Abnormal Functional Connectivity Density in Post-Stroke Aphasia.

abstract：:When evoked responses are used in clinical practice and research the measures that are most commonly considered are the latencies and amplitudes of EP components as measured at a single electrode site. Our recent studies have shown that multichannel recordings yield measures such as potential field asymmetry that may ...

journal_title：Brain topography

authors： Sidman RD,Ford MR,Ramsey G

更新日期：1994-04-01 00:00:00

abstract：:Electroconvulsive therapy (ECT) has significant short-term antidepressant effects on drug-resistant patients with severe major depression. Animal studies have demonstrated that electroconvulsive seizures produce potentiation-like synaptic remodeling in both sub-cortical and frontal cortical circuits. However, the elec...

journal_title：Brain topography

authors： Casarotto S,Canali P,Rosanova M,Pigorini A,Fecchio M,Mariotti M,Lucca A,Colombo C,Benedetti F,Massimini M

更新日期：2013-04-01 00:00:00

abstract：:It would be of the utmost interest to map correlated sources in the working human brain by Event-Related Potentials (ERPs). This work is to develop a new method to map correlated neural sources based on the time courses of the scalp ERPs waveforms. The ERP data are classified first by k-means cluster analysis, and the...

journal_title：Brain topography

authors： Li L,Yao D

更新日期：2007-07-01 00:00:00

abstract：:Accurate source localization of electroencephalographic (EEG) signals requires detailed information about the geometry and physical properties of head tissues. Indeed, these strongly influence the propagation of neural activity from the brain to the sensors. Finite difference methods (FDMs) are head modelling approach...

journal_title：Brain topography

authors： Cuartas Morales E,Acosta-Medina CD,Castellanos-Dominguez G,Mantini D

更新日期：2019-03-01 00:00:00

abstract：:Emotionally arousing events can distort our sense of time. We used mixed block/event-related fMRI design to establish the neural basis for this effect. Nineteen participants were asked to judge whether angry, happy and neutral facial expressions that varied in duration (from 400 to 1,600 ms) were closer in duration to...

journal_title：Brain topography

authors： Tipples J,Brattan V,Johnston P

更新日期：2015-01-01 00:00:00

abstract：:Tourette syndrome (TS) is a neuropsychiatric disorder with childhood onset characterized by chronic motor and vocal tics; however, the current diagnosis of TS patients is subjective, as it is mainly assessed based on the parents' description alongside specific evaluations. The early and accurate diagnosis of TS based ...

journal_title：Brain topography

authors： Duan K,Wu Q,Liao Y,Si Y,Bore JC,Li F,Tao Q,Lin L,Lei W,Hu X,Yao D,Pei C,Zhang T,Huang L,Xu P

更新日期：2021-01-01 00:00:00

abstract：:Multisensory processes include the capacity to combine information from the different senses, often improving stimulus representations and behavior. The extent to which multisensory processes are an innate capacity or instead require experience with environmental stimuli remains debated. We addressed this knowledge ga...

journal_title：Brain topography

authors： Maitre NL,Key AP,Slaughter JC,Yoder PJ,Neel ML,Richard C,Wallace MT,Murray MM

更新日期：2020-09-01 00:00:00

abstract：:A new residual function in the inverse problem of equivalent dipole localization methods is proposed which is based on the spatial correlation of the background EEG. This residual has the advantage that it allows the calculation of confidence limits for dipole model parameters. The method was applied to VEP data, and ...

journal_title：Brain topography

authors： Yamazaki T,van Dijk BW,Spekreijse H

更新日期：1992-01-01 00:00:00

abstract：:Recent evidence suggests that transient increases in scalp electroencephalography (EEG) gamma band power (above 30 Hz) can be due to miniature eye movements. Although, these findings do not raise doubts about the widely established role of gamma range neural synchrony, it does call for caution when it comes to interpr...

journal_title：Brain topography

authors： Jerbi K,Freyermuth S,Dalal S,Kahane P,Bertrand O,Berthoz A,Lachaux JP

更新日期：2009-06-01 00:00:00

abstract：:Multiresolution analysis is a potentially useful tool to enhance the brain's electrical fields (spatial distributions of event-related potentials (ERP)), and to bring out spatial features which may not be seen in the fields before enhancement. For comparing different images (slices from ERP of different subjects or fr...

