keyword
MENU ▼
Read by QxMD icon Read
search

neuroimages

keyword
https://www.readbyqxmd.com/read/28092591/relational-regularized-discriminative-sparse-learning-for-alzheimer-s-disease-diagnosis
#1
Baiying Lei, Peng Yang, Tianfu Wang, Siping Chen, Dong Ni
Accurate identification and understanding informative feature is important for early Alzheimer's disease (AD) prognosis and diagnosis. In this paper, we propose a novel discriminative sparse learning method with relational regularization to jointly predict the clinical score and classify AD disease stages using multimodal features. Specifically, we apply a discriminative learning technique to expand the class-specific difference and include geometric information for effective feature selection. In addition, two kind of relational information are incorporated to explore the intrinsic relationships among features and training subjects in terms of similarity learning...
January 16, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28092055/differentiating-emotional-processing-and-attention-in-psychopathy-with-functional-neuroimaging
#2
Nathaniel E Anderson, Vaughn R Steele, J Michael Maurer, Vikram Rao, Michael R Koenigs, Jean Decety, David S Kosson, Vince D Calhoun, Kent A Kiehl
Individuals with psychopathy are often characterized by emotional processing deficits, and recent research has examined the specific contexts and cognitive mechanisms that underlie these abnormalities. Some evidence suggests that abnormal features of attention are fundamental to emotional deficits in persons with psychopathy, but few studies have demonstrated the neural underpinnings responsible for such effects. Here, we use functional neuroimaging to examine attention-emotion interactions among incarcerated individuals (n = 120) evaluated for psychopathic traits using the Hare Psychopathy Checklist-Revised (PCL-R)...
January 16, 2017: Cognitive, Affective & Behavioral Neuroscience
https://www.readbyqxmd.com/read/28092022/relevance-of-neuroimaging-for-neurocognitive-and-behavioral-outcome-after-pediatric-traumatic-brain-injury
#3
Marsh Königs, Petra Jw Pouwels, L W Ernest van Heurn, Roel Bakx, R Jeroen Vermeulen, J Carel Goslings, Bwee Tien Poll-The, Marleen van der Wees, Coriene E Catsman-Berrevoets, Jaap Oosterlaan
This study aims to (1) investigate the neuropathology of mild to severe pediatric TBI and (2) elucidate the predictive value of conventional and innovative neuroimaging for functional outcome. Children aged 8-14 years with trauma control (TC) injury (n = 27) were compared to children with mild TBI and risk factors for complicated TBI (mild(RF+), n = 20) or moderate/severe TBI (n = 17) at 2.8 years post-injury. Neuroimaging measures included: acute computed tomography (CT), volumetric analysis on post-acute conventional T1-weighted magnetic resonance imaging (MRI) and post-acute diffusion tensor imaging (DTI, analyzed using tract-based spatial statistics and voxel-wise regression)...
January 14, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28089904/retuning-brain-circuitry-to-treat-mental-illness-the-role-of-functional-neuroimaging-commentary-for-the-special-issue-mechanisms-of-change
#4
https://www.readbyqxmd.com/read/28089652/hippocampal-prefrontal-connectivity-as-a-translational-phenotype-for-schizophrenia
#5
REVIEW
Florian Bähner, Andreas Meyer-Lindenberg
Finding novel biological targets in psychiatry has been difficult, partly because current diagnostic categories are not defined by pathophysiology and difficult to model in animals. The study of species-conserved systems-level mechanisms implicated in psychiatric disease could be a promising strategy to address some of these difficulties. Altered hippocampal-prefrontal (HC-PFC) connectivity during working memory (WM) processing is a candidate for such a translational phenotype as it has been repeatedly associated with impaired cognition in schizophrenia patients and animal models for psychiatric risk factors...
January 12, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28089079/repeated-subarachnoid-administrations-of-autologous-mesenchymal-stromal-cells-supported-in-autologous-plasma-improve-quality-of-life-in-patients-suffering-incomplete-spinal-cord-injury
#6
Jesús Vaquero, Mercedes Zurita, Miguel A Rico, Celia Bonilla, Concepción Aguayo, Cecilia Fernández, Noemí Tapiador, Marta Sevilla, Carlos Morejón, Jesús Montilla, Francisco Martínez, Esperanza Marín, Salvador Bustamante, David Vázquez, Joaquín Carballido, Alicia Rodríguez, Paula Martínez, Coral García, Mercedes Ovejero, Marta V Fernández
BACKGROUND AIMS: Cell therapy with mesenchymal stromal cells (MSCs) offers new hope for patients suffering from spinal cord injury (SCI). METHODS: Ten patients with established incomplete SCI received four subarachnoid administrations of 30 × 10(6) autologous bone marrow MSCs, supported in autologous plasma, at months 1, 4, 7 and 10 of the study, and were followed until the month 12. Urodynamic, neurophysiological and neuroimaging studies were performed at months 6 and 12, and compared with basal studies...
