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auditory verbal hallucinations

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https://www.readbyqxmd.com/read/28224285/abnormal-effective-connectivity-in-the-brain-is-involved-in-auditory-verbal-hallucinations-in-schizophrenia
#1
Baojuan Li, Long-Biao Cui, Yi-Bin Xi, Karl J Friston, Fan Guo, Hua-Ning Wang, Lin-Chuan Zhang, Yuan-Han Bai, Qing-Rong Tan, Hong Yin, Hongbing Lu
Information flow among auditory and language processing-related regions implicated in the pathophysiology of auditory verbal hallucinations (AVHs) in schizophrenia (SZ) remains unclear. In this study, we used stochastic dynamic causal modeling (sDCM) to quantify connections among the left dorsolateral prefrontal cortex (inner speech monitoring), auditory cortex (auditory processing), hippocampus (memory retrieval), thalamus (information filtering), and Broca's area (language production) in 17 first-episode drug-naïve SZ patients with AVHs, 15 without AVHs, and 19 healthy controls using resting-state functional magnetic resonance imaging...
February 21, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28203084/use-of-transcranial-direct-current-stimulation-for-the-treatment-of-auditory-hallucinations-of-schizophrenia-a-systematic-review
#2
REVIEW
Pedro H Pondé, Eduardo P de Sena, Joan A Camprodon, Arão Nogueira de Araújo, Mário F Neto, Melany DiBiasi, Abrahão Fontes Baptista, Lidia Mvr Moura, Camila Cosmo
INTRODUCTION: Auditory hallucinations are defined as experiences of auditory perceptions in the absence of a provoking external stimulus. They are the most prevalent symptoms of schizophrenia with high capacity for chronicity and refractoriness during the course of disease. The transcranial direct current stimulation (tDCS) - a safe, portable, and inexpensive neuromodulation technique - has emerged as a promising treatment for the management of auditory hallucinations. OBJECTIVE: The aim of this study is to analyze the level of evidence in the literature available for the use of tDCS as a treatment for auditory hallucinations in schizophrenia...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28187965/impact-of-rtms-on-functional-connectivity-within-the-language-network-in-schizophrenia-patients-with-auditory-hallucinations
#3
F Briend, E Leroux, N Delcroix, A Razafimandimby, O Etard, S Dollfus
This exploratory study investigated the functional connectivity (FC) in the language network in schizophrenia patients (SZ) with auditory verbal hallucinations (AVHs), and the therapeutic efficacy of rTMS on it. Eleven SZ with AVHs and 10 healthy controls (HC) underwent two fMRI sessions using a speech listening paradigm. SZ received 20Hz rTMS following the first fMRI session. Compared to HC, SZ showed a reduced FC in the language network. While AVHs improved after 12days, no changes in FC were observed. This suggests the efficacy of high-frequency rTMS on AVH without any impact for rTMS on FC within the language network...
February 8, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28167329/the-role-of-set-shifting-in-auditory-verbal-hallucinations
#4
Sara Siddi, Donatella Rita Petretto, Caterina Burrai, Rosanna Scanu, Antonella Baita, Pierfranco Trincas, Emanuela Trogu, Liliana Campus, Augusto Contu, Antonio Preti
BACKGROUND: Auditory verbal hallucinations (AVHs) are a cardinal characteristic of psychosis. Recent research on the neuropsychological mechanism of AVHs has focused on source monitoring failure, but a few studies have suggested the involvement of attention, working memory, processing speed, verbal learning, memory, and executive functions. In this study we examined the neuropsychological profile of patients with AVHs, assuming that the mechanism underlying this symptom could be a dysfunction of specific cognitive domains...
January 21, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28141710/the-curse-of-the-dolphins-cognitive-decline-and-psychosis
#5
Randall Phelps, Anne Tsai, Arlene Hagen, Joseph Pinter, Raegan Smith, Martin T Stein
Isela is an 11-year-old Mexican-American girl with mild intellectual disability. During a vacation with her family, she went swimming with dolphins. A few days later, Isela awoke at night with laughing spells; during the day, she was pacing, aggressive, and had a decline in self-care and communication skills. Her parents attributed the symptoms to the dolphins. She was evaluated by a pediatric neurologist. The sleep-deprived electroencephalogram, brain magnetic resonance imaging, lumbar puncture, and thyroid function tests were normal...