journal_title：Brain topography

authors： Wang K,Begleiter H,Porjesz B

更新日期：1998-04-01 00:00:00

abstract：:Fibromyalgia (FM) is a chronic syndrome involving widespread pain of unclear pathophysiology. FM patients frequently complain about cognitive symptoms that interfere with their daily life activities. Several studies have reported attentional deficits and working memory impairment in FM patients. Nevertheless, the mech...

journal_title：Brain topography

authors： González-Villar AJ,Pidal-Miranda M,Arias M,Rodríguez-Salgado D,Carrillo-de-la-Peña MT

更新日期：2017-07-01 00:00:00

abstract：:Over the last 20 years, a body of techniques known as high resolution EEG has allowed precise estimation of cortical activity from non-invasive EEG measurements. The availability of cortical waveforms from non-invasive EEG recordings allows to have not only the level of activation within a single region of interest (R...

journal_title：Brain topography

authors： De Vico Fallani F,Astolfi L,Cincotti F,Mattia D,Tocci A,Marciani MG,Colosimo A,Salinari S,Gao S,Cichocki A,Babiloni F

更新日期：2007-04-01 00:00:00

abstract：:Cognitive performance in attention-deficit/hyperactivity disorder (ADHD) is characterised, in part, by frequent fluctuations in response speed, resulting in high reaction time variability (RTV). RTV captures a large proportion of the genetic risk in ADHD but, importantly, is malleable, improving significantly in a fas...

journal_title：Brain topography

authors： Cheung CHM,McLoughlin G,Brandeis D,Banaschewski T,Asherson P,Kuntsi J

更新日期：2017-05-01 00:00:00

abstract：:Motion artifacts are a well-known and frequent limitation during neuroimaging workup of cognitive decline. While head motion typically deteriorates image quality, we test the hypothesis that head motion differs systematically between healthy controls (HC), amnestic mild cognitive impairment (aMCI) and Alzheimer diseas...

journal_title：Brain topography

authors： Haller S,Monsch AU,Richiardi J,Barkhof F,Kressig RW,Radue EW

更新日期：2014-11-01 00:00:00

abstract：:Several fMRI studies have been performed to detect the neural correlates of stable bimanual coordination patterns in humans. Only few of those studies were accompanied by the on-line recording of the relative phase of fingers or hands, but none with high space and time resolutions. Conversely, the high-resolution reco...

journal_title：Brain topography

authors： De Luca C,Comani S,Di Donato L,Caulo M,Bertollo M,Romani GL

更新日期：2007-04-01 00:00:00

abstract：:The golden standard of treating Small Cell Lung Cancer (SCLC) entails application of platinum-based chemotherapy, is often accompanied by Prophylactic Cranial Irradiation (PCI), which have been linked to neurotoxic side-effects in cognitive functions. The related existing neuroimaging research mainly focuses on the ef...

journal_title：Brain topography

authors： Mentzelopoulos A,Gkiatis K,Karanasiou I,Karavasilis E,Papathanasiou M,Efstathopoulos E,Kelekis N,Kouloulias V,Matsopoulos GK

更新日期：2021-01-05 00:00:00

abstract：:The aim of this work was to use probabilistic diffusion tractography to examine the organization of the human insular cortex based on the similarities of its remote projections. Forty right-handed healthy subjects (33.8 ± 12.7 years old) with no history of neurological injury were included in the study. After the spat...

journal_title：Brain topography

authors： Jakab A,Molnár PP,Bogner P,Béres M,Berényi EL

更新日期：2012-07-01 00:00:00

abstract：:Spontaneous EEG signal can be parsed into sub-second periods of stable functional states (microstates) that assumingly correspond to brief large scale synchronization events. In schizophrenia, a specific class of microstate (class "D") has been found to be shorter than in healthy controls and to be correlated with pos...

journal_title：Brain topography

authors： Diaz Hernandez L,Rieger K,Baenninger A,Brandeis D,Koenig T

更新日期：2016-03-01 00:00:00

abstract：:Automated structural magnetic resonance imaging (MRI) processing pipelines are gaining popularity for Alzheimer's disease (AD) research. They generate regional volumes, cortical thickness measures and other measures, which can be used as input for multivariate analysis. It is not clear which combination of measures an...

journal_title：Brain topography

authors： Westman E,Aguilar C,Muehlboeck JS,Simmons A

更新日期：2013-01-01 00:00:00

abstract：:Detecting and discriminating subtle and rapid sound changes in the speech environment is a fundamental prerequisite of language processing, and deficits in this ability have frequently been observed in individuals with language-learning impairments (LLI). One approach to studying associations between dysfunctional aud...

