keyword
MENU ▼
Read by QxMD icon Read
search

neuroimage

keyword
https://www.readbyqxmd.com/read/29055240/automatic-processing-of-emotional-facial-expressions-as-a-function-of-social-anhedonia
#1
Vivien Günther, Juliane Zimmer, Anette Kersting, Karl-Titus Hoffmann, Donald Lobsien, Thomas Suslow
Anhedonia is an important feature of major depression and schizophrenia-spectrum disorders. Few neuroimaging studies have investigated neural alterations in high anhedonia, isolated from other psychopathological variables, by including only participants without clinical diagnoses. The present study examined healthy individuals scoring high (N = 18) vs. low (N = 19) in social anhedonia, who were carefully selected from a sample of N = 282 participants. To examine differences in automatic brain responses to social-affective stimuli between high vs...
October 10, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29054778/validation-of-prognostic-models-to-predict-early-mortality-in-spontaneous-intracerebral-hemorrhage-a-cross-sectional-evaluation-of-a-singapore-stroke-database
#2
Julian Xinguang Han, Angela An Qi See, Nicolas Kon Kam King
OBJECTIVE: Numerous scores have been developed for prognostication of outcomes in intracerebral hemorrhage (ICH). Prediction models must be validated internally and externally before they are considered widely applicable. We aim to independently externally validate and compare three prediction models (ICH score, ICH grading scale (ICH-GS) and simplified ICH (sICH)) in our population, which has not been previously done. METHODS: We reviewed 1338 patients with spontaneous ICH consecutively admitted to the National Neuroscience Institute (NNI), Singapore, between January 2009 and November 2013...
October 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29054735/associations-between-neural-reward-processing-and-binge-eating-among-adolescent-girls
#3
Lindsay P Bodell, Jennifer E Wildes, Andrea B Goldschmidt, Rachel Lepage, Kate E Keenan, Amanda E Guyer, Alison E Hipwell, Stephanie D Stepp, Erika E Forbes
PURPOSE: Neuroimaging studies suggest that altered brain responses to food-related cues in reward-sensitive regions characterize individuals who experience binge-eating episodes. However, the absence of longitudinal data limits the understanding of whether reward-system alterations increase vulnerability to binge eating, as theorized in models of the development of this behavior. METHODS: Adolescent girls (N = 122) completed a functional magnetic resonance imaging monetary reward task at age 16 years as part of an ongoing longitudinal study...
October 17, 2017: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
https://www.readbyqxmd.com/read/29054427/common-brain-networks-for-distinct-deficits-in-visual-neglect-a-combined-structural-and-tractography-mri-approach
#4
Monica N Toba, Raffaella Migliaccio, Bénédicte Batrancourt, Clémence Bourlon, Christophe Duret, Pascale Pradat-Diehl, Bruno Dubois, Paolo Bartolomeo
Visual neglect is a heterogeneous, multi-component syndrome resulting from right hemisphere damage. Neglect patients do not pay attention to events occurring on their left side, and have a poor functional outcome. The intra-hemispheric location of lesions producing neglect is debated, because studies using different methods reported different locations in the grey matter and in the white matter of the right hemisphere. These reported locations show various patterns of overlapping with the fronto-parietal attention networks demonstrated by functional neuroimaging...
October 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29054365/corrigendum-to-lateralization-of-resting-state-networks-and-relationship-to-age-and-gender-neuroimage-104-2015-310-325
#5
O Agcaoglu, R Miller, A R Mayer, K Hugdahl, V D Calhoun
No abstract text is available yet for this article.
October 17, 2017: NeuroImage
https://www.readbyqxmd.com/read/29054018/isolated-aphasia-in-the-emergency-department-the-likelihood-of-ischemia-is-low
#6
Gabriel Casella, Rafael H Llinas, Elisabeth B Marsh
OBJECTIVE: Aphasia is a common presentation of ischemic stroke, often diagnosed in the acute setting using tools such as the NIH Stroke Scale (NIHSS). Due to the vascular distribution of the middle cerebral artery, it is often accompanied by other symptoms such as weakness, sensory loss, or visual changes. Isolated aphasia due to ischemia is possible, but language problems mimicking aphasia syndromes can also be seen with other diagnoses such as metabolic abnormalities or dementia. In this study, we determine the incidence of aphasia-only strokes using the NIHSS, and factors associated with a higher likelihood of ischemia...
