P3a from visual stimuli: typicality, task, and topography.

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：:States of depression are considered to relate to a cognitive bias reactivity to emotional events. Moreover, gender effect may influence differences in emotional processing. The current study is to investigate whether there is an interaction of cognitive bias by gender on emotional processing in minor depression (MiD) ...

journal_title：Brain topography

authors： Wu X,Chen J,Jia T,Ma W,Zhang Y,Deng Z,Yang L

更新日期：2016-03-01 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

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：:Aging and sensorineural hearing loss are known to be involved in the development of chronic tinnitus. This study explores the structural changes of gray matter using surface base methods and focuses more specifically on changes in cortical thickness in 127 tinnitus patients. The linear relationships between cortical t...

journal_title：Brain topography

authors： Yoo HB,De Ridder D,Vanneste S

更新日期：2016-11-01 00:00:00

abstract：:We process information from the world through multiple senses, and the brain must decide what information belongs together and what information should be segregated. One challenge in studying such multisensory integration is how to quantify the multisensory interactions, a challenge that is amplified by the host of me...

journal_title：Brain topography

authors： Stevenson RA,Ghose D,Fister JK,Sarko DK,Altieri NA,Nidiffer AR,Kurela LR,Siemann JK,James TW,Wallace MT

更新日期：2014-11-01 00:00:00

abstract：:This study aimed to finding modality-independent event-related potentials (ERP) modulations related to spatial attention by minimising several possible methodological constrains which may account for the rareness of this finding in past spatial attention ERP research. ERP were recorded while subjects performed a shift...

journal_title：Brain topography

authors： Martin-Loeches M,Barceló F,Rubia FJ

更新日期：1997-10-01 00:00:00

abstract：:The neural correlate of anterograde amnesia in Wernicke-Korsakoff syndrome (WKS) is still debated. While the capacity to learn new information has been associated with integrity of the medial temporal lobe (MTL), previous studies indicated that the WKS is associated with diencephalic lesions, mainly in the mammillary ...

journal_title：Brain topography

authors： Nahum L,Pignat JM,Bouzerda-Wahlen A,Gabriel D,Liverani MC,Lazeyras F,Ptak R,Richiardi J,Haller S,Thorens G,Zullino DF,Guggisberg AG,Schnider A

更新日期：2015-09-01 00:00:00

abstract：:What happens if you see a person pronouncing the word "go" after having gestured "stop"? Differently from iconic gestures, that must necessarily be accompanied by verbal language in order to be unambiguously understood, symbolic gestures are so conventionalized that they can be effortlessly understood in the absence o...

journal_title：Brain topography

authors： Fabbri-Destro M,Avanzini P,De Stefani E,Innocenti A,Campi C,Gentilucci M

更新日期：2015-07-01 00:00:00

abstract：:Evoked potentials are difficult to analyze because multiple sources are active simultaneously. Principal component analysis and dipole localization are two techniques that have been used to disentangle overlapping sources. Both of these techniques have problems. Principal component analysis suffers from a rotation amb...

journal_title：Brain topography

authors： Klein SA,Carney T

更新日期：1995-01-01 00:00:00

abstract：:The functional organization of cortical speech processing is thought to be hierarchical, increasing in complexity and proceeding from primary sensory areas centrifugally. The current study used the mismatch negativity (MMN) obtained with electrophysiology (EEG) to investigate the early latency period of visual speech ...

journal_title：Brain topography

authors： Ponton CW,Bernstein LE,Auer ET Jr

更新日期：2009-05-01 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：:Previous studies showed that distinct components of higher cognitive processes like memorizing of words could be correlated with changes in different frequency bands of the human EEG. This study was designed in order to find out if 1) some frequency bands show power and coherence changes only due to the modality of pr...

journal_title：Brain topography

authors： Weiss S,Rappelsberger P

更新日期：1998-10-01 00:00:00

abstract：:Posterior cortical atrophy (PCA), considered a visual variant of Alzheimer's disease, has similar pathological characteristics yet shows a selective visual manifestation with relative preservation of other cortical areas, at least at early stages of disease. Using a gamut of imaging methods, we aim to evaluate the glo...

journal_title：Brain topography

authors： Glick-Shames H,Keadan T,Backner Y,Bick A,Levin N

更新日期：2020-09-01 00:00:00

abstract：:The aim of the present study was to investigate how the context in which an action is presented could modulate the effect of action observation on language processing, an effect that is classically observed in the literature. To address this question, we recorded both behavioral (reaction times) and electrophysiologic...

journal_title：Brain topography

authors： Beauprez SA,Laroche B,Perret C,Bidet-Ildei C

更新日期：2019-09-01 00:00:00

abstract：:Multimodal human brain mapping has been proposed as an integrated approach capable of improving the recognition of the cortical correlates of specific neurological functions. We used simultaneous EEG-fMRI (functional magnetic resonance imaging) and EEG-TD-fNIRS (time domain functional near-infrared spectroscopy) recor...

