitoring in patients with schizophrenia. Methods Thirty-five patients with schizophrenia and AHs underwent a reality-monitoring task and a 3D anatomical MRI scan at 1.5 T. PCS lengths were measured separately for each hemisphere, and whole-brain voxel-based morphometry analyses were performed using the Computational Anatomy Toolbox (version 12.6) to evaluate the gray-matter volume (GMV). Partial correlation analyses were used to investigate the relationship between reality-monitoring and neuroanatomical outcomes (PCS length and GMV), with age and intracranial volume as covariates. Results The right PCS length was positively correlated with reality-monitoring accuracy (Spearman’s ρ = 0.431, p = 0.012) and negatively with the externalization bias (Spearman’s ρ = −0.379, p = 0.029). Reality-monitoring accuracy was positively correlated with GMV in the right angular gyrus, whereas externalization bias was negatively correlated with GMV in the left supramarginal gyrus/superior temporal gyrus, in the right lingual gyrus and in the bilateral inferior temporal/fusiform gyri (voxel-level p < 0.001 and cluster-level p < 0.05, FDR-corrected). Conclusions Reduced reality-monitoring abilities were significantly associated with shorter right PCS and reduced GMV in temporal and parietal regions of the reality-monitoring network in schizophrenia patients with AHs.
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Affiliation(s)
- Mélanie Perret
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Layla Lavallé
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Frédéric Haesebaert
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Marie-Françoise Suaud-Chagny
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Jérôme Brunelin
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
| | - Marine Mondino
- INSERM, U1028, CNRS, UMR5292, Lyon Neuroscience Research Center, Psychiatric Disorders: from Resistance to Response Team, LyonF-69000, France.,University Lyon 1, Villeurbanne F-69000, France.,Centre Hospitalier Le Vinatier, Bron, France
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14
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Neural Correlates of Aberrant Salience and Source Monitoring in Schizophrenia and At-Risk Mental States-A Systematic Review of fMRI Studies. J Clin Med 2021; 10:jcm10184126. [PMID: 34575237 PMCID: PMC8468329 DOI: 10.3390/jcm10184126] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/22/2021] [Accepted: 09/07/2021] [Indexed: 01/03/2023] Open
Abstract
Cognitive biases are an important factor contributing to the development and symptom severity of psychosis. Despite the fact that various cognitive biases are contributing to psychosis, they are rarely investigated together. In the current systematic review, we aimed at investigating specific and shared functional neural correlates of two important cognitive biases: aberrant salience and source monitoring. We conducted a systematic search of fMRI studies of said cognitive biases. Eight studies on aberrant salience and eleven studies on source monitoring were included in the review. We critically discussed behavioural and neuroimaging findings concerning cognitive biases. Various brain regions are associated with aberrant salience and source monitoring in individuals with schizophrenia and the risk of psychosis. The ventral striatum and insula contribute to aberrant salience. The medial prefrontal cortex, superior and middle temporal gyrus contribute to source monitoring. The anterior cingulate cortex and hippocampus contribute to both cognitive biases, constituting a neural overlap. Our review indicates that aberrant salience and source monitoring may share neural mechanisms, suggesting their joint role in producing disrupted external attributions of perceptual and cognitive experiences, thus elucidating their role in positive symptoms of psychosis. Account bridging mechanisms of these two biases is discussed. Further studies are warranted.
