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Neuropsychology

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https://www.readbyqxmd.com/read/27922867/the-value-of-99mtc-ecd-spect-with-statistical-image-analysis-on-enhancing-the-early-diagnosis-of-primary-progressive-aphasia
#1
Cheng-Yu Wei, Pai-Yi Chiu, Po-Nien Hou, Hiroshi Matsuda, Guang-Uei Hung
A 64-year-old woman with poor short-term memory was first suspected as early Alzheimer disease. Tc ECD brain SPECT was arranged for differential diagnosis. A small area of mild hypoperfusion was noted in the left temporal lobe on conventional display. Further statistical analysis of SPECT with an easy Z-score imaging system showed large areas of distinct hypoperfusion in left precentral and perisylvian cortical areas, compatible with typical pictures of nonfluent variant primary progressive aphasia (PPA), but no involvement in areas characteristic for Alzheimer disease...
December 3, 2016: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/27922536/traffic-related-air-pollution-and-attention-in-primary-school-children-short-term-association
#2
Jordi Sunyer, Elisabet Suades-González, Raquel García-Esteban, Ioar Rivas, Jesús Pujol, Mar Alvarez-Pedrerol, Joan Forns, Xavier Querol, Xavier Basagaña
BACKGROUND: Although air pollution's short-term effects are well understood to be marked and preventable, its acute neuropsychological effects have, to our knowledge, not yet been studied. We aim to examine the association between daily variation in traffic-related air pollution and attention. METHODS: We conducted a follow-up study from January 2012 to March 2013 in 2,687 school children from 265 classrooms in 39 schools in Barcelona (Catalonia, Spain). We assessed four domains of children's attention processes every 3 months over four repeated visits providing a total of 10,002 computerized tests on 177 different days using the child Attention Network test (ANT)...
November 29, 2016: Epidemiology
https://www.readbyqxmd.com/read/27922194/pharmacodynamic-response-profiles-of-anxiolytic-and-sedative-drugs
#3
Xia Chen, Freerk Broeyer, Marieke de Kam, Joke Baas, Adam Cohen, Joop van Gerven
INTRODUCTION: Centrally-acting acutely anxiolytic drugs, like benzodiazepines, barbiturates and gabapentinoids, affect various central nervous system (CNS) functions, which reflect not only their anxiolytic effects but also neuropsychological side-effects. To validate the pharmacodynamic biomarkers for GABA-ergic anxiolytics, this study determined the pharmacodynamics of two anxiolytics and a non-anxiolytic control and linked them to their anxiolytic and sedative effects, during an anxiety-challenge study day...
December 6, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27922089/elderly-patients-have-an-altered-gut-brain-axis-regardless-of-the-presence-of-cirrhosis
#4
Jasmohan S Bajaj, Vishwadeep Ahluwalia, Joel L Steinberg, Sarah Hobgood, Peter A Boling, Michael Godschalk, Saima Habib, Melanie B White, Andrew Fagan, Edith A Gavis, Dinesh Ganapathy, Phillip B Hylemon, Karen E Stewart, Raffi Keradman, Eric J Liu, Jessica Wang, Patrick M Gillevet, Masoumeh Sikaroodi, F Gerard Moeller, James B Wade
Cognitive difficulties manifested by the growing elderly population with cirrhosis could be amnestic (memory-related) or non-amnestic (memory-unrelated). The underlying neuro-biological and gut-brain changes are unclear in this population. We aimed to define gut-brain axis alterations in elderly cirrhotics compared to non-cirrhotic individuals based on presence of cirrhosis and on neuropsychological performance. Age-matched outpatients with/without cirrhosis underwent cognitive testing (amnestic/non-amnestic domains), quality of life (HRQOL), multi-modal MRI (fMRI go/no-go task, volumetry and MR spectroscopy), blood (inflammatory cytokines) and stool collection (for microbiota)...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27921860/effects-of-cognitive-remediation-therapy-on-neurocognition-and-negative-symptoms-in-schizophrenia-an-italian-naturalistic-study
#5
Mariangela Lanfredi, Giacomo Deste, Clarissa Ferrari, Stefano Barlati, Laura Rosa Magni, Roberta Rossi, Luca de Peri, Marco Bonomi, Giuseppe Rossi, Antonio Vita
INTRODUCTION: Cognitive remediation therapy (CRT) has been reported to positively affect neurocognitive processes among patients with schizophrenia; however, the degree to which changes in cognition is linked to improved clinical symptoms, remains poorly understood. The current study aimed to investigate whether cognitive gains were associated to improvements in negative symptoms' severity in patients with schizophrenia living in two Italian psychiatric facilities. METHODS: Patients with a diagnosis of schizophrenia were consecutively assigned to CRT (n = 33) and compared with an historical control group (n = 28)...