journal_title：Brain topography

authors： Visani E,Canafoglia L,Gilioli I,Sebastiano DR,Contarino VE,Duran D,Panzica F,Cubeddu R,Contini D,Zucchelli L,Spinelli L,Caffini M,Molteni E,Bianchi AM,Cerutti S,Franceschetti S,Torricelli A

更新日期：2015-11-01 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：:Magnetoencephalography provides precise information about the temporal dynamics of brain activation and is an ideal tool for investigating rapid cognitive processing. However, in many cognitive paradigms visual stimuli are used, which evoke strong brain responses (typically 40-100 nAm in V1) that may impede the detect...

journal_title：Brain topography

authors： Mills T,Lalancette M,Moses SN,Taylor MJ,Quraan MA

更新日期：2012-07-01 00:00:00

abstract：:While several studies have investigated interactions between the electroencephalography (EEG) and functional magnetic resonance imaging BOLD signal fluctuations, less is known about the associations between EEG oscillations and baseline brain haemodynamics, and few studies have examined the link between EEG power outs...

journal_title：Brain topography

authors： O'Gorman RL,Poil SS,Brandeis D,Klaver P,Bollmann S,Ghisleni C,Lüchinger R,Martin E,Shankaranarayanan A,Alsop DC,Michels L

更新日期：2013-07-01 00:00:00

abstract：:Nineteen young healthy volunteers (8 males and 11 females) participated in an experimental ice-cube cold pressor test to study topographic changes of EEG parameters in response to painful stimulation. EEG was recorded with 19 electrodes and quantified by amplitude and coherence analyses. Mean amplitudes and values for...

journal_title：Brain topography

authors： Chen AC,Rappelsberger P

更新日期：1994-01-01 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：:EEG background activity of patients with obstructive sleep apnea syndrome (OSAS, N = 25) was compared to that of normal controls (N = 14) to reflect alterations of brain electrical activity caused by chronic intermittent hypoxia in OSAS. Global and regional (left vs. right, anterior vs. posterior) measures of spatial ...

journal_title：Brain topography

authors： Toth M,Faludi B,Wackermann J,Czopf J,Kondakor I

更新日期：2009-11-01 00:00:00

abstract：:Adaptive behaviour requires an ability to obtain rewards by choosing between different risky options. Financial gambles can be used to study effective decision-making experimentally, and to distinguish processes involved in choice option evaluation from outcome feedback and other contextual factors. Here, we used a pa...

journal_title：Brain topography

authors： Minati L,Grisoli M,Franceschetti S,Epifani F,Granvillano A,Medford N,Harrison NA,Piacentini S,Critchley HD

更新日期：2012-01-01 00:00:00

abstract：:Metastability is currently considered a fundamental property of the functional configuration of brain networks. The present study sought to generate a normative reference framework for the metastability of the major resting-state networks (RSNs) (resting-state metastability dataset) and discover their association with...

journal_title：Brain topography

authors： Lee WH,Moser DA,Ing A,Doucet GE,Frangou S

更新日期：2019-01-01 00:00:00

abstract：:The ability to effectively combine sensory inputs across modalities is vital for acquiring a unified percept of events. For example, watching a hammer hit a nail while simultaneously identifying the sound as originating from the event requires the ability to identify spatio-temporal congruencies and statistical regula...

journal_title：Brain topography

authors： Altieri N,Stevenson RA,Wallace MT,Wenger MJ

更新日期：2015-05-01 00:00:00

abstract：:We applied the following methods to resting-state EEG data from patients with disorders of consciousness (DOC) for consciousness indexing and outcome prediction: microstates, entropy (i.e. approximate, permutation), power in alpha and delta frequency bands, and connectivity (i.e. weighted symbolic mutual information, ...

journal_title：Brain topography

authors： Stefan S,Schorr B,Lopez-Rolon A,Kolassa IT,Shock JP,Rosenfelder M,Heck S,Bender A

更新日期：2018-09-01 00:00:00

abstract：:Motor dysfunction and recovery following stroke and rehabilitation are associated with primary motor cortex plasticity. To better track these effects we studied two patients with sub-acute sub-cortical stroke causing hemiparesis, who underwent an effective behavioral treatment termed Constraint Induced Movement Therap...

journal_title：Brain topography

authors： Stark A,Meiner Z,Lefkovitz R,Levin N

更新日期：2012-04-01 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：: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：:Electrical dipoles oriented perpendicular to the cortical surface are the primary source of the scalp EEGs and MEGs. Thus, in particular, gyri and sulci structures on the cortical surface have a definite possibility to influence the EEGs and MEGs. This was examined by comparing the spatial power spectral density (PSD)...

journal_title：Brain topography

authors： Ramon C,Freeman WJ,Holmes M,Ishimaru A,Haueisen J,Schimpf PH,Rezvanian E

更新日期：2009-11-01 00:00:00