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Auditory 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/28202296/psychosis-in-the-ed-a-case-of-nmda-receptor-antibody-encephalitis
#3
Joseph Fisher, Clifford Ellingson, Noah Tolby
Anti-N-methyl-d-aspartate antibody receptor (NMDAR) encephalitis is a newly recognized disease increasing in diagnostic frequency. A 27-year-old female presented with symptoms of oral dyskinesia, tachycardia, and altered mental status following a three-month history of depression, lethargy, catatonia, and auditory hallucinations. We utilized our facilities neurology and psychiatry consult services, performed a lumbar puncture (LP), and requested NMDAR antibody titers. Following admission the Anti-NMDAR antibody titer was elevated warranting treatment with intravenous immunoglobulin (IVIG), corticosteroids, and later rituximab...
February 6, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28187965/impact-of-rtms-on-functional-connectivity-within-the-language-network-in-schizophrenia-patients-with-auditory-hallucinations
#4
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/28182102/a-case-report-of-nonvasculitic-autoimmune-inflammatory-meningoencephalitis-with-sensory-ganglionopathy-a-rare-presentation-of-sj%C3%A3-gren-syndrome
#5
João Peres, Simão Cruz, Rita Oliveira, Luís Santos, Ana Valverde
A 68-year-old Caucasian female was admitted to the emergency department with a progressive history of behavioural symptoms and anxiety followed by visual and auditory hallucinations, forgetfulness, and impaired gait in the previous 3 months. On examination she was psychotic and had a postural and rest tremor of the upper limbs, cogwheel rigidity of the four limbs, retropulsion on standing position, and inability to walk. During the following 2 weeks she developed xerostomia and unilateral parotiditis that improved with steroids...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28177507/autonomic-regulation-and-auditory-hallucinations-in-individuals-with-schizophrenia-an-experience-sampling-study
#6
David Kimhy, Melanie M Wall, Marie C Hansen, Julia Vakhrusheva, C Jean Choi, Philippe Delespaul, Nicholas Tarrier, Richard P Sloan, Dolores Malaspina
No abstract text is available yet for this article.
February 8, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28167329/the-role-of-set-shifting-in-auditory-verbal-hallucinations
#7
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/28163856/29-year-old-man-with-multiple-sclerosis-and-schizophrenia-a-case-report
#8
Nahid Noorani, Fateme Hadi, Hamid Reza Ahmadkhaniha
Multiple sclerosis (MS) is the most common debilitating neurological disease that affects adults, whether young adults or middle-aged. Although, most attention is toward the neurological signs of the disease, the neuropsychiatric signs are not uncommon. This case report presents a 29 year old male with a record of obsessive-compulsive disorder (OCD) without psychotic disorder, which coincides with the diagnosis MS, has been stricken to auditory hallucinations and reference delusion. The patient received some antipsychotic drugs such as Haloperidol and Perphenazine irregularly, but any psychotic signs of the patient were never in control...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28161599/uncharted-features-and-dynamics-of-reading-voices-characters-and-crossing-of-experiences
#9
Ben Alderson-Day, Marco Bernini, Charles Fernyhough
Readers often describe vivid experiences of voices and characters in a manner that has been likened to hallucination. Little is known, however, of how common such experiences are, nor the individual differences they may reflect. Here we present the results of a 2014 survey conducted in collaboration with a national UK newspaper and an international book festival. Participants (n=1566) completed measures of reading imagery, inner speech, and hallucination-proneness, including 413 participants who provided detailed free-text descriptions of their reading experiences...
February 2, 2017: Consciousness and Cognition
https://www.readbyqxmd.com/read/28142106/on-the-interconnectedness-and-prognostic-value-of-visual-and-auditory-hallucinations-in-first-episode-psychosis
#10
M L Clark, F Waters, T M Vatskalis, A Jablensky
BACKGROUND: Visual hallucinations (VH) are common symptoms in schizophrenia and other psychoses. An understanding of their cross-sectional and longitudinal patterns of association with auditory hallucinations (AH) is essential for developing accurate models of hallucinatory phenomena. OBJECTIVE: This study presents the most comprehensive examination of the association between VH and AH, and its change over time, in 1303 individuals with first-episode psychosis (FEP) and 469 individuals with chronic schizophrenia...
January 27, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28141710/the-curse-of-the-dolphins-cognitive-decline-and-psychosis
#11
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
#12
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/28132699/substance-use-and-sociodemographic-background-as-risk-factors-for-lifetime-psychotic-experiences-in-a-non-clinical-sample
#13
Eline Borger Rognli, Jørgen G Bramness, Svetlana Skurtveit, Anne Bukten
INTRODUCTION: Psychotic experiences (PE) are relatively common in the general population. PE is associated with mental health impairment and may be predictive of clinical psychosis. Substance use predicts PE, but the association is insufficiently understood, particularly the role of illicit substances. The purpose of this study was to describe PE (visual and auditory hallucinations and delusions of reference and persecution) in a population characterized by high levels of substance use and to investigate substance use and sociodemographic background characteristics as risk factors for PE...
March 2017: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28131010/electrophysiological-basis-of-reading-related-phonological-impairment-in-chinese-speakers-with-schizophrenia-an-erp-study
#14
Jiuju Wang, Qi Liu, Taeko N Wydell, Jinmin Liao, Fang Wang, Wenxiang Quan, Ju Tian, Pengfei Wang, Jin Liu, Wentian Dong
It has been reported in alphabetic languages that individuals with schizophrenia showed language-related cognitive impairments including phonological deficits, which were in turn associated with clinical symptoms such as auditory hallucinations and thought disorders. To date, however, the phonological deficits involved in schizophrenia in Chinese and its neural basis have not been well established. In order to establish such a relationship we conducted a behavioral study using lexical tone judgment and digit span tasks as well as an event-related potential (ERP) study with an auditory oddball paradigm, in particular, for P300 effects, the event-related brain potential (ERP) index of discrimination...
January 11, 2017: Psychiatry 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
#15
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
#16
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/28116236/the-neural-correlates-and-clinical-characteristics-of-psychosis-in-the-frontotemporal-dementia-continuum-and-the-c9orf72-expansion
#17
Emma M Devenney, Ramon Landin-Romero, Muireann Irish, Michael Hornberger, Eneida Mioshi, Glenda M Halliday, Matthew C Kiernan, John R Hodges
OBJECTIVE: This present study aims to address the gap in the literature regarding the severity and underlying neural correlates of psychotic symptoms in frontotemporal dementia with and without the C9orf72 gene expansion. METHODS: Fifty-six patients with behavioural variant frontotemporal dementia (20 with concomitant amyotrophic lateral sclerosis) and 23 healthy controls underwent neuropsychological assessments, detailed clinical interview for assessment of psychosis symptoms, brain MRI and genetic testing...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28109666/diminished-auditory-sensory-gating-during-active-auditory-verbal-hallucinations
#18
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
#19
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/28056884/secondary-psychotic-features-in-refugees-diagnosed-with-post-traumatic-stress-disorder-a-retrospective-cohort-study
#20
Mette Nygaard, Charlotte Sonne, Jessica Carlsson
BACKGROUND: A substantial amount of refugees (10-30%) suffer from Post-Traumatic Stress Disorder (PTSD). In Denmark there are different facilities specialised in psychiatric treatment of trauma-affected refugees. A previously published case report from such a facility in Denmark shows that some patients suffer from secondary psychotic symptoms alongside their PTSD. The aim of this study was to illustrate the characteristics and estimate the prevalence of psychotic features in a clinical population of trauma-affected refugees with PTSD...
January 5, 2017: BMC Psychiatry
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