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15
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Yu H, Ying W, Li G, Lin X, Jiang D, Chen G, Chen S, Sun X, Xu Y, Ye J, Zhuo C. Exploring concomitant neuroimaging and genetic alterations in patients with and patients without auditory verbal hallucinations: A pilot study and mini review. J Int Med Res 2021; 48:300060519884856. [PMID: 32696690 PMCID: PMC7376300 DOI: 10.1177/0300060519884856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objective To explore concomitant neuroimaging and genetic alterations in patients with
schizophrenia with or without auditory verbal hallucinations (AVHs), and to
discuss the use of pattern recognition techniques in the development of an
objective index that may improve diagnostic accuracy and treatment outcomes
for schizophrenia. Methods The pilot study included patients with schizophrenia with AVHs (SCH-AVH
group) and without AVHs (SCH-no AVH group). High throughput sequencing (HTS)
was performed to explore RNA networks. Global functional connectivity
density (gFCD) analysis was performed to assess functional connectivity (FC)
alterations of the default mode network (DMN). Quantitative long noncoding
(lnc) RNA and mRNA expression data were related to peak T values of gFCDs
using Pearson’s correlation coefficient analysis. Results Compared with the SCH-no AVH group (n = 5), patients in the
SCH-AVH group (n = 5) exhibited differences in RNA
expression in RNA networks that were related to AVH severity, and displayed
alterations in FC (reflected by gFCD differences) within the DMN (posterior
cingulate and dorsal-medial prefrontal cortex), and in the right parietal
lobe, left occipital lobe, and left temporal lobe. Peak lncRNA expression
values were significantly related to peak gFCD T values within the DMN. Conclusion Among patients with schizophrenia, there are concomitant FC and genetic
expression alterations associated with AVHs. Data from pattern recognition
studies may inform the development of an objective index aimed at improving
early diagnostic accuracy and treatment planning for patients with
schizophrenia with and without AVHs.
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Affiliation(s)
- Haiping Yu
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Wang Ying
- Psychiatric Neuroimaging-Genetic and Comorbidity Laboratory, Tianjin Mental Health Centre, Tianjin Anding Hospital, Tianjin, China
| | - Gang Li
- Department of Psychiatry, Tianshui Third Hospital, Gansu, China
| | - Xiaodong Lin
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Deguo Jiang
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Guangdong Chen
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Suling Chen
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Xiuhai Sun
- Department of Neurology, Zoucheng People's Hospital, Jining Medical University Affiliated Zoucheng Hospital, Shandong, China
| | - Yong Xu
- Department of Psychiatry, The First Hospital of Shanxi Medical University, Shanxi, China
| | - Jiaen Ye
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China
| | - Chuanjun Zhuo
- Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, Zhejiang, China.,Psychiatric Neuroimaging-Genetic and Comorbidity Laboratory, Tianjin Mental Health Centre, Tianjin Anding Hospital, Tianjin, China.,Department of Psychiatry, Tianjin Fourth Centre Hospital, Tianjin, China.,Department of Psychiatric-Neuro-Imaging-Genetics Laboratory, School of Mental Health of Jining Medical University, Jining, Shandong, China
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16
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Fazekas P. Hallucinations as intensified forms of mind-wandering. Philos Trans R Soc Lond B Biol Sci 2020; 376:20190700. [PMID: 33308066 DOI: 10.1098/rstb.2019.0700] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
This paper argues for a novel way of thinking about hallucinations as intensified forms of mind-wandering. Starting from the observation that hallucinations are associated with hyperactive sensory areas underlying the content of hallucinatory experiences and a confusion with regard to the reality of the source of these experiences, the paper first reviews the different factors that might contribute to the impairment of reality monitoring. The paper then focuses on the sensory characteristics determining the vividness of an experience, reviews their relationship to the sensory hyperactivity observed in hallucinations, and investigates under what circumstances they can drive reality judgements. Finally, based on these considerations, the paper presents its main proposal according to which hallucinations are intensified forms of mind-wandering that are amplified along their sensory characteristics, and sketches a possible model of what factors might determine if an internally and involuntarily generated perceptual representation is experienced as a hallucination or as an instance of mind-wandering. This article is part of the theme issue 'Offline perception: voluntary and spontaneous perceptual experiences without matching external stimulation'.
