Search results for "MRI"
showing 10 items of 733 documents
The Brain Resting-State Functional Connectivity Underlying Violence Proneness: Is It a Reliable Marker for Neurocriminology? A Systematic Review
2019
Introduction: There is growing scientific interest in understanding the biological mechanisms affecting and/or underlying violent behaviors in order to develop effective treatment and prevention programs. In recent years, neuroscientific research has tried to demonstrate whether the intrinsic activity within the brain at rest in the absence of any external stimulation (resting-state functional connectivity; RSFC) could be employed as a reliable marker for several cognitive abilities and personality traits that are important in behavior regulation, particularly, proneness to violence. Aims: This review aims to highlight the association between the RSFC among specific brain structures and the…
A SIR based method for pancreas iron burden measurement in MRI T2* GRE sequences.
2009
A critical review of non invasive procedures for the evaluation of body iron burden in thalassemia major patients
2008
Aberrant brain functional networks in type 2 diabetes mellitus: A graph theoretical and support-vector machine approach
2022
ObjectiveType 2 diabetes mellitus (T2DM) is a high risk of cognitive decline and dementia, but the underlying mechanisms are not yet clearly understood. This study aimed to explore the functional connectivity (FC) and topological properties among whole brain networks and correlations with impaired cognition and distinguish T2DM from healthy controls (HC) to identify potential biomarkers for cognition abnormalities.MethodsA total of 80 T2DM and 55 well-matched HC were recruited in this study. Subjects’ clinical data, neuropsychological tests and resting-state functional magnetic resonance imaging data were acquired. Whole-brain network FC were mapped, the topological characteristics were ana…
Problēmrisināšanas prasmju identificēšana vidusskolas matemātikā
2021
Problēmrisināšanas prasmju identificēšana vidusskolas matemātikā. Artūrs Ļevikins, darba vadītāja Mg. paed. Aira Kumerdanka. Darba teorētiskajā daļā ir aprakstīta komplekso uzdevumu vidusskolas matemātikā, struktūra un pazīmes, ka arī normatīvo dokumentu prasības attiecībā uz to pielietošanu mācību procesā. Darba pētnieciskajā daļā ir izstrādāts un aprobēts komplekso uzdevumu komplekts, grupējot pielietotās risināšanas metodes un izteiktākās problēmas. Darba turpinājumā ir aprakstīta atsevišķo problēmrisināšanas prasmju apguve ar snieguma līmeņa rubrikām, kā arī izstrādāts ieteikumu komplekts skolotājiem turpmākam darbam ar katru izcelto prasmi atkarībā no snieguma līmeņa. Diplomdarbs satur…
PROPOSAL FOR A LANDSCAPE EVALUATION SYSTEM
2023
Abstract. This paper describes a system, currently being designed, for both perceptual analysis and aesthetic evaluation of a landscape. The choice of this topic is motivated by the fact that systems related to landscape visibility (e.g. Geographical Information Systems (GIS) for visual impact assessment) are not fully satisfactory when it comes to assessing the aesthetic appearance. They mainly analyse geometric aspects, such as the width of visual basins or the interference of visual trajectories, which can be expressed by objective and comparable parameters. Instead, for effective landscape knowledge and protection, it is important to consider other factors that cannot be easily measured…
Malignancy course of pituitary adenoma in MEN1 syndrome: Clinical-Neuroradiological signs
2020
Pituitary carcinomas (PCa) are extremely rare, indistinguishable from pituitary adenomas on histopathological grounds and have a poor prognosis. Most PCa start as PRL or ACTH secreting tumors in males, with relapsing invasive behaviour, refractoriness to medical and radiotherapy and increasing hormonal levels. The presence of distant metastases is still required for the diagnosis of PCa. The association with genetic endocrine diseases must be taken into account, since it adds further risk of evolution towards malignancy. Intradural spinal metastases have also been reported, so a complete craniospinal MR evaluation is recommended, when clinically indicated. We report a case of PCa, associate…
Rohkem kui sõnad
2007
Artikkel julgustab rakenduslingviste lisama verbaalse keele uurimise paradigmasse visuaalse keele mudelid ja teooriad, kaasama visuaalset kompetentsi, visuaalse kirjaoskuse ja ladususe kusimusi diskussiooni lingvistilise kompetentsi, kirjaoskuse, ladususe jms ule. Kommunikatsiooni visuaalseid elemente kohtab koige enam reklaamikontekstis. Arvatakse, et reklaamide visuaalsed kujutised (visuaalid) parandavad suhtumist brandi ning mojutavad positiivselt kaitumiskavatsusi. Artiklis kasitletakse visuaalide moningaid aspekte keele ja kommunikatsiooni vaatenurgast ning antakse luhiulevaade neurookonoomika neist tulemustest, mis on saadud magnetresonantsuuringute ( Magnetic Resonance Imaging ehk MR…
Motor Cortex Function in Fibromyalgia: A Study by Functional Near-Infrared Spectroscopy
2019
Previous studies indicated changes of motor cortex excitability in fibromyalgia (FM) patients and the positive results of transcranial stimulation techniques. The present study aimed to explore the metabolism of motor cortex in FM patients, in resting state and during slow and fast finger tapping, using functional Near-Infrared Spectroscopy (fNIRS), an optical method which detects in real time the metabolism changes in the cortical tissue. We studied 24 FM patients and 24 healthy subjects. We found a significant slowness of motor speed in FM patients compared to controls. During resting state and slow movement conditions, the metabolism of the motor areas was similar between groups. The oxy…
It's Sad but I Like It The Neural Dissociation Between Musical Emotions and Liking in Experts and Laypersons
2016
Emotion-related areas of the brain, such as the medial frontal cortices, amygdala, and striatum, are activated during listening to sad or happy music as well as during listening to pleasurable music. Indeed, in music, like in other arts, sad and happy emotions might co-exist and be distinct from emotions of pleasure or enjoyment. Here we aimed at discerning the neural correlates of sadness or happiness in music as opposed those related to musical enjoyment. We further investigated whether musical expertise modulates the neural activity during affective listening of music. To these aims, 13 musicians and 16 non-musicians brought to the lab their most liked and disliked musical pieces with a …