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Auditory hallucination AND memory

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https://www.readbyqxmd.com/read/29703662/dysregulation-of-auditory-neuroplasticity-in-schizophrenia
#1
Patrice Voss, Maryse E Thomas, Gerson D Guercio, Etienne de Villers-Sidani
Schizophrenia is a complex brain syndrome characterized by an array of positive symptoms (delusions, hallucinations, disorganized speech), negative symptoms (alogia, apathy, avolition) and cognitive impairments (memory, executive functions). Although investigations of the cognitive deficits in schizophrenia have primarily concentrated on disturbances affecting higher-order cognitive processes, there is an increasing realization that schizophrenia also affects early sensory processing, which might, in fact, play a significant role in the development of higher-order cognitive impairments...
April 24, 2018: Schizophrenia Research
https://www.readbyqxmd.com/read/29623839/identifying-patterns-in-signs-and-symptoms-preceding-the-clinical-diagnosis-of-alzheimer-s-disease-retrospective-medical-record-review-study-and-a-nested-case-control-design
#2
Fidelia Bature, Dong Pang, Anthea Robinson, Norma Polson, Yannis Pappas, Barbara Guinn
OBJECTIVE: Evidence suggests that individuals with Alzheimer's disease (AD) are often diagnosed in the later stages of their disease with a poor prognosis. This study aimed to identify patterns in signs and symptoms preceding the clinical diagnosis of AD to suggest a predictive model for earlier diagnosis of the disease in the primary care. DESIGN: A retrospective medical record review; nested case control design. PARTICIPANTS: Participants included one hundred and nine patients from three general practice (GP) surgeries in Milton Keynes and Luton Clinical Commissioning groups (CCG) (37 cases with AD and 72 controls without AD)...
April 4, 2018: Current Alzheimer Research
https://www.readbyqxmd.com/read/29581420/aberrant-salience-network-functional-connectivity-in-auditory-verbal-hallucinations-a-first-episode-psychosis-sample
#3
Pavan Kumar Mallikarjun, Paris Alexandros Lalousis, Thomas Frederick Dunne, Kareen Heinze, Renate Lep Reniers, Matthew R Broome, Baldeep Farmah, Femi Oyebode, Stephen J Wood, Rachel Upthegrove
Auditory verbal hallucinations (AVH) often lead to distress and functional disability, and are frequently associated with psychotic illness. Previously both state and trait magnetic resonance imaging (MRI) studies of AVH have identified activity in brain regions involving auditory processing, language, memory and areas of default mode network (DMN) and salience network (SN). Current evidence is clouded by research mainly in participants on long-term medication, with chronic illness and by choice of seed regions made 'a priori'...
March 27, 2018: Translational Psychiatry
https://www.readbyqxmd.com/read/29569473/neurofeedback-based-enhancement-of-single-trial-auditory-evoked-potentials-treatment-of-auditory-verbal-hallucinations-in-schizophrenia
#4
Kathryn Rieger, Marie-Helene Rarra, Laura Diaz Hernandez, Daniela Hubl, Thomas Koenig
Auditory verbal hallucinations depend on a broad neurobiological network ranging from the auditory system to language as well as memory-related processes. As part of this, the auditory N100 event-related potential (ERP) component is attenuated in patients with schizophrenia, with stronger attenuation occurring during auditory verbal hallucinations. Changes in the N100 component assumingly reflect disturbed responsiveness of the auditory system toward external stimuli in schizophrenia. With this premise, we investigated the therapeutic utility of neurofeedback training to modulate the auditory-evoked N100 component in patients with schizophrenia and associated auditory verbal hallucinations...
March 1, 2018: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29395749/reduced-white-matter-connectivity-associated-with-auditory-verbal-hallucinations-in-first-episode-and-chronic-schizophrenia-a-diffusion-tensor-imaging-study
#5
Xiaoling Zhang, Jie Gao, Feng Zhu, Wei Wang, Yajuan Fan, Qingyan Ma, Xiancang Ma, Jian Yang
This study aims to explore whether auditory verbal hallucinations (AVH) in schizophrenia are associated with the white matter abnormalities in tracts connecting language, auditory and memory/limbic networks in first-episode and chronic schizophrenia patients. 21 first-episode (FE-AVH) and 12 chronic (chronic-AVH group) patients who suffered from auditory verbal hallucinations and 26 healthy controls (HC group) were enrolled. Diffusion tensor imaging with tract-based spatial statistics was performed to assess the white matter changes between the two patient groups and HC group...