January 6, 2017: Cytotherapy
https://www.readbyqxmd.com/read/28088604/alba-screening-instrument-asi-a-brief-screening-tool-for-lewy-body-dementia
#7
M M Garcia Basalo, M C Fernandez, M Ojea Quintana, J I Rojas, M J Garcia Basalo, E Bogliotti, N Campora, M Fernandez, W Berrios, E Cristiano, A Golimstok
BACKGROUND: Early detection of neurodegenerative diseases is essential for treatment and proper care of these patients. Screening tools available today are effective for several types of dementia. However, there is no one specific for Lewy Body Dementia (LBD). OBJECTIVES: The aim of this paper is to present a tool for early detection of LBD, accessible even for non-medical staff. METHODS: We stratified subjects (MMSE>20) into four groups: health controls (HC), Mild Cognitive Impairment (MCI), LBD and other dementias (Alzheimer and vascular)...
January 5, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28088485/semantic-attributes-are-encoded-in-human-electrocorticographic-signals-during-visual-object-recognition
#8
Kyle Rupp, Matthew Roos, Griffin Milsap, Carlos Caceres, Christopher Ratto, Mark Chevillet, Nathan E Crone, Michael Wolmetz
Non-invasive neuroimaging studies have shown that semantic category and attribute information are encoded in neural population activity. Electrocorticography (ECoG) offers several advantages over non-invasive approaches, but the degree to which semantic attribute information is encoded in ECoG responses is not known. We recorded ECoG while patients named objects from 12 semantic categories and then trained high-dimensional encoding models to map semantic attributes to spectral-temporal features of the task-related neural responses...
January 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28088041/the-role-of-the-ifg-and-psts-in-syntactic-prediction-evidence-from-a-parametric-study-of-hierarchical-structure-in-fmri
#9
William Matchin, Christopher Hammerly, Ellen Lau
Sentences encode hierarchical structural relations among words. Several neuroimaging experiments aiming to localize combinatory operations responsible for creating this structure during sentence comprehension have contrasted short, simple phrases and sentences to unstructured controls. Some of these experiments have revealed activation in the left inferior frontal gyrus (IFG) and posterior superior temporal sulcus (pSTS), associating these regions with basic syntactic combination. However, the wide variability of these effects across studies raises questions about this interpretation...
December 18, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28087827/neuropsychological-outcome-following-frontal-lobectomy-for-pharmacoresistant-epilepsy-in-adults
#10
Robyn M Busch, Darlene P Floden, Lisa Ferguson, Shamseldeen Mahmoud, Audrina Mullane, Stephen Jones, Lara Jehi, William Bingaman, Imad M Najm
OBJECTIVE: This retrospective cohort study characterized cognitive and motor outcomes in a large sample of adults who underwent frontal lobe resections for treatment of pharmacoresistant epilepsy. METHODS: Ninety patients who underwent unilateral frontal lobe resection for epilepsy (42 language-dominant hemisphere/48 nondominant hemisphere) between 1989 and 2014 completed comprehensive preoperative and postoperative neuropsychological evaluations that included measures of verbal and nonverbal intellectual functioning, attention/working memory, processing speed, language, executive functioning, verbal and visual memory, and motor functioning...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087823/prognosis-of-carotid-dissecting-aneurysms-results-from-cadiss-and-a-systematic-review
#11
Susanna C Larsson, Alice King, Jeremy Madigan, Christopher Levi, John W Norris, Hugh S Markus
OBJECTIVE: To determine the natural history of dissecting aneurysm (DA) and whether DA is associated with an increased recurrent stroke risk and whether type of antithrombotic drugs (antiplatelets vs anticoagulants) modifies the persistence or development of DA. METHODS: We included 264 patients with extracranial cervical artery dissection (CAD) from the Cervical Artery Dissection in Stroke Study (CADISS), a multicenter prospective study that compared antiplatelet with anticoagulation therapy...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087721/joubert-syndrome-neuroimaging-findings-in-110-patients-in-correlation-with-cognitive-function-and-genetic-cause
#12
Andrea Poretti, Joseph Snow, Angela C Summers, Aylin Tekes, Thierry A G M Huisman, Nafi Aygun, Kathryn A Carson, Dan Doherty, Melissa A Parisi, Camilo Toro, Deniz Yildirimli, Meghana Vemulapalli, Jim C Mullikin, Andrew R Cullinane, Thierry Vilboux, William A Gahl, Meral Gunay-Aygun
BACKGROUND: Joubert syndrome is a clinically and genetically heterogeneous ciliopathy. Neuroimaging findings have not been systematically evaluated in a large cohort of patients with Joubert syndrome in correlation with molecular genetic cause and cognitive function. METHODS: Brain MRI of 110 patients with Joubert syndrome was included in this study. A comprehensive evaluation of brain MRI studies for infratentorial and supratentorial morphological abnormalities was performed...
January 13, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28087243/using-deep-learning-to-investigate-the-neuroimaging-correlates-of-psychiatric-and-neurological-disorders-methods-and-applications
#13
REVIEW
Sandra Vieira, Walter H L Pinaya, Andrea Mechelli
Deep learning (DL) is a family of machine learning methods that has gained considerable attention in the scientific community, breaking benchmark records in areas such as speech and visual recognition. DL differs from conventional machine learning methods by virtue of its ability to learn the optimal representation from the raw data through consecutive nonlinear transformations, achieving increasingly higher levels of abstraction and complexity. Given its ability to detect abstract and complex patterns, DL has been applied in neuroimaging studies of psychiatric and neurological disorders, which are characterised by subtle and diffuse alterations...