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Affiliation(s)
- Peter Fazekas
- Centre for Philosophical Psychology, Universiteit Antwerpen, Antwerpen, Belgium.,Cognitive Neuroscience Research Unit, Centre of Functionally Integrative Neuroscience, Aarhus Universitet, Aarhus, Denmark
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17
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Evermann U, Gaser C, Besteher B, Langbein K, Nenadić I. Cortical Gyrification, Psychotic-Like Experiences, and Cognitive Performance in Nonclinical Subjects. Schizophr Bull 2020; 46:1524-1534. [PMID: 32691058 PMCID: PMC7707080 DOI: 10.1093/schbul/sbaa068] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Psychotic-like experiences (PLE) are present in nonclinical populations, yet their association with brain structural variation, especially markers of early neurodevelopment, is poorly understood. We tested the hypothesis that cortical surface gyrification, a putative marker of early brain development, is associated with PLE in healthy subjects. METHODS We analyzed gyrification from 3 Tesla MRI scans (using CAT12 software) and PLE (positive, negative, and depressive symptom dimensions derived from the Community Assessment of Psychic Experiences, CAPE) in 103 healthy participants (49 females, mean age 29.13 ± 9.37 years). A subsample of 63 individuals completed tasks from the Wechsler Adult Intelligence Scale and Controlled Oral Word Association Test. Estimated IQ and a composite neuropsychological score were used to explore mediation pathways via cognition. RESULTS Positive PLE distress was negatively associated with gyrification of the left precuneus. PLE depression dimension showed a negative association with gyrification in the right supramarginal and temporal region. There was no significant mediating effect of cognition on these associations. CONCLUSION Our results support a neurobiological psychosis spectrum, for the first time linking an early developmental imaging marker (rather than volume) to dimensional subclinical psychotic symptoms. While schizophrenia risk, neurodevelopment, and cognitive function might share genetic risk factors, additional mediation analyses did not confirm a mediating effect of cognition on the gyrification-psychopathology correlation.
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Affiliation(s)
- Ulrika Evermann
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany
- Center for Mind, Brain and Behavior (CMBB), Marburg, Germany
| | - Christian Gaser
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
- Department of Neurology, Jena University Hospital, Jena, Germany
| | - Bianca Besteher
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Kerstin Langbein
- Department of Psychiatry and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Igor Nenadić
- Cognitive Neuropsychiatry Lab, Department of Psychiatry and Psychotherapy, Philipps-Universität Marburg, Marburg, Germany
- Center for Mind, Brain and Behavior (CMBB), Marburg, Germany
- Marburg University Hospital – UKGM, Marburg, Germany
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18
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Rollins CPE, Garrison JR, Arribas M, Seyedsalehi A, Li Z, Chan RCK, Yang J, Wang D, Liò P, Yan C, Yi ZH, Cachia A, Upthegrove R, Deakin B, Simons JS, Murray GK, Suckling J. Evidence in cortical folding patterns for prenatal predispositions to hallucinations in schizophrenia. Transl Psychiatry 2020; 10:387. [PMID: 33159044 PMCID: PMC7648757 DOI: 10.1038/s41398-020-01075-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 09/30/2020] [Accepted: 10/22/2020] [Indexed: 12/26/2022] Open
Abstract
All perception is a construction of the brain from sensory input. Our first perceptions begin during gestation, making fetal brain development fundamental to how we experience a diverse world. Hallucinations are percepts without origin in physical reality that occur in health and disease. Despite longstanding research on the brain structures supporting hallucinations and on perinatal contributions to the pathophysiology of schizophrenia, what links these two distinct lines of research remains unclear. Sulcal patterns derived from structural magnetic resonance (MR) images can provide a proxy in adulthood for early brain development. We studied two independent datasets of patients with schizophrenia who underwent clinical assessment and 3T MR imaging from the United Kingdom and Shanghai, China (n = 181 combined) and 63 healthy controls from Shanghai. Participants were stratified into those with (n = 79 UK; n = 22 Shanghai) and without (n = 43 UK; n = 37 Shanghai) hallucinations from the PANSS P3 scores for hallucinatory behaviour. We quantified the length, depth, and asymmetry indices of the paracingulate and superior temporal sulci (PCS, STS), which have previously been associated with hallucinations in schizophrenia, and constructed cortical folding covariance matrices organized by large-scale functional networks. In both ethnic groups, we demonstrated a significantly shorter left PCS in patients with hallucinations compared to those without, and to healthy controls. Reduced PCS length and STS depth corresponded to focal deviations in their geometry and to significantly increased covariance within and between areas of the salience and auditory networks. The discovery of neurodevelopmental alterations contributing to hallucinations establishes testable models for these enigmatic, sometimes highly distressing, perceptions and provides mechanistic insight into the pathological consequences of prenatal origins.
