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https://www.readbyqxmd.com/read/28541233/quaternion-locality-constrained-coding-for-color-face-hallucination
#1
Licheng Liu, Shutao Li, C L Philip Chen
Recently, the locality linear coding (LLC) has attracted more and more attentions in the areas of image processing and computer vision. However, the conventional LLC with real setting is just designed for the grayscale image. For the color image, it usually treats each color channel individually or encodes the monochrome image by concatenating all the color channels, which ignores the correlations among different channels. In this paper, we propose a quaternion-based locality-constrained coding (QLC) model for color face hallucination in the quaternion space...
May 23, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28539902/arousal-in-nocturnal-consciousness-how-dream-and-sleep-experiences-may-inform-us-of-poor-sleep-quality-stress-and-psychopathology
#2
REVIEW
Nirit Soffer-Dudek
The term "sleep experiences," coined by Watson (2001), denotes an array of unusual nocturnal consciousness phenomena; for example, nightmares, vivid or recurrent dreams, hypnagogic hallucinations, dreams of falling or flying, confusional arousals, and lucid dreams. Excluding the latter, these experiences reflect a single factor of atypical oneiric cognitions ("general sleep experiences"). The current study is an opinionated mini-review on the associations of this factor-measured with the Iowa sleep experiences survey (ISES, Watson, 2001)-with psychopathological symptoms and stress...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28533946/rethinking-social-cognition-in-light-of-psychosis-reciprocal-implications-for-cognition-and-psychopathology
#3
Vaughan Bell, Kathryn L Mills, Gemma Modinos, Sam Wilkinson
The positive symptoms of psychosis largely involve the experience of illusory social actors and yet our current measures of social cognition, at best, only weakly predict their presence. We review evidence to suggest that the range of current approaches in social cognition is not sufficient to explain the fundamentally social nature of these experiences. We argue that social agent representation is an important organising principle for understanding social cognition and that alterations in social agent representation may be a factor in the formation of delusions and hallucination in psychosis...
May 2017: Clinical Psychological Science
https://www.readbyqxmd.com/read/28532686/mismatch-negativity-mmn-to-spatial-deviants-and-behavioral-spatial-discrimination-ability-in-the-etiology-of-auditory-verbal-hallucinations-and-thought-disorder-in-schizophrenia
#4
Megan A Perrin, Joshua T Kantrowitz, Gail Silipo, Elisa Dias, Omar Jabado, Daniel C Javitt
Persistent auditory verbal hallucinations (AVH) in schizophrenia are increasingly tied to dysfunction at the level of auditory cortex. AVH may reflect in part misattribution of internally generated thoughts to external spatial locations. Here, we investigated the association between persistent AVH and spatial localization abilities assessed both behaviorally and by mismatch negativity (MMN) to location deviants. METHODS: Spatial- and tonal- discrimination abilities were assessed in patients (n=20) and controls (n=20) using free-field tones...
May 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28532443/resourse-use-and-disease-couse-in-dementia-nursing-home-redic-nh-a-longitudinal-cohort-study-design-and-patient-characteristics-at-admission-to-norwegian-nursing-homes
#5
Irene Røen, Geir Selbæk, Øyvind Kirkevold, Knut Engedal, Ingelin Testad, Sverre Bergh
BACKGROUND: Earlier studies of nursing home patients show a high prevalence of dementia, neuropsychiatric symptoms (NPS), pain, and dependency in activities of daily living. The REDIC-NH cohort was set up to study the disease course and the resources used in patients with dementia in Norway. The aim of this paper was to describe the methods and the data collection, and to present selected data about patients at admission to a nursing home. METHODS: We included 696 patients at admission to a nursing home and followed them with biannual assessments until death...
May 22, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28523985/hallucination-consciousness-illusion
#6
Kai Hamburger, Katharina Graben, Hartmut Neuf
No abstract text is available yet for this article.
June 2017: Perception
https://www.readbyqxmd.com/read/28521005/using-directed-acyclic-graphs-in-epidemiological-research-in-psychosis-an-analysis-of-the-role-of-bullying-in-psychosis
#7
Giusi Moffa, Gennaro Catone, Jack Kuipers, Elizabeth Kuipers, Daniel Freeman, Steven Marwaha, Belinda R Lennox, Matthew R Broome, Paul Bebbington
Modern psychiatric epidemiology researches complex interactions between multiple variables in large datasets. This creates difficulties for causal inference. We argue for the use of probabilistic models represented by directed acyclic graphs (DAGs). These capture the dependence structure of multiple variables and, used appropriately, allow more robust conclusions about the direction of causation. We analyzed British national survey data to assess putative mediators of the association between bullying victimization and persecutory ideation...
