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Dissociative Symptoms

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https://www.readbyqxmd.com/read/28107899/childhood-trauma-perpetrated-by-close-others-psychiatric-dysfunction-and-urological-symptoms-in-patients-with-interstitial-cystitis-bladder-pain-syndrome
#1
Chui-De Chiu, Ming-Huei Lee, Wei-Chih Chen, Hoi Lam Ho, Huei-Ching Wu
BACKGROUND: A psychosocial phenotype of interstitial cystitis/bladder pain syndrome (IC/BPS), a urogenital condition without known organic causes, was proposed. While psychosocial variables, including interpersonal maltreatment and negative affect, were studied in association with IC/BPS, the specificities of the relationships between childhood trauma by close others, psychiatric dysfunctions (negative affect and post-traumatic psychopathology), and urogenital symptoms have not been established...
February 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28103527/distinct-cortico-striatal-connections-with-subthalamic-nucleus-underlie-facets-of-compulsivity
#2
Laurel S Morris, Kwangyeol Baek, Valerie Voon
The capacity to flexibly respond to contextual changes is crucial to adapting to a dynamic environment. Compulsivity, or behavioural inflexibility, consists of heterogeneous subtypes with overlapping yet discrete neural substrates. The subthalamic nucleus (STN) mediates the switch from automatic to controlled processing to slow, break or stop behaviour when necessary. Rodent STN lesions or inactivation are linked with perseveration or repetitive, compulsive responding. However, there are few studies examining the role of latent STN-centric neural networks and compulsive behaviour in healthy individuals...
December 29, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28088063/verbal-and-musical-short-term-memory-variety-of-auditory-disorders-after-stroke
#3
Catherine Hirel, Norbert Nighoghossian, Yohana Lévêque, Salem Hannoun, Lesly Fornoni, Sébastien Daligault, Patrick Bouchet, Julien Jung, Barbara Tillmann, Anne Caclin
Auditory cognitive deficits after stroke may concern language and/or music processing, resulting in aphasia and/or amusia. The aim of the present study was to assess the potential deficits of auditory short-term memory for verbal and musical material after stroke and their underlying cerebral correlates with a Voxel-based Lesion Symptom Mapping approach (VLSM). Patients with an ischemic stroke in the right (N=10) or left (N=10) middle cerebral artery territory and matched control participants (N=14) were tested with a detailed neuropsychological assessment including global cognitive functions, music perception and language tasks...
January 11, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28080971/interoceptive-dimensions-across-cardiac-and-respiratory-axes
#4
Sarah N Garfinkel, Miranda F Manassei, Giles Hamilton-Fletcher, Yvo In den Bosch, Hugo D Critchley, Miriam Engels
Interoception refers to the sensing of signals concerning the internal state of the body. Individual differences in interoceptive sensitivity are proposed to account for differences in affective processing, including the expression of anxiety. The majority of investigations of interoceptive accuracy focus on cardiac signals, typically using heartbeat detection tests and self-report measures. Consequently, little is known about how different organ-specific axes of interoception relate to each other or to symptoms of anxiety...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28077328/dissociation-between-working-memory-performance-and-proactive-interference-control-in-post-traumatic-stress-disorder
#5
Diane Swick, Julien Cayton, Victoria Ashley, And U Turken
Deficits in working memory (WM) and cognitive control processes have been reported in post-traumatic stress disorder (PTSD), in addition to clinical symptoms such as hypervigilance, re-experiencing, and avoidance of trauma reminders. Given the uncontrollable nature of intrusive memories, an important question is whether PTSD is associated with altered control of interference in WM. Some studies also suggest that episodic memory shows a material-specific dissociation in PTSD, with greater impairments in verbal memory and relative sparing of nonverbal memory...