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Affiliation(s)
- Colleen P. E. Rollins
- grid.5335.00000000121885934Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - Jane R. Garrison
- grid.5335.00000000121885934Department of Psychology, University of Cambridge, Cambridge, UK
| | - Maite Arribas
- grid.5335.00000000121885934Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK ,grid.13097.3c0000 0001 2322 6764Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, UK
| | - Aida Seyedsalehi
- grid.13097.3c0000 0001 2322 6764Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, UK ,grid.450563.10000 0004 0412 9303Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK
| | - Zhi Li
- grid.9227.e0000000119573309Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Raymond C. K. Chan
- grid.9227.e0000000119573309Neuropsychology and Applied Cognitive Neuroscience Laboratory, CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Junwei Yang
- grid.5335.00000000121885934Department of Computer Science and Technology, University of Cambridge, Cambridge, UK
| | - Duo Wang
- grid.5335.00000000121885934Department of Computer Science and Technology, University of Cambridge, Cambridge, UK
| | - Pietro Liò
- grid.5335.00000000121885934Department of Computer Science and Technology, University of Cambridge, Cambridge, UK
| | - Chao Yan
- grid.22069.3f0000 0004 0369 6365Key Laboratory of Brain Functional Genomics (MOE & STCSM), School of Psychology and Cognitive Science, East China Normal University, Shanghai, China
| | - Zheng-hui Yi
- grid.16821.3c0000 0004 0368 8293Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Arnaud Cachia
- Université de Paris, LaPsyDÉ, CNRS, F-75005 Paris, France ,Université de Paris, IPNP, INSERM, F-75005 Paris, France
| | - Rachel Upthegrove
- grid.6572.60000 0004 1936 7486Institute for Mental Health, University of Birmingham, Birmingham, UK
| | - Bill Deakin
- grid.5379.80000000121662407Neuroscience and Psychiatry Unit, The University of Manchester, Manchester, UK
| | - Jon S. Simons
- grid.5335.00000000121885934Department of Psychology, University of Cambridge, Cambridge, UK
| | - Graham K. Murray
- grid.5335.00000000121885934Department of Psychiatry, University of Cambridge, Cambridge, UK ,grid.450563.10000 0004 0412 9303Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, UK
| | - John Suckling
- grid.5335.00000000121885934Department of Psychiatry, University of Cambridge, Cambridge, UK
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19
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Montagnese M, Leptourgos P, Fernyhough C, Waters F, Larøi F, Jardri R, McCarthy-Jones S, Thomas N, Dudley R, Taylor JP, Collerton D, Urwyler P. A Review of Multimodal Hallucinations: Categorization, Assessment, Theoretical Perspectives, and Clinical Recommendations. Schizophr Bull 2020; 47:237-248. [PMID: 32772114 PMCID: PMC7825001 DOI: 10.1093/schbul/sbaa101] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Hallucinations can occur in different sensory modalities, both simultaneously and serially in time. They have typically been studied in clinical populations as phenomena occurring in a single sensory modality. Hallucinatory experiences occurring in multiple sensory systems-multimodal hallucinations (MMHs)-are more prevalent than previously thought and may have greater adverse impact than unimodal ones, but they remain relatively underresearched. Here, we review and discuss: (1) the definition and categorization of both serial and simultaneous MMHs, (2) available assessment tools and how they can be improved, and (3) the explanatory power that current hallucination theories have for MMHs. Overall, we suggest that current models need to be updated or developed to account for MMHs and to inform research into the underlying processes of such hallucinatory phenomena. We make recommendations for future research and for clinical practice, including the need for service user involvement and for better assessment tools that can reliably measure MMHs and distinguish them from other related phenomena.