October 16, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29053885/cortical-superficial-siderosis-and-acute-convexity-subarachnoid-hemorrhage-in-cerebral-amyloid-angiopathy
#7
Nicolas Raposo, Lionel Calviere, Vanessa Cazzola, Mélanie Planton, Sofia Patsoura, Matthieu Wargny, Jean François Albucher, Agnès Sommet, Jean Marc Olivot, François Chollet, Jérémie Pariente, Fabrice Bonneville, Alain Viguier
BACKGROUND: Acute convexity subarachnoid hemorrhage (cSAH) and cortical superficial siderosis (cSS) are neuroimaging markers of cerebral amyloid angiopathy (CAA) that may arise through similar mechanisms. We sought to compare the prevalence of cSS between patients with CAA presenting with acute cSAH versus lobar intracerebral hemorrhage (ICH), and to explore the physiopathology of cSS by examining neuroimaging associations. METHODS: We retrospectively analyzed data from 116 consecutive patients with probable CAA (mean age, 77...
October 20, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29053860/clinicopathological-correlations-in-behavioural-variant-frontotemporal-dementia
#8
David C Perry, Jesse A Brown, Katherine L Possin, Samir Datta, Andrew Trujillo, Anneliese Radke, Anna Karydas, John Kornak, Ana C Sias, Gil D Rabinovici, Maria Luisa Gorno-Tempini, Adam L Boxer, Mary De May, Katherine P Rankin, Virginia E Sturm, Suzee E Lee, Brandy R Matthews, Aimee W Kao, Keith A Vossel, Maria Carmela Tartaglia, Zachary A Miller, Sang Won Seo, Manu Sidhu, Stephanie E Gaus, Alissa L Nana, Jose Norberto S Vargas, Ji-Hye L Hwang, Rik Ossenkoppele, Alainna B Brown, Eric J Huang, Giovanni Coppola, Howard J Rosen, Daniel Geschwind, John Q Trojanowski, Lea T Grinberg, Joel H Kramer, Bruce L Miller, William W Seeley
Accurately predicting the underlying neuropathological diagnosis in patients with behavioural variant frontotemporal dementia (bvFTD) poses a daunting challenge for clinicians but will be critical for the success of disease-modifying therapies. We sought to improve pathological prediction by exploring clinicopathological correlations in a large bvFTD cohort. Among 438 patients in whom bvFTD was either the top or an alternative possible clinical diagnosis, 117 had available autopsy data, including 98 with a primary pathological diagnosis of frontotemporal lobar degeneration (FTLD), 15 with Alzheimer's disease, and four with amyotrophic lateral sclerosis who lacked neurodegenerative disease-related pathology outside of the motor system...
October 6, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053789/voodoo-surgery-the-distinct-challenges-of-functional-neuroimaging-in-clinical-neurology
#9
Trevor T-J Chong
No abstract text is available yet for this article.
October 17, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053782/seizure-onset-zone-localization-using-postictal-hypoperfusion-detected-by-arterial-spin-labelling-mri
#10
Ismael Gaxiola-Valdez, Shaily Singh, Tefani Perera, Sherry Sandy, Emmy Li, Paolo Federico
Neurological dysfunction following epileptic seizures is a well-recognized phenomenon. Several potential mechanisms have been suggested to explain postictal dysfunction, with alteration in cerebral blood flow being one possibility. These vascular disturbances may be long lasting and localized to brain areas involved in seizure generation and propagation, as supported by both animal and human studies. Therefore, measuring perfusion changes in the postictal period may help localize the seizure onset zone. Arterial spin labelling is a non-invasive, rapid and reproducible magnetic resonance imaging technique that measures cerebral perfusion...
