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https://www.readbyqxmd.com/read/28547519/kurt-goldstein-and-his-nonlocationist-thoughts-on-aphasia-a-pioneer-of-early-network-theories-at-the-beginning-of-the-twentieth-century
#1
Holger Joswig, Gerhard Hildebrandt
In between Carl Wernicke's locationist aphasia concept from 1874 and Norman Geschwind's new connectionist model of human brain functions in 1965, little notice was taken of the historical debate on aphasia and brain plasticity. Interestingly, Kurt Goldstein made long-forgotten, but highly relevant remarks on the connectionist model and thereby served as an important connecting link between Wernicke and Geschwind. With the original contributions of Goldstein and contemporary authors, we analyzed the historical background of the aphasia debate in the time period between Wernicke and Geschwind, which still influences current aphasia concepts and neurosurgical practice of today...
May 25, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28544168/presurgical-language-fmri-mapping-of-six-critical-regions
#2
Christopher F Benjamin, Patricia D Walshaw, Kayleigh Hale, William D Gaillard, Leslie C Baxter, Madison M Berl, Monika Polczynska, Stephanie Noble, Rafeed Alkawadri, Lawrence J Hirsch, Todd C Constable, Susan Y Bookheimer
Language mapping is a key goal in neurosurgical planning. fMRI mapping typically proceeds with a focus on Broca's and Wernicke's areas, although multiple other language-critical areas are now well-known. We evaluated whether clinicians could use a novel approach, including clinician-driven individualized thresholding, to reliably identify six language regions, including Broca's Area, Wernicke's Area (inferior, superior), Exner's Area, Supplementary Speech Area, Angular Gyrus, and Basal Temporal Language Area...
May 23, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28540694/wernicke-s-encephalopathy-in-exclusive-breastfed-infants
#3
Javeed Iqbal Bhat, Qazi Iqbal Ahmed, Ambreen Ali Ahangar, Bashir Ahmed Charoo, Mushtaq Ahmad Sheikh, Wajid Ali Syed
BACKGROUND: Kashmir has a population that largely consumes polished rice which is deficient in thiamine. Furthermore, lactating women in this region are prone to severe thiamine deficiency because of their traditional food avoidance practices. Infantile beriberi is common in exclusively breastfed infants of thiamine deficient mothers in Kashmir. METHODS: This was a one year prospective hospital-based study. We included 50 exclusively breastfed infants in our study...
May 24, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28538516/left-lateralization-of-resting-state-functional-connectivity-between-the-presupplementary-motor-area-and-primary-language-areas
#4
William Lou, Kyung K Peck, Nicole Brennan, Arka Mallela, Andrei Holodny
An abundance of evidence points to the role of a presupplementary motor area (pre-SMA) in human language. This study explores the pre-SMA resting state connectivity network and the nature of its connections to known language areas. We tested the hypothesis that by seeding the pre-SMA, one would be able to establish language laterality to known cortical and subcortical language areas. We analyzed data from 30 right-handed healthy controls and performed the resting state functional MRI. A seed-based analysis using a manually drawn pre-SMA region of interest template was applied...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28537039/investigation-of-dose-reduction-in-cardiac-perfusion-spect-via-optimization-and-choice-of-the-image-reconstruction-strategy
#5
Albert Juan Ramon, Yongyi Yang, P Hendrik Pretorius, Piotr J Slomka, Karen L Johnson, Michael A King, Miles N Wernick
BACKGROUND: We investigated the extent to which the administered dose (activity) level can be reduced without sacrificing diagnostic accuracy for three reconstruction strategies for SPECT-myocardial perfusion imaging (MPI). METHODS: We optimized the parameters of the three reconstruction strategies for perfusion-defect detection over a range of simulated administered dose levels using a set of hybrid studies (derived from 190 subjects) consisting of clinical SPECT-MPI data modified to contain realistic simulated lesions...
May 23, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28533329/pregnancy-outcome-after-first-trimester-use-of-methyldopa-a-prospective-cohort-study
#6
Maria Hoeltzenbein, Evelin Beck, Anne-Katrin Fietz, Juliane Wernicke, Sandra Zinke, Angela Kayser, Stephanie Padberg, Corinna Weber-Schoendorfer, Reinhard Meister, Christof Schaefer
Published experience on first trimester exposure to methyldopa is still limited, although it is recommended as first-line treatment for hypertensive disorders in pregnancy in most countries. The primary aim of this prospective observational cohort study was to analyze the rate of major birth defects and spontaneous abortions in women with methyldopa therapy for chronic hypertension. Outcomes of 261 pregnancies with first trimester exposure to methyldopa and 526 comparison pregnancies without chronic hypertension reported to the German Embryotox pharmacovigilance institute were evaluated...