March 30, 2018: Psychiatry research. Neuroimaging
https://www.readbyqxmd.com/read/29356010/a-life-in-academia-my-career-in-brief
#6
Kenneth Hugdahl
In this article I have summarized some of the main trends and topics of my research career, spanning a time period of 50 years, from its start as a master student at the Department of Psychology, University of Uppsala, Sweden to seeing the end of a long career, now at the University of Bergen, Norway. This journey has, apart from having been a journey across various disciplines and topics in experimental psychology, psychophysiology and neuropsychology, functional neuroimaging and cognitive neuroscience, also been a social class journey for me personally...
February 2018: Scandinavian Journal of Psychology
https://www.readbyqxmd.com/read/29089190/speech-illusions-and-working-memory-performance-in-non-clinical-psychosis
#7
Tina Gupta, Jordan E DeVylder, Randy P Auerbach, Jason Schiffman, Vijay A Mittal
Psychotic disorders are characterized by auditory verbal hallucinations (AVHs), and research has shown that AVHs are linked to deficits in working memory. Our understanding of AVHs across the psychosis continuum is limited. To date, little research has tested whether hallucination proneness (HP) is linked with abnormalities on experimental multispeaker babble tasks. Few investigations have been conducted to determine how task performance might be linked to cognitive functioning. The objective of the current study is to better understand this empirical gap...
October 28, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28864916/effects-of-transcranial-direct-current-stimulation-on-the-auditory-mismatch-negativity-response-and-working-memory-performance-in-schizophrenia-a-pilot-study
#8
Danielle Impey, Ashley Baddeley, Renee Nelson, Alain Labelle, Verner Knott
Cognitive impairment has been proposed to be the core feature of schizophrenia (Sz). Transcranial direct current stimulation (tDCS) is a non-invasive form of brain stimulation which can improve cognitive function in healthy participants and in psychiatric patients with cognitive deficits. tDCS has been shown to improve cognition and hallucination symptoms in Sz, a disorder also associated with marked sensory processing deficits. Recent findings in healthy controls demonstrate that anodal tDCS increases auditory deviance detection, as measured by the brain-based event-related potential, mismatch negativity (MMN), which is a putative biomarker of Sz that has been proposed as a target for treatment of Sz cognition...
November 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28562181/working-memory-predicts-presence-of-auditory-verbal-hallucinations-in-schizophrenia-and-bipolar-disorder-with-psychosis
#9
Lisanne M Jenkins, Anjuli S Bodapati, Rajiv P Sharma, Cherise Rosen
OBJECTIVE: The recent dramatic increase in research investigating auditory verbal hallucinations (AVHs) has broadened the former narrow focus on schizophrenia to incorporate additional populations that experience these symptoms. However, an understanding of potential shared mechanisms remains elusive. Based on theories suggesting a failure of top-down cognitive control, we aimed to compare the relationship between AVHs and cognition in two categorical diagnoses of psychosis, schizophrenia and psychotic bipolar disorder...
February 2018: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28314070/long-lasting-effects-of-chronic-heavy-cannabis-abuse
#10
Joannis N Nestoros, Elena Vakonaki, Manolis N Tzatzarakis, Athanasios Alegakis, Markos D Skondras, Aristidis M Tsatsakis
BACKGROUND AND OBJECTIVES: The purpose of this study was to evaluate the extent of short-term memory impairment and schizophrenia-like symptoms in heavy and systematic cannabis users and the association between the severity of abuse and the longevity of its persistent symptoms after refraining from such use. METHODS: A complete psychiatric examination and a psychometric evaluation were performed in 48 solely cannabis users. Additionally, head hair samples were analyzed and the detected cannabinoids levels were correlated with the psychometric findings...
June 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28224285/abnormal-effective-connectivity-in-the-brain-is-involved-in-auditory-verbal-hallucinations-in-schizophrenia
#11
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...
June 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28167329/the-role-of-set-shifting-in-auditory-verbal-hallucinations
#12
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...
April 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/27890810/interaction-of-language-auditory-and-memory-brain-networks-in-auditory-verbal-hallucinations
#13
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/27842736/-multidimensionality-of-inner-speech-and-its-relationship-with-abnormal-perceptions
#14
William Tamayo-Agudelo, Juan David Vélez-Urrego, Gilberto Gaviria-Castaño, Salvador Perona-Garcelán
BACKGROUND: Inner speech is a common human experience. Recently, there have been studies linking this experience with cognitive functions, such as problem solving, reading, writing, autobiographical memory, and some disorders, such as anxiety and depression. In addition, inner speech is recognised as the main source of auditory hallucinations. OBJECTIVES: The main purpose of this study is to establish the factor structure of Varieties of Inner Speech Questionnaire (VISQ) in a sample of the Colombian population...