September 28, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053778/influence-of-cerebrovascular-disease-on-brain-networks-in-prodromal-and-clinical-alzheimer-s-disease
#11
Joanna Su Xian Chong, Siwei Liu, Yng Miin Loke, Saima Hilal, Mohammad Kamran Ikram, Xin Xu, Boon Yeow Tan, Narayanaswamy Venketasubramanian, Christopher Li-Hsian Chen, Juan Zhou
Network-sensitive neuroimaging methods have been used to characterize large-scale brain network degeneration in Alzheimer's disease and its prodrome. However, few studies have investigated the combined effect of Alzheimer's disease and cerebrovascular disease on brain network degeneration. Our study sought to examine the intrinsic functional connectivity and structural covariance network changes in 235 prodromal and clinical Alzheimer's disease patients with and without cerebrovascular disease. We focused particularly on two higher-order cognitive networks-the default mode network and the executive control network...
September 19, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053771/the-cerebellum-in-alzheimer-s-disease-evaluating-its-role-in-cognitive-decline
#12
Heidi I L Jacobs, David A Hopkins, Helen C Mayrhofer, Emiliano Bruner, Fred W van Leeuwen, Wijnand Raaijmakers, Jeremy D Schmahmann
The cerebellum has long been regarded as essential only for the coordination of voluntary motor activity and motor learning. Anatomical, clinical and neuroimaging studies have led to a paradigm shift in the understanding of the cerebellar role in nervous system function, demonstrating that the cerebellum appears integral also to the modulation of cognition and emotion. The search to understand the cerebellar contribution to cognitive processing has increased interest in exploring the role of the cerebellum in neurodegenerative and neuropsychiatric disorders...
July 28, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053075/machine-learning-applied-to-neuroimaging-for-diagnosis-of-adult-classic-chiari-malformation-role-of-the-basion-as-a-key-morphometric-indicator
#13
Aintzane Urbizu, Bryn A Martin, Dulce Moncho, Alex Rovira, Maria A Poca, Juan Sahuquillo, Alfons Macaya, Malena I Español
OBJECTIVE The current diagnostic criterion for Chiari malformation Type I (CM-I), based on tonsillar herniation (TH), includes a diversity of patients with amygdalar descent that may be caused by a variety of factors. In contrast, patients presenting with an overcrowded posterior cranial fossa, a key characteristic of the disease, may remain misdiagnosed if they have little or no TH. The objective of the present study was to use machine-learning classification methods to identify morphometric measures that help discern patients with classic CM-I to improve diagnosis and treatment and provide insight into the etiology of the disease...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29052799/treatment-and-outcome-of-subdural-hematoma-in-patients-with-spontaneous-intracranial-hypotension-a-report-of-35-cases
#14
Enrico Ferrante, Fabio Rubino, Federica Beretta, Caroline Regna-Gladin, M Mirko Ferrante
Spontaneous intracranial hypotension (SIH) is characterized by orthostatic headache, low CSF pressure and diffuse pachymeningeal enhancement on brain MRI. SIH results from spontaneous CSF leakage leading to brain sag. Sometimes, tearing of bridging veins may produce subdural hematomas (SDHs). Patients with SDH were identified retrospectively from 212 consecutive SIH patients. Data were collected on demographics, clinical courses, neuroimaging findings, treatment and outcome of SDH. Thirty-five patients (16%), (6 women, 29 men; aged 33-68; mean, 50 years) with SDH were recruited...