February 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28139359/altered-amplitude-of-low-frequency-fluctuations-in-schizophrenia-patients-with-persistent-auditory-verbal-hallucinations
#6
Anna Alonso-Solís, Yolanda Vives-Gilabert, Maria J Portella, Mireia Rabella, Eva M Grasa, Alexandra Roldán, Alejandro Keymer-Gausset, Conrad Molins, Fidel Núñez-Marín, Beatriz Gómez-Ansón, Enric Alvarez, Iluminada Corripio
The aim of this study is to analyze the differences in low frequency fluctuation (LFF) values between schizophrenia patients with and without auditory verbal hallucinations (AVH). Nineteen schizophrenia patients with persistent AVH (HP), fourteen non-hallucinating schizophrenia patients (nHP) and twenty healthy controls (HC) underwent R-fMRI. LFF values were calculated in the slow frequency band (0.01-0.08Hz). By means of group level contrasts, we performed direct voxel-wise group comparisons. Both groups of patients showed decreased amplitude LFF (ALFF) values in the occipital pole and lingual gyrus compared to HC, whereas increased ALFF values were found in the temporal pole and fusifom gyrus...
January 28, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28130005/resting-state-functional-connectivity-in-medication-na%C3%A3-ve-schizophrenia-patients-with-and-without-auditory-verbal-hallucinations-a-preliminary-report
#7
Xiao Chang, Guusje Collin, Yibin Xi, Longbiao Cui, Lianne H Scholtens, Iris E Sommer, Huaning Wang, Hong Yin, René S Kahn, Martijn P van den Heuvel
Auditory verbal hallucinations (AVH) are a cardinal feature of schizophrenia that has been associated with activation in language processing areas, in concert with higher-order cognitive brain networks. It remains to be determined whether, and if so how, the functional dynamics between these brain regions contributes to the emergence of AVH. The current study recruited 36 first-episode medication-naïve schizophrenia patients, including 18 patients with AVH, 18 patients free of AVH and 18 controls matched on age, gender and level of education...
January 24, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28125578/functional-connectivity-anomalies-in-adolescents-with-psychotic-symptoms
#8
Francesco Amico, Erik O'Hanlon, Dominik Kraft, Viola Oertel-Knöchel, Mary Clarke, Ian Kelleher, Niamh Higgins, Helen Coughlan, Daniel Creegan, Mark Heneghan, Emmet Power, Lucy Power, Jessica Ryan, Thomas Frodl, Mary Cannon
BACKGROUND: Previous magnetic resonance imaging (MRI) research suggests that, prior to the onset of psychosis, high risk youths already exhibit brain abnormalities similar to those present in patients with schizophrenia. OBJECTIVES: The goal of the present study was to describe the functional organization of endogenous activation in young adolescents who report auditory verbal hallucinations (AVH) in view of the "distributed network" hypothesis of psychosis. We recruited 20 young people aged 13-16 years who reported AVHs and 20 healthy controls matched for age, gender and handedness from local schools...
2017: PloS One
https://www.readbyqxmd.com/read/28109666/diminished-auditory-sensory-gating-during-active-auditory-verbal-hallucinations
#9
Robert J Thoma, Andrew Meier, Jon Houck, Vincent P Clark, Jeffrey D Lewine, Jessica Turner, Vince Calhoun, Julia Stephen
Auditory sensory gating, assessed in a paired-click paradigm, indicates the extent to which incoming stimuli are filtered, or "gated", in auditory cortex. Gating is typically computed as the ratio of the peak amplitude of the event related potential (ERP) to a second click (S2) divided by the peak amplitude of the ERP to a first click (S1). Higher gating ratios are purportedly indicative of incomplete suppression of S2 and considered to represent sensory processing dysfunction. In schizophrenia, hallucination severity is positively correlated with gating ratios, and it was hypothesized that a failure of sensory control processes early in auditory sensation (gating) may represent a larger system failure within the auditory data stream; resulting in auditory verbal hallucinations (AVH)...