December 6, 2016: Cognitive Neuropsychiatry
https://www.readbyqxmd.com/read/27921212/editorial-comment-for-neuropsychological-improvement-after-posterior-fossa-arachnoid-cyst-drainage-cnsy-d-16-00311
#6
Knut Wester
No abstract text is available yet for this article.
December 5, 2016: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/27920795/donepezil-enhances-frontal-functional-connectivity-in-alzheimer-s-disease-a-pilot-study
#7
Ludovica Griffanti, Gordon K Wilcock, Natalie Voets, Guendalina Bonifacio, Clare E Mackay, Mark Jenkinson, Giovanna Zamboni
BACKGROUND: We have previously shown that increased resting-state functional magnetic resonance imaging (fMRI)-based functional connectivity (FC) within the frontal resting-state networks in Alzheimer's disease (AD) patients reflects residual, possibly compensatory, function. This suggests that symptomatic treatments should aim to enhance FC specifically in these networks. METHODS: 18 patients with probable AD underwent brain MRI and neuropsychological assessment at baseline and after 12 weeks of treatment with donepezil...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27920794/dance-experience-and-associations-with-cortical-gray-matter-thickness-in-the-aging-population
#8
Shai Porat, Naira Goukasian, Kristy S Hwang, Theodore Zanto, Triet Do, Jonathan Pierce, Shantanu Joshi, Ellen Woo, Liana G Apostolova
INTRODUCTION: We investigated the effect dance experience may have on cortical gray matter thickness and cognitive performance in elderly participants with and without mild cognitive impairment (MCI). METHODS: 39 cognitively normal and 48 MCI elderly participants completed a questionnaire regarding their lifetime experience with music, dance, and song. Participants identified themselves as either dancers or nondancers. All participants received structural 1.5-tesla MRI scans and detailed clinical and neuropsychological evaluations...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27920793/cognitive-decline-in-patients-with-chronic-hydrocephalus-and-normal-aging-growing-into-deficits
#9
Marlijn H de Beer, Philip Scheltens
BACKGROUND/AIM: To explore the theory of 'growing into deficits', a concept known from developmental neurology, in a series of cases with chronic hydrocephalus (CH). METHODS: Patients were selected from the Amsterdam Dementia Cohort and underwent extensive dementia screening. RESULTS: Twelve patients with CH were selected, in whom Alzheimer's disease was considered unlikely, based on biomarker information and follow-up. Mean Mini-Mental State Examination score was 24 (range 7-30)...
September 2016: Dementia and Geriatric Cognitive Disorders Extra
https://www.readbyqxmd.com/read/27920670/two-visual-pathways-in-primates-based-on-sampling-of-space-exploitation-and-exploration-of-visual-information
#10
Bhavin R Sheth, Ryan Young
Evidence is strong that the visual pathway is segregated into two distinct streams-ventral and dorsal. Two proposals theorize that the pathways are segregated in function: The ventral stream processes information about object identity, whereas the dorsal stream, according to one model, processes information about either object location, and according to another, is responsible in executing movements under visual control. The models are influential; however recent experimental evidence challenges them, e.g., the ventral stream is not solely responsible for object recognition; conversely, its function is not strictly limited to object vision; the dorsal stream is not responsible by itself for spatial vision or visuomotor control; conversely, its function extends beyond vision or visuomotor control...