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Affiliation(s)
- Marcella Montagnese
- Neuroimaging Department, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK
| | - Pantelis Leptourgos
- Department of Psychiatry, Connecticut Mental Health Center, Yale University, New Haven, CT
| | | | - Flavie Waters
- School of Psychological Sciences, The University of Western Australia, Perth, Australia
| | - Frank Larøi
- Department of Biological and Medical Psychology, Faculty of Psychology, University of Bergen, Bergen, Norway,Psychology and Neuroscience of Cognition Research Unit, University of Liège, Liège, Belgium,Norwegian Center of Excellence for Mental Disorders Research, University of Oslo, Oslo, Norway
| | - Renaud Jardri
- University of Lille, INSERM U1172, CHU Lille, Centre Lille Neuroscience and Cognition, Lille, France,Laboratoire de Neurosciences Cognitives et Computationnelles, ENS, INSERM U960, PSL Research University, Paris, France
| | | | - Neil Thomas
- Centre for Mental Health, Swinburne University of Technology, Melbourne, Australia,The Alfred Hospital, Melbourne, Australia
| | - Rob Dudley
- Gateshead Early Intervention in Psychosis Service, Northumberland, Tyne and Wear NHS, Newcastle upon Tyne, UK,School of Psychology, Newcastle University, Newcastle upon Tyne, UK
| | - John-Paul Taylor
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Daniel Collerton
- School of Psychology, Newcastle University, Newcastle upon Tyne, UK
| | - Prabitha Urwyler
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK,Gerontechnology and Rehabilitation, ARTORG Center for Biomedical Engineering, University of Bern, Bern, Switzerland,Department of Neurology, University Neurorehabilitation Unit, University Hospital Bern—Inselspital, Bern, Switzerland,To whom correspondence should be addressed; tel: +41 31 632 76 07, fax: +41 31 632 75 76, e-mail:
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20
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Powers AR, van Dyck LI, Garrison JR, Corlett PR. Paracingulate Sulcus Length Is Shorter in Voice-Hearers Regardless of Need for Care. Schizophr Bull 2020; 46:1520-1523. [PMID: 32432706 PMCID: PMC7707078 DOI: 10.1093/schbul/sbaa067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Hallucinations-while often considered an indication of mental illness-are commonly experienced by those without a need for clinical care. These nonclinical voice-hearers offer an opportunity to investigate hallucinations in the absence of confounds inherent to the clinical state. Recent work demonstrates an association between auditory verbal hallucinations (AVH) and structural variability in paracingulate sulcus (PCS) of medial prefrontal cortex in a clinical population. However, before PCS length may be considered a biomarker for clinical hallucination risk, it is necessary to investigate PCS structure in a nonclinical population of voice-hearers with AVH phenomenology similar to those of their clinical counterparts. In the current study, PCS length was measured from T1-weighted structural MRI scans of four groups of participants: (1) voice-hearers with a psychotic disorder (n = 15); (2) voice-hearers without a psychotic disorder (n = 15); (3) nonvoice-hearers with a psychotic disorder (n = 14); and (4) nonvoice-hearers without a psychotic disorder (n = 15). There was a main effect of AVH status-but not psychosis-on right PCS length, with no interaction of AVH and psychosis. Participants with AVH exhibited reduced right PCS length compared to participants without AVH (mean reduction = 8.8 mm, P < 0.05). While past studies have demonstrated decreased PCS length in clinical voice-hearers, ours is the first demonstration that shorter right PCS extends to nonclinical voice-hearers. Our findings support the hypothesis that differences in PCS length are related to the propensity to hear voices and not to illness, consistent with a continuum model of voice-hearing.
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Affiliation(s)
- Albert R Powers
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT,To whom correspondence should be addressed; Albert R. Powers III, The Connecticut Mental Health Center, 34 Park Street, New Haven, CT USA; tel: 203-974-7329, fax: 203-974-7957, e-mail:
| | - Laura I van Dyck
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT
| | - Jane R Garrison
- Department of Psychiatry, University of Cambridge, Cambridge, UK,Department of Psychology, University of Cambridge, Cambridge, UK
| | - Philip R Corlett
- Department of Psychiatry, Yale University School of Medicine, New Haven, CT
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21
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Lin X, Li G, Ji F, Cheng L, Chen G, Zhang W, Su Z, Zhang Z, Wang W, Zhou C, Xu Y, Zhuo C. A typical antipsychotic treatment induced gradually expanding white matter alterations in healthy individuals with persistent auditory verbal hallucinations-an artificially controlled pilot study. Int J Neurosci 2020; 131:536-543. [PMID: 32354294 DOI: 10.1080/00207454.2020.1750387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The aim of this study was to explore the effects of atypical antipsychotics (AaPs) on brain white matter (WM) tracts in healthy individuals with auditory verbal hallucinations (Hi-AVHs). METHODS We analyzed neuroimaging, AVH symptoms, and cognitive assessment data obtained from 39 Hi-AVHs who reported being distressed by persistent AVHs and volunteered to receive AaP treatment. We used tract-based spatial statistics (TBSS) and t tests to explore AaP pharmacotherapy effects on AVH symptoms and brain WM alterations in Hi-AVH subjects. RESULTS TBSS and t tests revealed WM alterations after AaP treatment, relative to pretreatment observations. Although AaPs alleviated AVH symptoms, WM alterations in these subjects expanded over 8 months of AaP treatment, encompassing most major WM tracts by the end of the observation period, including the corpus callosum, arcuate fasciculus, cortico-spinal tracts, anterior commissure, and posterior commissure. CONCLUSIONS The worsening of AaP-associated WM alterations observed in this study suggest that AaPs may not be a good choice for the treatment of Hi-AVHs despite their ability to alleviate AVHs.