May 17, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28517948/randomized-controlled-trial-of-an-internet-cognitive-behavioral-skills-based-program-for-auditory-hallucinations-in-persons-with-psychosis
#8
Jennifer D Gottlieb, Vasudha Gidugu, Mihoko Maru, Miriam C Tepper, Matthew J Davis, Jennifer Greenwold, Ruth A Barron, Brian P Chiko, Kim T Mueser
OBJECTIVE: Despite strong evidence supporting the effectiveness of cognitive-behavioral therapy for psychosis (CBTp), most clinicians in the United States have received little or no training in the approach and access remains very low, indicating a potential role for technology in increasing access to this intervention. Coping With Voices (CWV) is a 10-session, interactive, Web-based CBTp skills program that was developed to meet this need, and was shown to be feasible and associated with reduced severity of auditory hallucinations in a previous pilot study...
May 18, 2017: Psychiatric Rehabilitation Journal
https://www.readbyqxmd.com/read/28516807/neurofeedback-based-enhancement-of-single-trial-auditory-evoked-potentials-feasibility-in-healthy-subjects
#9
Kathryn Rieger, Marie-Helene Rarra, Nicolas Moor, Laura Diaz Hernandez, Anja Baenninger, Nadja Razavi, Thomas Dierks, Daniela Hubl, Thomas Koenig
Previous studies showed a global reduction of the event-related potential component N100 in patients with schizophrenia, a phenomenon that is even more pronounced during auditory verbal hallucinations. This reduction assumingly results from dysfunctional activation of the primary auditory cortex by inner speech, which reduces its responsiveness to external stimuli. With this study, we tested the feasibility of enhancing the responsiveness of the primary auditory cortex to external stimuli with an upregulation of the event-related potential component N100 in healthy control subjects...
May 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28507523/autism-spectrum-disorders-and-schizophrenia-spectrum-disorders-excitation-inhibition-imbalance-and-developmental-trajectories
#10
Roberto Canitano, Mauro Pallagrosi
Autism spectrum disorders (ASD) and schizophrenia spectrum disorders (SSD) share clinical and genetic components that have long been recognized. The two disorders co-occur more frequently than would be predicted by their respective prevalence, suggesting that a complex, multifactor association is involved. However, DSM-5 maintains the distinction between ASD, with core social and communication impairments, and SSD, including schizophrenia (SCZ), with hallucinations, delusions, and thought disorder as essential features...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28506503/extended-clinical-spectrum-of-anti-n-methyl-d-aspartate-receptor-encephalitis-in-children-a-case-series
#11
Ajay Goenka, Vivek Jain, Hiroki Nariai, Alfred Spiro, Mitchell Steinschneider
OBJECTIVE: There is a wide spectrum of clinical manifestations in children with anti-N-methyl-d-aspartate (NMDA) receptor antibody encephalitis from two different health care settings. METHODS: We describe our experience with 13 patients (median age, 7 years; range, 5 months to 19 years) presenting to tertiary referral centers in India and the United States. RESULTS: Initial manifestations were neurological (seizures or movement disorders) in eight patients, and psychiatric (e...
April 5, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28498375/neuro-ophthalmologic-manifestations-of-cholangiocarcinoma-a-case-series
#12
G Rico, S V Smith, Y Siddiqui, A Whyte, D Gombos, A G Lee
PurposeTo describe the neuro-ophthalmologic findings of cholangiocarcinoma.MethodsWe report a retrospective chart review of cholangiocarcinoma patients presenting at two tertiary care centers in the Texas Medical Center.ResultsFive patients with neuro-ophthalmologic symptoms related to cholangiocarcinoma were identified. One patient presented with diplopia due to metastasis to the left medial rectus muscle, two patients had metastasis to the occipital lobe resulting in homonymous hemianopsia, one patient had involvement of the clivus resulting in sixth nerve palsy, and one presented with a hypercoagulable state-related stroke causing a homonymous hemianopsia and visual hallucinations...
May 12, 2017: Eye
https://www.readbyqxmd.com/read/28497892/echoes-of-others-a-path-analytic-examination-of-an-interpersonal-cognitive-model-of-voice-related-distress
#13
Esther R Cole, Clara Strauss, Chris Fife-Schaw, Simon McCarthy-Jones
OBJECTIVES: Cognitive models propose that levels of distress associated with auditory verbal hallucinations ('voices') are influenced by the hearers' beliefs about their voices (perceived malevolence and omnipotence), their negative beliefs about themselves and others and their attachment style. This study aims to test a comprehensive model of the relationship between these variables in order to identify distal and proximal interpersonal and cognitive factors contributing to voice-related distress...