October 20, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/29052617/adhd-smoking-withdrawal-and-inhibitory-control-results-of-a-neuroimaging-study-with-methylphenidate-challenge
#15
Maggie M Sweitzer, Scott H Kollins, Rachel V Kozink, Matt Hallyburton, Joseph English, Merideth A Addicott, Jason A Oliver, F Joseph McClernon
Smoking withdrawal negatively impacts inhibitory control, and these effects are greater for smokers with pre-existing attention problems, such as attention deficit/hyperactivity disorder (ADHD). The current study preliminarily evaluated changes in inhibitory control-related behavior and brain activation during smoking withdrawal among smokers with ADHD. Moreover, we investigated the role of catecholamine transmission in these changes by examining effects of 40 mg methylphenidate (MPH) administration. Adult daily smokers with (n=17) and without (n=20) ADHD completed fMRI scanning under each of three conditions: (a) smoking as usual+placebo; (b) 24 hr smoking abstinence+placebo and (c) 24 hr smoking abstinence+MPH...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29051842/is-there-a-premotor-phase-of-essential-tremor
#16
REVIEW
Abhishek Lenka, Julian Benito-León, Elan D Louis
BACKGROUND: Essential tremor (ET) is the most common tremor disorder. In addition to its hallmark feature, kinetic tremor of the upper limbs, patients may have a number of non-motor symptoms and signs (NMS). Several lines of evidence suggest that ET is a neurodegenerative disorder and certain NMS may antedate the onset of tremor. This article comprehensively reviews the evidence for the existence of a "premotor phase" of ET, and discusses plausible biological explanations and implications...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/29051745/traumatic-brain-injury-severity-neuropathophysiology-and-clinical-outcome-insights-from-multimodal-neuroimaging
#17
Andrei Irimia, Sheng-Yang Matthew Goh, Adam C Wade, Kavi Patel, Paul M Vespa, John D Van Horn
BACKGROUND: The relationship between the acute clinical presentation of patients with traumatic brain injury (TBI), long-term changes in brain structure prompted by injury and chronic functional outcome is insufficiently understood. In this preliminary study, we investigate how acute Glasgow coma score (GCS) and epileptic seizure occurrence after TBIs are statistically related to functional outcome (as quantified using the Glasgow Outcome Score) and to the extent of cortical thinning observed 6 months after the traumatic event...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29051730/dynamical-graph-theory-networks-methods-for-the-analysis-of-sparse-functional-connectivity-networks-and-for-determining-pinning-observability-in-brain-networks
#18
Anke Meyer-Bäse, Rodney G Roberts, Ignacio A Illan, Uwe Meyer-Bäse, Marc Lobbes, Andreas Stadlbauer, Katja Pinker-Domenig
Neuroimaging in combination with graph theory has been successful in analyzing the functional connectome. However almost all analysis are performed based on static graph theory. The derived quantitative graph measures can only describe a snap shot of the disease over time. Neurodegenerative disease evolution is poorly understood and treatment strategies are consequently only of limited efficiency. Fusing modern dynamic graph network theory techniques and modeling strategies at different time scales with pinning observability of complex brain networks will lay the foundation for a transformational paradigm in neurodegnerative diseases research regarding disease evolution at the patient level, treatment response evaluation and revealing some central mechanism in a network that drives alterations in these diseases...
2017: Frontiers in Computational Neuroscience
https://www.readbyqxmd.com/read/29051027/the-conception-of-the-abcd-study-from-substance-use-to-a-broad-nih-collaboration
#19
REVIEW
Nora D Volkow, George F Koob, Robert T Croyle, Diana W Bianchi, Joshua A Gordon, Walter J Koroshetz, Eliseo J Pérez-Stable, William T Riley, Michele H Bloch, Kevin Conway, Bethany G Deesds, Gayathri J Dowling, Steven Grant, Katia D Howlett, John A Matochik, Glen D Morgan, Margaret M Murray, Antonio Noronha, Catherine Y Spong, Eric M Wargo, Kenneth R Warren, Susan R B Weiss
Adolescence is a time of dramatic changes in brain structure and function, and the adolescent brain is highly susceptible to being altered by experiences like substance use. However, there is much we have yet to learn about how these experiences influence brain development, how they promote or interfere with later health outcomes, or even what healthy brain development looks like. A large longitudinal study beginning in early adolescence could help us understand the normal variability in adolescent brain and cognitive development and tease apart the many factors that influence it...
October 10, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/29050825/neuroimaging-findings-in-infantile-pompe-patients-treated-with-enzyme-replacement-therapy
#20
Paul T McIntosh, Lisa D Hobson-Webb, Zoheb B Kazi, Sean N Prater, Suhrad G Banugaria, Stephanie Austin, Raymond Wang, David S Enterline, Donald P Frush, Priya S Kishnani
BACKGROUND: Recombinant human acid α-glucosidase (rhGAA) enzyme replacement therapy (ERT) has prolonged survival in infantile Pompe disease (IPD), but has unmasked central nervous system (CNS) changes. METHODS: Brain imaging, consisting of computed tomography (CT) and/or magnetic resonance imaging (MRI), was performed on 23 patients with IPD (17 CRIM-positive, 6 CRIM-negative) aged 2-38months. Most patients had baseline neuroimaging performed prior to the initiation of ERT...
October 13, 2017: Molecular Genetics and Metabolism
keyword
keyword
65315
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"