January 7, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28072642/acute-neuropsychiatric-symptoms-associated-with-antibiotic-treatment-of-helicobacter-pylori-infections-a-review
#6
Nicholas H Neufeld, Nourhan S Mohamed, Nikola Grujich, Kenneth Shulman
Helicobacter pylori infects half the global population. Because serious complications can result from this infection, a so-called "triple therapy" is recommended: treatment with a proton-pump inhibitor and clarithromycin, along with amoxicillin or metronidazole. Although these antibiotics have been associated with neuropsychiatric symptoms, it is difficult to disentangle the effects of antibiotics from the effects of acute infections that may precipitate acute neuropsychiatric symptoms. Study of patients with chronic H...
January 2017: Journal of Psychiatric Practice
https://www.readbyqxmd.com/read/28072467/a-cross-lagged-panel-study-of-dissociation-and-posttraumatic-stress-in-a-treatment-seeking-sample-of-survivors-of-childhood-sexual-abuse
#7
Siobhan Murphy, Ask Elklit, Jamie Murphy, Philip Hyland, Mark Shevlin
OBJECTIVE: The current prospective study assessed the temporal relations between dissociation and posttraumatic stress (PTS) in a sample of treatment-seeking female survivors of childhood sexual abuse. PTS refers to symptoms associated with posttraumatic stress disorder (PTSD) in the absence of a clinical diagnosis of PTSD. METHOD: Initial assessment was on average 23 years after the onset of abuse (N = 405), and participants were followed-up after 6 months (N = 245) and 12 months (N = 119)...
January 10, 2017: Journal of Clinical Psychology
https://www.readbyqxmd.com/read/28069543/brain-oscillations-differentially-encode-noxious-stimulus-intensity-and-pain-intensity
#8
Moritz M Nickel, Elisabeth S May, Laura Tiemann, Paul Schmidt, Martina Postorino, Son Ta Dinh, Joachim Gross, Markus Ploner
Noxious stimuli induce physiological processes which commonly translate into pain. However, under certain conditions, pain intensity can substantially dissociate from stimulus intensity, e.g. during longer-lasting pain in chronic pain syndromes. How stimulus intensity and pain intensity are differentially represented in the human brain is, however, not yet fully understood. We therefore used electroencephalography (EEG) to investigate the cerebral representation of noxious stimulus intensity and pain intensity during 10min of painful heat stimulation in 39 healthy human participants...
January 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/28068142/distinguishing-war-related-ptsd-resulting-from-perpetration-and-betrayal-based-morally-injurious-events
#9
Alexander H Jordan, Ethan Eisen, Elisa Bolton, William P Nash, Brett T Litz
OBJECTIVE: We investigated whether potentially morally injurious events (PMIEs) during a combat deployment may lead to PTSD through distinct pathways from danger-based events. We also examined the prevalence of perpetration-based PMIEs, during which service members behaved in ways that violated their own moral values, and betrayal-based PMIEs, during which personal moral expectations were violated by trusted others. METHOD: Using a sample of 867 active duty Marines from a single infantry battalion that engaged in heavy ground combat while deployed to Afghanistan, a structural equation model was built to examine the relationships between perpetration- and betrayal-based PMIEs, combat experiences, and peritraumatic dissociation reported at 1 month postdeployment, and guilt/shame, anger, and PTSD symptoms reported at 8 months postdeployment...
January 9, 2017: Psychological Trauma: Theory, Research, Practice and Policy
https://www.readbyqxmd.com/read/28065191/dissociation-in-patients-with-dissociative-seizures-relationships-with-trauma-and-seizure-symptoms
#10
S Pick, J D C Mellers, L H Goldstein
BACKGROUND: This study aimed to extend the current understanding of dissociative symptoms experienced by patients with dissociative (psychogenic, non-epileptic) seizures (DS), including psychological and somatoform types of symptomatology. An additional aim was to assess possible relationships between dissociation, traumatic experiences, post-traumatic symptoms and seizure manifestations in this group. METHOD: A total of 40 patients with DS were compared with a healthy control group (n = 43), matched on relevant demographic characteristics...