January 18, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28104737/cerebral-blood-flow-alterations-specific-to-auditory-verbal-hallucinations-in-schizophrenia
#10
Chuanjun Zhuo, Jiajia Zhu, Wen Qin, Hongru Qu, Xiaolei Ma, Chunshui Yu
BACKGROUND: Auditory verbal hallucinations (AVHs) have been associated with deficits in auditory and speech-related networks. However, the resting-state cerebral blood flow (CBF) alterations specific to AVHs in schizophrenia remain unknown. AIMS: To explore AVH-related CBF alterations in individuals with schizophrenia. METHOD: In total, 35 individuals with schizophrenia with AVHs, 41 individuals with schizophrenia without AVHs and 50 controls underwent arterial spin labelling magnetic resonance imaging...
January 19, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28049081/suicidality-and-hospitalisation-in-patients-with-borderline-personality-disorder-who-experience-auditory-verbal-hallucinations
#11
C W Slotema, M B A Niemantsverdriet, J D Blom, M van der Gaag, H W Hoek, I E C Sommer
BACKGROUND: In patients with borderline personality disorder (BPD), about 22-50% experience auditory verbal hallucinations (AVH). However, the impact of these hallucinations on suicidal ideation, suicide attempts, crisis-service interventions, and hospital admissions is unknown. METHODS: In a cross-sectional design, data were collected with the Psychotic Symptom Rating Scales (PSYRATS) and the MINI International Neuropsychiatric Interview Plus, as well as from the medical records of a convenience sample of outpatients fulfilling the DSM-IV criteria for BPD...
December 29, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28024236/cerebral-blood-flow-and-its-connectivity-features-of-auditory-verbal-hallucinations-in-schizophrenia-a-perfusion-study
#12
Long-Biao Cui, Gang Chen, Zi-Liang Xu, Lin Liu, Hua-Ning Wang, Li Guo, Wen-Ming Liu, Ting-Ting Liu, Shun Qi, Kang Liu, Wei Qin, Jin-Bo Sun, Yi-Bin Xi, Hong Yin
The goal of the study was to investigate cerebral blood flow (CBF) and its connectivity (an across-subject covariance measure) patterns of schizophrenia (SZ) patients with auditory verbal hallucinations (AVHs). A total of demographically matched 25 SZ patients with AVHs, 25 without AVHs, and 25 healthy controls (HCs) underwent resting state perfusion imaging using a pulsed arterial spin labeling sequence. CBF and its connectivity were analyzed and then CBF topological properties were calculated. AVHs patients exhibited decreased CBF in the bilateral superior and middle frontal gyri and postcentral gyri, and right supplementary motor area compared with SZ patients without AVHs...
February 28, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28010158/abnormalities-of-language-pathways-in-schizophrenia-patients-with-and-without-a-lifetime-history-of-auditory-verbal-hallucinations-a-dti-based-tractography-study
#13
Elise Leroux, Nicolas Delcroix, Sonia Dollfus
OBJECTIVES: Auditory verbal hallucinations (AVHs) are frequently observed in patients with schizophrenia and could be the result of white matter (WM) fibre abnormalities involved in speech production/comprehension and perception. We evaluated WM integrity changes in schizophrenia with (SZ+) and without (SZ-) lifetime AVHs compared to healthy controls, using diffusion tensor imaging-based tractography, with a novel focus on the structural connectivity within both intra- and interhemispheric fasciculi...
December 23, 2016: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/27995063/integrity-of-the-arcuate-fasciculus-in-patients-with-schizophrenia-with-auditory-verbal-hallucinations-a-dti-tractography-study
#14
Marion Psomiades, Clara Fonteneau, Marine Mondino, David Luck, Frederic Haesebaert, Marie-Françoise Suaud-Chagny, Jerome Brunelin
Auditory verbal hallucinations (AVH) of schizophrenia are associated with a disrupted connectivity between frontal and temporoparietal language areas. We hypothesized that this dysconnectivity is underpinned by white matter abnormalities in the left arcuate fasciculus, the main fiber bundle connecting speech production and perception areas. We therefore investigated the relationship between AVH severity and the integrity of the arcuate fasciculus measured by diffusion tensor imaging (DTI) tractography in patients with schizophrenia...
2016: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27987221/active-and-placebo-transcranial-magnetic-stimulation-effects-on-external-and-internal-auditory-hallucinations-of-schizophrenia
#15
M-L Paillère-Martinot, A Galinowski, M Plaze, J Andoh, D Bartrés-Faz, F Bellivier, J-P Lefaucheur, D Rivière, T Gallarda, J-L Martinot, E Artiges
OBJECTIVE: Repetitive transcranial magnetic stimulation (rTMS) over the left temporo-parietal region has been proposed as a treatment for resistant auditory verbal hallucinations (AVH), but which patients are more likely to benefit from rTMS is still unclear. This study sought to assess the effects of rTMS on AVH, with a focus on hallucination phenomenology. METHOD: Twenty-seven patients with schizophrenia and medication-resistant AVH participated to a randomized, double-blind, placebo-controlled, add-on rTMS study...