May 22, 2017: Hypertension
https://www.readbyqxmd.com/read/28525836/arterial-spin-labelling-shows-functional-depression-of-non-lesion-tissue-in-chronic-wernicke-s-aphasia
#7
Holly Robson, Karsten Specht, Helen Beaumont, Laura M Parkes, Karen Sage, Matthew A Lambon Ralph, Roland Zahn
Behavioural impairment post-stroke is a consequence of structural damage and altered functional network dynamics. Hypoperfusion of intact neural tissue is frequently observed in acute stroke, indicating reduced functional capacity of regions outside the lesion. However, cerebral blood flow (CBF) is rarely investigated in chronic stroke. This study investigated CBF in individuals with chronic Wernicke's aphasia (WA) and examined the relationship between lesion, CBF and neuropsychological impairment. Arterial spin labelling CBF imaging and structural MRIs were collected in 12 individuals with chronic WA and 13 age-matched control participants...
November 10, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28464962/wernicke-encephalopathy-without-delirium-in-patients-with-cancer
#8
Hideki Onishi, Mayumi Ishida, Iori Tanahashi, Takao Takahashi, Yoshitada Taji, Kenji Ikebuchi, Daisuke Furuya, Tatsuo Akechi
OBJECTIVE: Wernicke encephalopathy (WE) is a neuropsychiatric disorder caused by thiamine deficiency. Several reports of WE in cancer patients are known. WE is sometimes overlooked because most patients do not exhibit its typical symptoms (e.g., delirium, ataxia, ocular palsy). If delirium is not present, a diagnosis of WE is difficult because delirium is the hallmark symptom of WE. METHOD: Taken from a series on WE in cancer, we report two patients who developed WE without delirium during periodic psycho-oncology outpatient visits...
May 3, 2017: Palliative & Supportive Care
https://www.readbyqxmd.com/read/28450544/privileged-functional-connectivity-between-the-visual-word-form-area-and-the-language-system
#9
W Dale Stevens, Dwight J Kravitz, Cynthia S Peng, Michael Henry Tessler, Alex Martin
The visual word form area (VWFA) is a region in the left occipitotemporal sulcus of literate individuals that is purportedly specialized for visual word recognition. However, there is considerable controversy about its functional specificity and connectivity, with some arguing that it serves as a domain-general, rather than word-specific, visual processor. The VWFA is a critical region for testing hypotheses about the nature of cortical organization, because it is known to develop only through experience (i...
May 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28433347/phonological-and-semantic-processing-during-comprehension-in-wernicke-s-aphasia-an-n400-and-phonological-mapping-negativity-study
#10
Holly Robson, Emma Pilkington, Louise Evans, Vincent DeLuca, James L Keidel
Comprehension impairments in Wernicke's aphasia are thought to result from a combination of impaired phonological and semantic processes. However, the relationship between these cognitive processes and language comprehension has only been inferred through offline neuropsychological tasks. This study used ERPs to investigate phonological and semantic processing during online single word comprehension. EEG was recorded in a group of Wernicke's aphasia n=8 and control participants n=10 while performing a word-picture verification task...
April 20, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28430846/a-case-of-bariatric-surgery-related-wernicke-korsakoff-syndrome-with-persisting-anterograde-amnesia
#11
Philip Gerard Gasquoine
Objective: To describe the theoretical and clinical implications of the neuropsychological evaluation of a case of bariatric surgery-related Wernicke-Korsakoff syndrome. Method: The patient was a 37-year old, female, bilingual, bachelor's degree educated, Mexican American public relations consultant without preexisting psychiatric, neurological, or substance abuse history. Recovery from laparoscopic sleeve gastrectomy surgery for morbid obesity was complicated by intraabdominal abscess, multibacterial infection, and prolonged nausea and vomiting...
April 20, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28428208/resting-state-seed-based-analysis-an-alternative-to-task-based-language-fmri-and-its-laterality-index
#12
K A Smitha, K M Arun, P G Rajesh, B Thomas, C Kesavadas
BACKGROUND AND PURPOSE: Language is a cardinal function that makes human unique. Preservation of language function poses a great challenge for surgeons during resection. The aim of the study was to assess the efficacy of resting-state fMRI in the lateralization of language function in healthy subjects to permit its further testing in patients who are unable to perform task-based fMRI. MATERIALS AND METHODS: Eighteen healthy right-handed volunteers were prospectively evaluated with resting-state fMRI and task-based fMRI to assess language networks...
April 20, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28424604/mapping-critical-language-sites-in-children-performing-verb-generation-whole-brain-connectivity-and-graph-theoretical-analysis-in-meg
#13
Vahab Youssofzadeh, Brady J Williamson, Darren S Kadis
A classic left frontal-temporal brain network is known to support language processes. However, the level of participation of constituent regions, and the contribution of extra-canonical areas, is not fully understood; this is particularly true in children, and in individuals who have experienced early neurological insult. In the present work, we propose whole-brain connectivity and graph-theoretical analysis of magnetoencephalography (MEG) source estimates to provide robust maps of the pediatric expressive language network...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28420351/prognostic-significance-of-trail-r3-and-ccr-2-expression-in-tumor-epithelial-cells-of-patients-with-early-breast-cancer
#14
Vivian Labovsky, Leandro Marcelo Martinez, Kevin Mauro Davies, María de Luján Calcagno, Hernán García-Rivello, Alejandra Wernicke, Leonardo Feldman, Ayelén Matas, María Belén Giorello, Francisco Raúl Borzone, Hosoon Choi, Scott C Howard, Norma Alejandra Chasseing
BACKGROUND: Tumor epithelial cells (TEpCs) and spindle-shaped stromal cells, not associated with the vasculature, of patients with early breast cancer express osteoprotegerin (OPG), tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), receptor activator of nuclear factor kappa B ligand, stromal cell derived factor-1, interleukin-6, macrophage colony stimulating factor, chemokine (C-C motif) ligand-2 (CCL-2) and their receptors at significantly higher levels compared with non-neoplastic breast tissues...