January 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28081226/regional-homogeneity-changes-in-nicotine-addicts-by-resting-state-fmri
#14
Hongbo Chen, Shaofeng Mo
OBJECTIVE: To reveal the brain functional changes of nicotine addicts compared with those of non-smokers and explore the objective biomarker for nicotine dependence evaluation. METHODS: A total of 14 smokers and 11 non-smoking controls were recruited for this study. Resting-state functional magnetic resonance imaging and regional homogeneity (ReHo) were applied in the neural activity analysis. Two-sample t-test was performed to examine the voxel-wise difference between the smokers and the controls...
2017: PloS One
https://www.readbyqxmd.com/read/28079104/longitudinal-measurement-and-hierarchical-classification-framework-for-the-prediction-of-alzheimer-s-disease
#15
Meiyan Huang, Wei Yang, Qianjin Feng, Wufan Chen
Accurate prediction of Alzheimer's disease (AD) is important for the early diagnosis and treatment of this condition. Mild cognitive impairment (MCI) is an early stage of AD. Therefore, patients with MCI who are at high risk of fully developing AD should be identified to accurately predict AD. However, the relationship between brain images and AD is difficult to construct because of the complex characteristics of neuroimaging data. To address this problem, we present a longitudinal measurement of MCI brain images and a hierarchical classification method for AD prediction...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28079059/co-variation-of-peripheral-levels-of-mir-1202-and-brain-activity-and-connectivity-during-antidepressant-treatment
#16
Juan Pablo Lopez, Fabricio Pereira, Stéphane Richard-Devantoy, Marcelo Berlim, Eduardo Chachamovich, Laura M Fiori, Paola Niola, Gustavo Turecki, Fabrice Jollant
MicroRNAs are short non-coding molecules that play a major role in regulating gene expression. Peripheral levels of miR-1202 have been shown to predict and mediate antidepressant response. However, it is not clear to what extent these peripheral measures reflect central neural changes in vivo. We approached this problem with the combined use of peripheral miR-1202 measures and neuroimaging. At baseline and after 8 weeks of Desvenlafaxine (50-100 mg die), twenty patients were scanned with 3T Magnetic Resonance Imaging, first at rest then during the Go/NoGo task, a classical test of response inhibition...
January 12, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28079057/functional-mri-of-the-reserpine-induced-putative-rat-model-of-fibromyalgia-reveals-discriminatory-patterns-of-functional-augmentation-to-acute-nociceptive-stimuli
#17
Jack A Wells, Sayaka Shibata, Akihiko Fujikawa, Masayasu Takahashi, Tsuneo Saga, Ichio Aoki
Functional neuroimaging, applied to pre-clinical models of chronic pain, offers unique advantages in the drive to discover new treatments for this prevalent and oppressive condition. The high spatial and temporal resolution of fMRI affords detailed mapping of regional pharmacodynamics that underlie mechanisms of pain suppression by new analgesics. Despite evidence supporting the translational relevance of this approach, relatively few studies have investigated fMRI abnormalities in rodent models of chronic pain...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28079042/study-of-interleukin-6-and-interleukin-8-levels-in-patients-with-neurological-manifestations-of-dengue
#18
V K Mehta, R Verma, R K Garg, H S Malhotra, P K Sharma, A Jain
CONTEXT: Pro-inflammatory markers play a key role in the pathogenesis of various Flavivirus infection. AIM: In this study, we evaluated the role of these markers in neurological manifestations of dengue. SETTINGS AND DESIGNS: Consecutive dengue cases with different neurological manifestations who presented between August 2012 and July 2014 were studied in hospital-based case-control study. MATERIALS AND METHODS: Interleukin (IL-6) and IL-8 level were measured in serum and cerebrospinal fluid (CSF) of dengue cases with different neurological manifestations and also in age- and sex-matched controls...
January 2017: Journal of Postgraduate Medicine
https://www.readbyqxmd.com/read/28078877/congenital-muscular-dystrophy-and-epilepsy-a-prospective-case-series-of-pediatric-patients
#19
G Vitaliti, P Pavone, C Romano, M Barbagallo, M Vecchio, C Ledda, R Lubrano, R Falsaperla
Congenital Muscular Dystrophies (CMDs) can be considered as a heterogeneous group of diseases characterized by marked weakness, generalized hypotonia and joint contractures. They are divided into pure and classical forms, without ocular and cerebral involvement, and complex forms, which are associated with cerebral abnormalities. Seizures have rarely been described in the pure forms while they seem to occur more frequently in complex forms. The aim of our study was to evaluate the incidence of seizure in CMD...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078700/introduction-to-horizons-review-series-on-neuroimaging
#20
EDITORIAL
Anne Lingford-Hughes
No abstract text is available yet for this article.
February 2017: Addiction
keyword
keyword
46282
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"