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Affiliation(s)
- Xiaodong Lin
- Department of Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Gongying Li
- Department of Psychiatry, Institute of Mental Health, Jining University, Jining, China
| | - Feng Ji
- Department of Psychiatry, Institute of Mental Health, Jining University, Jining, China
| | - Langlang Cheng
- Department of Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Guangdong Chen
- Department of Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Wei Zhang
- Department of Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China
| | - Zhonghua Su
- Department of Psychiatry, Institute of Mental Health, Jining University, Jining, China
| | - Zhenqing Zhang
- China-Canada Collaborated Institute of Biological Psychiatry, Xiamen Xianyue Hospital, Xiamen, China
| | - Wenqiang Wang
- China-Canada Collaborated Institute of Biological Psychiatry, Xiamen Xianyue Hospital, Xiamen, China
| | - Chunhua Zhou
- Department of Pharmacy, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yong Xu
- Department of Psychiatry, MDT Center for Cognitive Impairment and Sleep Disorders, First Hospital/First Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Chuanjun Zhuo
- Department of Psychiatric-Neuroimaging-Genetics Laboratory, Wenzhou Seventh People's Hospital, Wenzhou, China.,Department of Psychiatry, Institute of Mental Health, Jining University, Jining, China.,China-Canada Collaborated Institute of Biological Psychiatry, Xiamen Xianyue Hospital, Xiamen, China.,Department of Psychiatric-Neuroimaging-Genetics and Comorbidity Laboratory (PNGC-lab), Tianjin Mental Health Centre, Mental Health Teaching Hospital of Tianjin Medical University, Tianjin Ading Hospital, China, Tianjin China
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22
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Simons JS, Mitrenga K, Fernyhough C. Towards an interdisciplinary science of the subjective experience of remembering. Curr Opin Behav Sci 2020. [DOI: 10.1016/j.cobeha.2020.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gmeiner A, Gaglia A, Habicher S, Rumpold T, Süßenbacher S, Schrank B, Amering M. Power to the voice hearer - The German version of the voice power differential scale. PLoS One 2020; 15:e0230778. [PMID: 32214352 PMCID: PMC7098598 DOI: 10.1371/journal.pone.0230778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 03/09/2020] [Indexed: 11/18/2022] Open
Abstract
Voice power is an important concept in daily life of voice hearers and in the support and therapy for voice hearers who seek help. Therefore, the ability to examine voice power differentials between a voice and a voice hearer is essential. The present study aimed to collect data on voice power differentials and to further validate the Voice Power Differential Scale (VPD). 105 participants aged ≥ 18 with an ICD10 F2-diagnosis that included hearing voices were included in this study. Internal consistency was good (alpha = 0.792), as well as test-retest-reliability (r = 0.855) and correlations with other constructs were generally as expected. The VPD questionnaire results correlated negatively with the Beliefs About Voices Questionnaire-Revised’s (BAVQ-R) items of Benevolence and Engagement-emotion. It correlated positively with Omnipotence and Resistance-emotion, as well as with Negative Content on the Psychotic Symptoms Rating-Scale (PSYRATS). Unexpectedly, no correlations were found with overall severity and command hallucinations. The Voice Power Differential Scale is an important tool for assessing and formulating a voice hearer’s experience when they seek treatment or support for their verbal auditory hallucinations. The results of this study enrich the on-going discussion about the importance of voice power for voice hearers.