2016: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/27920638/interstitial-1q21-1-microdeletion-is-associated-with-severe-skeletal-anomalies-dysmorphic-face-and-moderate-intellectual-disability
#11
Bruno F Gamba, Roseli M Zechi-Ceide, Nancy M Kokitsu-Nakata, Siulan Vendramini-Pittoli, Carla Rosenberg, Ana C V Krepischi Santos, Lucilene Ribeiro-Bicudo, Antonio Richieri-Costa
We report on a Brazilian patient with a 1.7-Mb interstitial microdeletion in chromosome 1q21.1. The phenotypic characteristics include microcephaly, a peculiar facial gestalt, cleft lip/palate, and multiple skeletal anomalies represented by malformed phalanges, scoliosis, abnormal modeling of vertebral bodies, hip dislocation, abnormal acetabula, feet anomalies, and delayed neuropsychological development. Deletions reported in this region are clinically heterogeneous, ranging from subtle phenotypic manifestations to severe congenital heart defects and/or neurodevelopmental findings...
November 2016: Molecular Syndromology
https://www.readbyqxmd.com/read/27920510/the-clock-in-the-box-a-brief-cognitive-screen-is-associated-with-failure-to-return-home-in-an-elderly-hospitalized-sample
#12
Colleen E Jackson, Laura J Grande, Kelly Doherty, Elizabeth Archambault, Brittany Kelly, Jane A Driver, William P Milberg, Regina McGlinchey, James L Rudolph
PURPOSE: Cognitive screening upon hospital admission can provide important information about the patient's ability to process information during the inpatient stay. The Clock-in-the-Box (CIB) is a rapidly administered cognitive screening measure which has been previously validated with cognitive screening and neuropsychological assessments. The purpose of this study is to demonstrate the predictive validity of the CIB for discharge location among a sample of older medical inpatients. PATIENTS AND METHODS: Hospitalized Veterans (N=218), aged 55 years and older, were recruited on the day after admission after they gave their consent...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27919489/cognitive-event-related-potentials-in-multiple-sclerosis-correlation-with-mri-and-neuropsychological-findings
#13
Vasilios K Kimiskidis, Vasileios Papaliagkas, Kyriaki Sotirakoglou, Zoi K Kouvatsou, Victoria K Kapina, Efrosini Papadaki, Vaia Tsimourtou, Elvira Masoura, Dimitrios A Kazis, Sotirios Papayiannopoulos, Triantafyllos Geroukis, Sevasti Bostanjopoulou
BACKGROUND: Cognitive event-related potentials (ERPs) have been previously correlated with T2 lesion load (Τ2LL) in patients with multiple sclerosis (MS). It is currently unknown, however, whether ERPs also correlate with brain atrophy or the presence of T1 hypointense lesions ("black holes") which reflect tissue destruction and axonal loss. The primary aim of the current study is to explore the effect of neuroradiological parameters such as brain atrophy, T1 and T2 lesion load on auditory ERPs in MS patients...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27919482/the-association-of-cognitive-impairment-with-gray-matter-atrophy-and-cortical-lesion-load-in-clinically-isolated-syndrome
#14
Sevda Diker, Arzu Ceylan Has, Aslı Kurne, Rahşan Göçmen, Kader Karlı Oğuz, Rana Karabudak
BACKGROUND: Multiple sclerosis can impair cognition from the early stages and has been shown to be associated with gray matter damage in addition to white matter pathology. OBJECTIVES: To investigate the profile of cognitive impairment in clinically isolated syndrome (CIS), and the contribution of cortical inflammation, cortical and deep gray matter atrophy, and white matter lesions to cognitive decline. METHODS: Thirty patients with clinically isolated syndrome and twenty demographically- matched healthy controls underwent neuropsychologic assessment through the Rao Brief Repeatable Battery, and brain magnetic resonance imaging with double inversion recovery using a 3T scanner...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27919414/early-diagnosis-in-patients-with-transthyretin-familial-amyloid-polyneuropathy-a-comparative-study
#15
Manuel Raya-Cruz, Juan Buades-Reines, Cristina Gállego-Lezáun, Tomás Ripoll-Vera, Mercedes Usón-Martín, Eugenia Cisneros-Barroso
INTRODUCTION AND OBJECTIVE: Transthyretin-associated familial amyloid polyneuropathy (TTR-FAP) is a disease caused by the deposit of abnormal transthyretin on tissues, mainly nerves. Small nerve fibers are altered earlier during the course of the disease; hence, detection of their involvement may have serious consequences on the natural history of disease. METHODS: A cross-sectional, observational study, was carried out on symptomatic patients, involving the conduct of several tests for small nerve fibers: Vibration, Touch Pressure (TP) and Heat Pain (HP)...