April 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28416563/home-based-therapy-for-chronic-wernicke-s-aphasia
#15
EDITORIAL
Leonardo Bonilha, Julius Fridriksson
No abstract text is available yet for this article.
April 17, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28413748/thiamine-assays-advances-challenges-and-caveats
#16
REVIEW
Katie A Edwards, Nicole Tu-Maung, Krystal Cheng, Binbin Wang, Antje J Baeumner, Clifford E Kraft
Thiamine (vitamin B1) is essential to the health of all living organisms and deficiency has long been associated with diseases in animals such as fish, birds, alligators, and domesticated ruminant mammals. Thiamine is also implicated in several human diseases including Alzheimer's, diabetes, dementia, depression and, most notably, Wernicke-Korsakoff syndrome and Beriberi disease. Yet, highly sensitive and specific detection of thiamine remains an analytical challenge, as pM to nm levels of thiamine need to be detected in environmental and human samples, respectively, various phosphorylated variants need to be discriminated, and rapid on-site detection would be highly desirable...
April 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28410563/wernicke-s-encephalopathy-following-reduced-food-intake-due-to-depressive-disorders
#17
Donato Melchionda, Tommaso Martino, Elena Carapelle, Alessandra Lalla, Daniela Cologno, Carlo Avolio
Wernicke's encephalopathy (WE) is an unexpected common neurological disorder caused by thiamine deficiency often due to alcohol abuse, but WE-not alcohol related is also frequent. A prolonged reduction of food intake can cause WE. This condition can arise in depression disorders, especially in the early stages of these psychiatric syndromes. WE is characterized by the triad of signs: ataxia, ocular dysfunctions and confusional state. However, they rarely appear together and this makes the diagnosis particularly difficult, especially when there is not a history of alcohol abuse...
April 14, 2017: Nutritional Neuroscience
https://www.readbyqxmd.com/read/28396896/-diagnostics-and-treatment-of-sex-offenders-in-psychiatric-forensic-committment-according-to-%C3%A2-%C3%A2-63%C3%A2-stgb-and-in-outpatient-prevention
#18
G Stolpmann, N Kahnt, I Müller, S Palmer, M Wernicke, V Wulf, K Jordan, J L Müller
In the following article similarities and differences concerning the treatment of sex offenders in the psychiatric forensic commitment (§ 63 German penal code) and of persons with a self-reported sexual interest in children, who were diagnosed and treated in the outpatient prevention of sexual abuse (PSM) in Göttingen are demonstrated. Diagnostic and therapeutic characteristics of outpatient prevention as well as the initial results of the evaluation of the Göttingen therapy manual are presented and differentiated from the normal treatment program in psychiatric forensic commitment...
April 10, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/28396294/chronic-ambulatory-electrocorticography-from-human-speech-cortex
#19
Vikram R Rao, Matthew K Leonard, Jonathan K Kleen, Ben A Lucas, Emily A Mirro, Edward F Chang
Direct intracranial recording of human brain activity is an important approach for deciphering neural mechanisms of cognition. Such recordings, usually made in patients with epilepsy undergoing inpatient monitoring for seizure localization, are limited in duration and depend on patients' tolerance for the challenges associated with recovering from brain surgery. Thus, typical intracranial recordings, similar to most non-invasive approaches in humans, provide snapshots of brain activity in acute, highly constrained settings, limiting opportunities to understand long timescale and natural, real-world phenomena...
April 7, 2017: NeuroImage
https://www.readbyqxmd.com/read/28395678/systemic-lupus-erythematosus-a-possible-cause-of-non-alcoholic-wernicke-s-encephalopathy
#20
M T L Nyo, D Magazi, M M T M Ally
We report a young woman with systemic lupus erythematosus (SLE) and an acute cerebellar ataxia. A history of poor appetite and vomiting preceded the inco-ordination. Ataxia in SLE has been well described, but is nevertheless uncommon. The clinical triad of mild confusion, ataxia and ophthalmoplegia also raised the possibility of Wernicke's encephalopathy (WE). The diagnosis of WE was further supported by the magnetic resonance imaging features. Owing to overlapping causal factors, this case illustrates the complexity of diagnosing and managing neuropsychiatric syndromes in a patient with SLE...
March 29, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
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