October 2016: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/27690132/deficits-in-metaphor-but-not-in-idiomatic-processing-are-related-to-verbal-hallucinations-in-patients-with-psychosis
#15
Sara Siddi, Donatella Rita Petretto, Rosanna Scanu, Caterina Burrai, Antonella Baita, Pierfranco Trincas, Emanuela Trogu, Liliana Campus, Augusto Contu, Antonio Preti
There is scant evidence that the verbal cognitive deficits observed in patients with psychosis are related to auditory verbal hallucinations. The understanding of metaphors and idiomatic expressions was investigated in a cohort of 90 patients with active psychosis, and in 44 healthy controls. The Psychotic Symptom Rating Scales (PSYRATS: verbal hallucinations subscale) was used to measure the current verbal hallucinations episode; a subscore of the Launay-Slade Hallucination Scale was used to measure long-term propensity to auditory verbal hallucination-like experiences (HLEs) in the sample...
December 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27683568/impaired-self-monitoring-of-inner-speech-in-schizophrenia-patients-with-verbal-hallucinations-and-in-non-clinical-individuals-prone-to-hallucinations
#16
Gildas Brébion, Christian Stephan-Otto, Susana Ochoa, Mercedes Roca, Lourdes Nieto, Judith Usall
BACKGROUND: Previous research has shown that various memory errors reflecting failure in the self-monitoring of speech were associated with auditory/verbal hallucinations in schizophrenia patients and with proneness to hallucinations in non-clinical individuals. METHOD: We administered to 57 schizophrenia patients and 60 healthy participants a verbal memory task involving free recall and recognition of lists of words with different structures (high-frequency, low-frequency, and semantically organisable words)...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27473935/the-neural-mechanisms-of-hallucinations-a-quantitative-meta-analysis-of-neuroimaging-studies
#17
REVIEW
Leor Zmigrod, Jane R Garrison, Joseph Carr, Jon S Simons
Activation likelihood estimation meta-analysis of functional neuroimaging data was used to investigate the neural mechanisms underlying auditory-verbal and visual hallucinations (AVHs and VHs). Consistent activation across studies during AVHs, but not VHs, in Wernicke's and Broca's areas is consistent with involvement of speech and language processes in the experience of hearing voices when none are present. Similarly, greater activity in auditory cortex during AVHs and in visual cortex during VHs supports models proposing over-stimulation of sensory cortices in the generation of these perceptual anomalies...
October 2016: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/27460616/psychological-mechanisms-mediating-effects-between-trauma-and-psychotic-symptoms-the-role-of-affect-regulation-intrusive-trauma-memory-beliefs-and-depression
#18
RANDOMIZED CONTROLLED TRIAL
Amy Hardy, Richard Emsley, Daniel Freeman, Paul Bebbington, Philippa A Garety, Elizabeth E Kuipers, Graham Dunn, David Fowler
Evidence suggests a causal role for trauma in psychosis, particularly for childhood victimization. However, the establishment of underlying trauma-related mechanisms would strengthen the causal argument. In a sample of people with relapsing psychosis (n = 228), we tested hypothesized mechanisms specifically related to impaired affect regulation, intrusive trauma memory, beliefs, and depression. The majority of participants (74.1%) reported victimization trauma, and a fifth (21.5%) met symptomatic criteria for Posttraumatic Stress Disorder...
July 2016: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/27444616/monitoring-what-is-real-the-effects-of-modality-and-action-on-accuracy-and-type-of-reality-monitoring-error
#19
Jane R Garrison, Rebecca Bond, Emma Gibbard, Marcia K Johnson, Jon S Simons
Reality monitoring refers to processes involved in distinguishing internally generated information from information presented in the external world, an activity thought to be based, in part, on assessment of activated features such as the amount and type of cognitive operations and perceptual content. Impairment in reality monitoring has been implicated in symptoms of mental illness and associated more widely with the occurrence of anomalous perceptions as well as false memories and beliefs. In the present experiment, the cognitive mechanisms of reality monitoring were probed in healthy individuals using a task that investigated the effects of stimulus modality (auditory vs visual) and the type of action undertaken during encoding (thought vs speech) on subsequent source memory...
February 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/27161220/vasculitis-cerebral-infarction-and-persistent-bartonella-henselae-infection-in-a-child
#20
Nandhakumar Balakrishnan, Marna Ericson, Ricardo Maggi, Edward B Breitschwerdt
BACKGROUND: The genus Bartonella is comprised of a rapidly increasing number of pathogenic species that induce a seemingly diverse spectrum of neurological symptoms. During the 12 year period that followed the initial onset of neurological and gastrointestinal symptoms, an 11 year-old girl experienced a spectrum of neurological complaints including frequent headaches, visual and auditory hallucinations, anxiety, vision loss involving the lower left quadrant of both eyes, episodic bouts of generalized paralysis, facial palsy, chronic insomnia, seizures, dizziness, cognitive dysfunction, and memory loss...
May 10, 2016: Parasites & Vectors
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