December 2, 2016: Medicina Clínica
https://www.readbyqxmd.com/read/27919115/febrile-infection-related-epilepsy-syndrome-clinical-review-and-hypotheses-of-epileptogenesis
#16
Andreas van Baalen, Annamaria Vezzani, Martin Häusler, Gerhard Kluger
Febrile infection-related epilepsy syndrome (FIRES, AERRPS, or DESC) is one of the most severe, mostly irreversible, and presumably immune-mediated epileptic encephalopathies affecting healthy children. Refractory status epilepticus or a cluster of seizures start a few days after the onset of an acute febrile illness; however, encephalitis cannot be proved. Sequelae of FIRES are drug-resistant epilepsy and neuropsychological impairments occurring without latency. Clinical knowledge is limited because FIRES is sporadic and extremely rare...
December 5, 2016: Neuropediatrics
https://www.readbyqxmd.com/read/27918874/effects-of-the-natural-%C3%AE-carboline-alkaloid-harmine-a-main-constituent-of-ayahuasca-in-memory-and-in-the-hippocampus-a-systematic-literature-review-of-preclinical-studies
#17
Rafael G Dos Santos, Jaime E C Hallak
Harmine is a natural β-carboline alkaloid found in several botanical species, such as the Banisteriopsis caapi vine used in the preparation of the hallucinogenic beverage ayahuasca and the seeds of Syrian rue (Peganum harmala). Preclinical studies suggest that harmine may have neuroprotective and cognitive-enhancing effects, and retrospective/observational investigations of the mental health of long-term ayahuasca users suggest that prolonged use of this harmine-rich hallucinogen is associated with better neuropsychological functioning...
December 5, 2016: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/27917464/relation-of-dysglycemia-to-structural-brain-changes-in-a-multiethnic-elderly-cohort
#18
Christiane Reitz, Vanessa A Guzman, Atul Narkhede, Charles DeCarli, Adam M Brickman, José A Luchsinger
OBJECTIVES: Abnormally high glucose levels (dysglycemia) increase with age. Epidemiological studies suggest that dysglycemia is a risk factor for cognitive impairment but the underlying pathophysiological mechanisms remain unclear. The objective of this study was to examine the relation of dysglycemia clinical categories (normal glucose tolerance (NGT), pre-diabetes, undiagnosed diabetes, known diabetes) with brain structure in older adults. We also assessed the relation between dysglycemia and cognitive performance...
December 5, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27917450/the-short-term-effect-of-liver-transplantation-on-the-low-frequency-fluctuation-of-brain-activity-in-cirrhotic-patients-with-and-without-overt-hepatic-encephalopathy
#19
Gaoyan Zhang, Yue Cheng, Wen Shen, Baolin Liu, Lixiang Huang, Shuangshuang Xie
Previous neuropsychological studies have demonstrated that liver transplantation (LT) is an effective method for improving the cognitive function of cirrhotic patients. However, the neural basis underlying the effects of LT is still unclear. Neuroimaging studies investigating changes in brain structures or functional networks mainly focus on patients without overt hepatic encephalopathy (HE). In this study, we recruited patients with and without overt HE and studied alterations in resting-state brain activity by quantizing the amplitude of low-frequency fluctuation (ALFF) before and 1 month after LT to study the short-term effect of LT in each group...
December 5, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27915588/reversible-cerebral-vasoconstriction-syndrome
#20
Michael Perdices, Geoffrey Herkes
Reversible cerebral vasoconstriction syndrome (RCVS) is a relatively rare, non-progressive angiopathy frequently heralded by severe thunderclap headache. It is characterised by vasoconstriction of cerebral arteries which usually resolves within three months of onset. Transient focal neurological signs may occur, and persistent deficits associated with haemorrhagic comorbidities have been reported in a small percentage of individuals. In this paper we report the case of RH, a 36-year-old woman who presented at a university teaching hospital in Sydney with a clinical history and radiological evidence consistent with RCVS...
December 5, 2016: Neuropsychological Rehabilitation
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