January 9, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28057371/3-meo-pcp-intoxication-in-two-young-men-first-in-vivo-detection-in-italy
#11
Elisabetta Bertol, Jennifer Pascali, Diego Palumbo, Valeria Catalani, Maria Grazia Di Milia, Alessia Fioravanti, Francesco Mari, Fabio Vaiano
3-MeO-PCP or 3-methoxyphencyclidine is a derivative of phencyclidine. It acts as a dissociative anesthetic and it has allegedly hallucinogenic and sedative effects. There are almost no documented intoxication cases and references about its pharmacology and toxicity in literature. This study presents two concomitant intoxication cases due to consumption of 3-MeO-PCP and alcohol. A 19 (A) and a 21 years old (B) men were brought to Santa Maria Nuova Hospital in a comatose state (Glasgow score 3). They showed respiratory acidosis, right anisocoria with mydriatic pupils and hypothermia...
December 26, 2016: Forensic Science International
https://www.readbyqxmd.com/read/28057005/intragenerational-social-mobility-and-functional-somatic-symptoms-in-a-northern-swedish-context-analyses-of-diagonal-reference-models
#12
Frida Jonsson, Miguel San Sebastian, Anne Hammarström, Per E Gustafsson
BACKGROUND: Research indicate that social class mobility could be potentially important for health, but whether this is due to the movement itself or a result of people having been integrated in different class contexts is, to date, difficult to infer. In addition, although several theories suggest that transitions between classes in the social hierarchy can be stressful experiences, few studies have empirically examined whether such movements may have health effects, over and above the implications of "being" in these classes...
January 3, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28040671/decisional-impulsivity-and-the-associative-limbic-subthalamic-nucleus-in-obsessive-compulsive-disorder-stimulation-and-connectivity
#13
Valerie Voon, Fabien Droux, Laurel Morris, Stephan Chabardes, Thierry Bougerol, Olivier David, Paul Krack, Mircea Polosan
Why do we make hasty decisions for short-term gain? Rapid decision-making with limited accumulation of evidence and delay discounting are forms of decisional impulsivity. The subthalamic nucleus is implicated in inhibitory function but its role in decisional impulsivity is less well-understood. Here we assess decisional impulsivity in subjects with obsessive compulsive disorder who have undergone deep brain stimulation of the limbic and associative subthalamic nucleus. We show that stimulation of the subthalamic nucleus is causally implicated in increasing decisional impulsivity with less accumulation of evidence during probabilistic uncertainty and in enhancing delay discounting...
December 31, 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28035712/identification-of-fluency-and-word-finding-difficulty-in-samples-of-children-with-diverse-language-backgrounds
#14
Peter Howell, Kevin Tang, Outi Tuomainen, Sin Kan Chan, Kirsten Beltran, Avin Mirawdeli, John Harris
BACKGROUND: Stuttering and word-finding difficulty (WFD) are two types of communication difficulty that occur frequently in children who learn English as an additional language (EAL), as well as those who only speak English. The two disorders require different, specific forms of intervention. Prior research has described the symptoms of each type of difficulty. This paper describes the development of a non-word repetition test (UNWR), applicable across languages, that was validated by comparing groups of children identified by their speech and language symptoms as having either stuttering or WFD...
December 30, 2016: International Journal of Language & Communication Disorders
https://www.readbyqxmd.com/read/28032002/fmri-functional-connectivity-of-the-periaqueductal-gray-in-ptsd-and-its-dissociative-subtype
#15
Sherain Harricharan, Daniela Rabellino, Paul A Frewen, Maria Densmore, Jean Théberge, Margaret C McKinnon, Allan N Schore, Ruth A Lanius
BACKGROUND: Posttraumatic stress disorder (PTSD) is associated with hyperarousal and active fight or flight defensive responses. By contrast, the dissociative subtype of PTSD, characterized by depersonalization and derealization symptoms, is frequently accompanied by additional passive or submissive defensive responses associated with autonomic blunting. Here, the periaqueductal gray (PAG) plays a central role in defensive responses, where the dorsolateral (DL-PAG) and ventrolateral PAG (VL-PAG) are thought to mediate active and passive defensive responses, respectively...