December 16, 2016: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/27898489/inner-speech-and-clarity-of-self-concept-in-thought-disorder-and-auditory-verbal-hallucinations
#16
Paulo de Sousa, William Sellwood, Amy Spray, Charles Fernyhough, Richard P Bentall
Eighty patients and thirty controls were interviewed using one interview that promoted personal disclosure and another about everyday topics. Speech was scored using the Thought, Language and Communication scale (TLC). All participants completed the Self-Concept Clarity Scale (SCCS) and the Varieties of Inner Speech Questionnaire (VISQ). Patients scored lower than comparisons on the SCCS. Low scores were associated the disorganized dimension of TD. Patients also scored significantly higher on condensed and other people in inner speech, but not on dialogical or evaluative inner speech...
December 2016: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/27890810/interaction-of-language-auditory-and-memory-brain-networks-in-auditory-verbal-hallucinations
#17
REVIEW
Branislava Ćurčić-Blake, Judith M Ford, Daniela Hubl, Natasza D Orlov, Iris E Sommer, Flavie Waters, Paul Allen, Renaud Jardri, Peter W Woodruff, Olivier David, Christoph Mulert, Todd S Woodward, André Aleman
Auditory verbal hallucinations (AVH) occur in psychotic disorders, but also as a symptom of other conditions and even in healthy people. Several current theories on the origin of AVH converge, with neuroimaging studies suggesting that the language, auditory and memory/limbic networks are of particular relevance. However, reconciliation of these theories with experimental evidence is missing. We review 50 studies investigating functional (EEG and fMRI) and anatomic (diffusion tensor imaging) connectivity in these networks, and explore the evidence supporting abnormal connectivity in these networks associated with AVH...
January 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/27866082/auditory-verbal-hallucinations-and-continuum-models-of-psychosis-a-systematic-review-of-the-healthy-voice-hearer-literature
#18
REVIEW
David Baumeister, Ottilie Sedgwick, Oliver Howes, Emmanuelle Peters
Recent decades have seen a surge of research interest in the phenomenon of healthy individuals who experience auditory verbal hallucinations, yet do not exhibit distress or need for care. The aims of the present systematic review are to provide a comprehensive overview of this research and examine how healthy voice-hearers may best be conceptualised in relation to the diagnostic versus 'quasi-' and 'fully-dimensional' continuum models of psychosis. A systematic literature search was conducted, resulting in a total of 398 article titles and abstracts that were scrutinised for appropriateness to the present objective...
February 2017: Clinical Psychology Review
https://www.readbyqxmd.com/read/27829870/the-intrasubjectivity-of-self-voices-and-delusions-a-phenomenological-analysis
#19
Cherise Rosen, Nev Jones, Kayla A Chase, Hannah Gin, Linda S Grossman, Rajiv P Sharma
To advance the area of phenomenology of voices and their interrelatedness to forms of delusions this study investigated the prevalence and interrelatedness of co-occurring auditory verbal hallucinations (AVHs) and delusions. Additionally we explored the characterization of distinct sub-categories/clusters of AVHs and delusions. Ninety-two participants experiencing psychosis were administered standardized clinical measures. We found a significant diagnostic difference with increased prevalence of co-occurring AVHs and delusions within the schizophrenia group compared to the bipolar with psychosis group...
2016: Psychosis
https://www.readbyqxmd.com/read/27815515/stigma-and-need-for-care-in-individuals-who-hear-voices
#20
Ruvanee P Vilhauer
BACKGROUND: Voice hearing experiences, or auditory verbal hallucinations, occur in healthy individuals as well as in individuals who need clinical care, but news media depict voice hearing primarily as a symptom of mental illness, particularly schizophrenia. AIMS: This article explores whether, and how, public perception of an exaggerated association between voice hearing and mental illness might influence individuals' need for clinical care. METHOD: A narrative literature review was conducted, using relevant peer-reviewed research published in the English language...
February 2017: International Journal of Social Psychiatry
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