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Affiliation(s)
- A. Gmeiner
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
- * E-mail:
| | - A. Gaglia
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
- Division of Psychology, Bangor University Wales, Bangor, United Kingdom
| | - S. Habicher
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - T. Rumpold
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - S. Süßenbacher
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - B. Schrank
- Department of Adult Psychiatry, Karl Landsteiner University for Health Sciences, University Clinic Tulln, Vienna, Austria
| | - M. Amering
- Division of Social Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
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Duñó R, Oliva JC, Tobeña A, Palao D, Labad J. Religiosity and Psychotic Ideation in Stable Schizophrenia: A Role for Empathic Perspective-Taking. Behav Sci (Basel) 2020; 10:bs10020053. [PMID: 32033456 PMCID: PMC7071488 DOI: 10.3390/bs10020053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/29/2020] [Accepted: 02/03/2020] [Indexed: 01/10/2023] Open
Abstract
The relationship between religiosity and different components of empathy was explored in schizophrenia patients. A total of 81 stable schizophrenia patients and 95 controls from the nearby community completed self-reported questionnaires assessing religiosity and empathy (through the Interpersonal Reactivity Index, IRI). Patients with schizophrenia showed higher religiousness than controls and they presented less perspective-taking and empathic concern but increased personal distress in IRI scores. Regression analyses unveiled an association between religiosity and perspective-taking in schizophrenics after adjusting for age, gender, and psychotic symptoms. In conclusion, religiosity in patients with schizophrenia may be linked to variations in perspective- taking as a component of empathy.
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Affiliation(s)
- Rosó Duñó
- Servei de Salut Mental, Parc Taulí Hospital Universitari, CIBERSAM, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; (D.P.); (J.L.)
- Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
- Correspondence: ; Tel.: +34-93-7231010; Fax: +34-93-7237181
| | - Joan Carles Oliva
- Unitat d’Estadística i Avaluació, Institut d’Investigació i Innovació Parc Taulí, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain;
| | - Adolf Tobeña
- Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
- Institut de Neurociències, Departament de Psiquiatria i Medicina Legal (Facultat de Medicina-Bellaterra Campus), Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Diego Palao
- Servei de Salut Mental, Parc Taulí Hospital Universitari, CIBERSAM, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; (D.P.); (J.L.)
- Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - Javier Labad
- Servei de Salut Mental, Parc Taulí Hospital Universitari, CIBERSAM, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; (D.P.); (J.L.)
- Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
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Fernyhough C. Modality-general and modality-specific processes in hallucinations. Psychol Med 2019; 49:2639-2645. [PMID: 31530334 PMCID: PMC6877466 DOI: 10.1017/s0033291719002496] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 08/12/2019] [Accepted: 08/27/2019] [Indexed: 02/07/2023]
Abstract
There is a growing recognition in psychosis research of the importance of hallucinations in modalities other than the auditory. This has focused attention on cognitive and neural processes that might be shared by, and which might contribute distinctly to, hallucinations in different modalities. In this article, I address some issues around the modality-generality of cognitive and neural processes in hallucinations, including the role of perceptual and reality-monitoring systems, top-down and bottom-up processes in relation to the psychological and neural substrates of hallucinations, and the phenomenon of simultaneous multimodal hallucinations of the same entity. I suggest that a functional systems approach, inspired by some neglected aspects of the writings of A. R. Luria, can help us to understand patterns of hallucinatory experience across modalities and across clinical and non-clinical groups. Understanding the interplay between modality-general and modality-specific processes may bear fruit for improved diagnosis and therapeutic approaches to dealing with distressing hallucinations.
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Waters F, Fernyhough C. Auditory Hallucinations: Does a Continuum of Severity Entail Continuity in Mechanism? Schizophr Bull 2019; 45:717-719. [PMID: 30753702 PMCID: PMC6581142 DOI: 10.1093/schbul/sbz002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Flavie Waters
- School of Psychological Sciences, The University of Western Australia, Perth, Western Australia,Clinical Research Centre, Graylands Hospital, North Metro Health Service Mental Health, Perth, Western Australia,To whom correspondence should be addressed; Clinical Research Centre, Graylands Hospital, North Metro Health Service Mental Health, Brockway Road, Claremont, 6009 Perth, Western Australia; tel: +61-8-9341-3685; fax: +61-9384-5128, e-mail:
| | - Charles Fernyhough
- Hearing the Voice, c/o School of Education, Durham University, Durham, UK,Department of Psychology, Durham University, Durham, UK
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