journal_title：Brain topography

authors： Heim S,Choudhury N,Benasich AA

更新日期：2016-05-01 00:00:00

abstract：:Effortful control (EC), considered as one component of temperament, describes an individual's capacity for self-regulation. Previous neuroimaging studies have provided convergent evidence that individual differences in EC are determined by the functioning of neural systems subserving executive attention, primarily com...

journal_title：Brain topography

authors： Wei L,Guo N,Baeken C,Bi M,Wang X,Qiu J,Wu GR

更新日期：2019-01-01 00:00:00

abstract：:Spatial principal components analysis (SPCA) applied to the ongoing EEG yields factor loadings which, when mapped, consistently reveal symmetrical patterns resembling the spherical harmonics. In this paper, we consider the mechanisms responsible for these characteristic patterns. In doing so, we demonstrate that volum...

journal_title：Brain topography

authors： Silberstein RB,Cadusch PJ

更新日期：1992-07-01 00:00:00

abstract：:The altered functional connectivity in the brain of patients with early vascular dementia (VaD) is poorly understood. Here we investigated the directed connectivity differences between VaD and normal elderly while performing a visual oddball task. Multichannel EEG data during a visual oddball task were recorded for 12...

journal_title：Brain topography

authors： Xu J,Lou W,Zhao S,Wang C

更新日期：2015-03-01 00:00:00

abstract：:Humans are highly sensitive to statistical regularities in their environment. This phenomenon, usually referred as statistical learning, is most often assessed using post-learning behavioural measures that are limited by a lack of sensibility and do not monitor the temporal dynamics of learning. In the present study, ...

journal_title：Brain topography

authors： Farthouat J,Franco A,Mary A,Delpouve J,Wens V,Op de Beeck M,De Tiège X,Peigneux P

更新日期：2017-03-01 00:00:00

abstract：:The combination of transcranial magnetic stimulation (TMS) with simultaneous electroencephalography (EEG) provides us the possibility to non-invasively probe the brain's excitability, time-resolved connectivity and instantaneous state. Early attempts to combine TMS and EEG suffered from the huge electromagnetic artifa...

journal_title：Brain topography

authors： Ilmoniemi RJ,Kicić D

更新日期：2010-01-01 00:00:00

abstract：:Event-Related Desynchronization (ERD) and Synchronization (ERS) were studied in 20 normal subjects during a Sternberg-type auditory memory-scanning paradigm. Half of the subjects performed the experiment with vowels and the other half with tones as stimuli. The stimuli consisted of 100 msec long synthesized vowels and...

journal_title：Brain topography

authors： Krause CM,Lang H,Laine M,Kuusisto M,Pörn B

更新日期：1995-10-01 00:00:00

abstract：:We trained four right-handed male subjects to detect small changes in the frequency of 21 Hz electrical stimulation applied to digits 2+3+4 of the right hand for 4 hours. Before and after the training, we recorded magnetoencephalographic (MEG) signals when the stimulation was applied to digit 2-5 separately using a wh...

journal_title：Brain topography

authors： Liu L,Ioannides AA

更新日期：2004-07-01 00:00:00

abstract：:The combination of transcranial magnetic stimulation (TMS) and electroencephalography (EEG) is commonly applied for studying the effective connectivity of neuronal circuits. The stimulation excites neurons, and the resulting TMS-evoked potentials (TEPs) are recorded with EEG. A serious obstacle in this method is the g...

journal_title：Brain topography

authors： Salo KS,Mutanen TP,Vaalto SMI,Ilmoniemi RJ

更新日期：2020-01-01 00:00:00

abstract：:Previous independent EEG and PET studies suggest that administration of intravenous procaine hydrochloride selectively activates limbic brain structures. To further elucidate procaine's effects and explore the relationship between quantitative EEG (qEEG) and regional cerebral blood flow (rCBF), we simultaneously recor...

journal_title：Brain topography

authors： Parekh PI,Spencer JW,George MS,Gill DS,Ketter TA,Andreason P,Herscovitch P,Post RM

更新日期：1995-04-01 00:00:00

abstract：:The term "magnetic source image" (MSI) describes the distribution of neuronal activity in the brain that can be deduced from measurements of the field pattern it produces across the scalp. The signals which provide the basis for an MSI are obtained from the magnetoencephalogram (MEG) which is conventionally recorded w...

journal_title：Brain topography

authors： Williamson SJ,Lü ZL,Karron D,Kaufman L

更新日期：1991-01-01 00:00:00