May 12, 2017: Psychology and Psychotherapy
https://www.readbyqxmd.com/read/28496495/cortical-alpha-activity-in-schizoaffective-patients
#14
Mahdi Moeini, Ali Khaleghi, Mohammad Reza Mohammadi, Hadi Zarafshan, Rachel L Fazio, Hamid Majidi
Objective: Electrophysiological studies have identified abnormal oscillatory activities in the cerebral cortex in schizophrenia and mood disorders. Biological and pathophysiological evidence suggests specific deficits in serotonin (5-HT) receptor function in schizoaffective disorder (SA), a clinical syndrome with characteristics of both schizophrenia and bipolar disorder. This study investigated alpha oscillations in patients with SA. Method: Electroencephalography was used to measure ongoing and evoked alpha oscillations in 38 adults meeting Diagnostic and Statistical Manual of Mental Disorders-Fourth Edition (DSM-IV) criteria for SA, and in 39 healthy controls...
January 2017: Iranian Journal of Psychiatry
https://www.readbyqxmd.com/read/28493654/the-us-food-and-drug-administration-s-perspective-on-the-new-antipsychotic-pimavanserin
#15
Mitchell V Mathis, Brendan M Muoio, Paul Andreason, Amy M Avila, Tiffany Farchione, Aisar Atrakchi, Robert J Temple
OBJECTIVE: To summarize the US Food and Drug Administration's (FDA's) review of the safety and effectiveness for pimavanserin, an atypical antipsychotic, for the treatment of hallucinations and delusions associated with Parkinson's disease psychosis. We describe the regulatory and clinical issues important to the FDA's approval of this New Drug Application, with special focus on the risk-benefit balance. We also describe a new labeling feature that presents additional efficacy data to clinicians...
May 9, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28493561/distress-omnipotence-and-responsibility-beliefs-in-command-hallucinations
#16
Lyn Ellett, Olga Luzon, Max Birchwood, Zarina Abbas, Abi Harris, Paul Chadwick
OBJECTIVES: Command hallucinations are considered to be one of the most distressing and disturbing symptoms of schizophrenia. Building on earlier studies, we compare key attributes in the symptomatic, affective, and cognitive profiles of people diagnosed with schizophrenia and hearing voices that do (n = 77) or do not (n = 74) give commands. METHODS: The study employed a cross-sectional design, in which we assessed voice severity, distress and control (PSYRATs), anxiety and depression (HADS), beliefs about voices (BAVQ-R), and responsibility beliefs (RIQ)...
May 11, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28491313/positron-emission-tomography-imaging-in-a-case-of-e200k-mutation-related-spongiform-encephalopathy-with-non-diagnostic-magnetic-resonance-imaging-and-cerebrospinal-fluid-testing
#17
Pravin George, Christopher R Newey, Karin P Mente, Erik P Pioro
OBJECTIVE: Creutzfeldt-Jakob disease is a rapidly progressive spongiform encephalopathy. The E200K mutation is found in a majority of genetically transmitted Creutzfeldt-Jakob disease cases. METHODS: We describe the case and associated neuroimaging of an E200K-129M gene-mutation-related fatal spongiform encephalopathy with resultant clinical insomnia and thalamic changes. RESULTS: A 46-year-old Caucasian male presented with, who was well until 2 months prior to admission, a rapidly progressive dementia followed by a change in personality with auditory and visual hallucinations...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28489429/treatment-of-hallucinations-in-the-context-of-anxiety-when-less-is-more
#18
Presenters Robyn P Thom, William Hall, Eleni Maneta, Discussants Maxwell J Luber, Barbara J Coffey
No abstract text is available yet for this article.
May 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28484400/steroid-responsive-chronic-schizophreniform-syndrome-in-the-context-of-mildly-increased-antithyroid-peroxidase-antibodies
#19
Dominique Endres, Evgeniy Perlov, Anne Nicole Riering, Viktoria Maier, Oliver Stich, Rick Dersch, Nils Venhoff, Daniel Erny, Irina Mader, Ludger Tebartz van Elst
BACKGROUND: Schizophreniform syndromes can be divided into primary forms from polygenic causes or secondary forms due to immunological, epileptiform, monogenic, or degenerative causes. Steroid-responsive encephalopathy associated with autoimmune thyroiditis (SREAT) is a secondary immunological form associated with increased thyroid antibodies, such as antithyroid peroxidase antibodies and shows a good response to corticosteroids. CASE PRESENTATION: We present the case of a 41-year-old woman suffering from a schizophreniform syndrome...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28482196/auditory-and-non-auditory-hallucinations-in-first-episode-psychosis-differential-associations-with-diverse-clinical-features
#20
Chiara Galletti, Enrico Paolini, Alfonso Tortorella, Michael T Compton
Data from 247 first-episode psychosis patients were used to explore associations between types of hallucinations and nine diverse clinical characteristics. Psychopathology was rated using the Scale for the Assessment of Positive Symptoms and Scale for the Assessment of Negative Symptoms (SANS). Childhood adversity was assessed with seven instruments; family history with an adapted version of the Family Interview for Genetic Studies; age at onset of psychosis and duration of untreated psychosis (DUP) with the Symptom Onset in Schizophrenia inventory; and insight with the Birchwood Insight Scale...
April 24, 2017: Psychiatry Research
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