December 2016: Brain and Behavior
https://www.readbyqxmd.com/read/28030584/neuroanatomical-abnormalities-in-violent-individuals-with-and-without-a-diagnosis-of-schizophrenia
#16
Victor A Del Bene, John J Foxe, Lars A Ross, Menahem I Krakowski, Pal Czobor, Pierfilippo De Sanctis
Several structural brain abnormalities have been associated with aggression in patients with schizophrenia. However, little is known about shared and distinct abnormalities underlying aggression in these subjects and non-psychotic violent individuals. We applied a region-of-interest volumetric analysis of the amygdala, hippocampus, and thalamus bilaterally, as well as whole brain and ventricular volumes to investigate violent (n = 37) and non-violent chronic patients (n = 26) with schizophrenia, non-psychotic violent (n = 24) as well as healthy control subjects (n = 24)...
2016: PloS One
https://www.readbyqxmd.com/read/28029435/assessment-of-complex-dissociative-disorder-patients-and-simulated-dissociation-in-forensic-contexts
#17
Bethany L Brand, Aliya R Webermann, A Steven Frankel
Few assessors receive training in assessing dissociation and complex dissociative disorders (DDs). Potential differential diagnoses include anxiety, mood, psychotic, substance use, and personality disorders, as well as exaggeration and malingering. Individuals with DDs typically elevate on many clinical and validity scales on psychological tests, yet research indicates that they can be distinguished from DD simulators. Becoming informed about the testing profiles of DD individuals and DD simulators can improve the accuracy of differential diagnoses in forensic settings...
October 29, 2016: International Journal of Law and Psychiatry
https://www.readbyqxmd.com/read/28009708/trunnion-corrosion-in-metal-on-polyethylene-total-hip-arthroplasty-a-case-series
#18
Sivashanmugam Raju, Karthikeyan Chinnakkannu, Mohan K Puttaswamy, Matthew J Phillips
INTRODUCTION: Modular total hip arthroplasty implants can help the operating surgeon reproduce the optimum limb length and offset; however, the modularity can lead to fretting and corrosion with associated metal-related problems. Although metal-on-metal bearings are often reported to have problems, recent case reports suggest that the problems can occur with any articulation, usually as a result of problems at the head/neck junction. METHODS: We retrospectively reviewed three cases of a specific implant combination with nontraumatic trunnion failure, with two cases presenting as acute complete dissociation of the femoral head from the neck...
February 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28000078/autistic-traits-and-symptoms-of-social-anxiety-are-differentially-related-to-attention-to-others-eyes-in-social-anxiety-disorder
#19
Johan Lundin Kleberg, Jens Högström, Martina Nord, Sven Bölte, Eva Serlachius, Terje Falck-Ytter
Autism spectrum disorder (ASD) and social anxiety disorder (SAD) have partly overlapping symptoms. Gaze avoidance has been linked to both SAD and ASD, but little is known about differences in social attention between the two conditions. We studied eye movements in a group of treatment-seeking adolescents with SAD (N = 25), assessing SAD and ASD dimensionally. The results indicated a double dissociation between two measures of social attention and the two symptom dimensions. Controlling for social anxiety, elevated autistic traits were associated with delayed orienting to eyes presented among distractors...
December 20, 2016: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/27980891/a-review-of-anticipatory-pleasure-in-schizophrenia
#20
Katherine H Frost, Gregory P Strauss
PURPOSE OF REVIEW: Anhedonia, traditionally defined as a diminished capacity to experience pleasure, has long been considered a core symptom of schizophrenia. However, recent research calls into question whether individuals with schizophrenia are truly anhedonic, suggesting intact subjective and neurophysiological response to rewarding stimuli in-the-moment. Despite a presumably intact capacity to experience pleasure, people with schizophrenia still engage in fewer reward-seeking behaviors...
September 2016: Current Behavioral Neuroscience Reports
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