The "Mozart effect": an electroencephalographic analysis employing the methods of induced event-related desynchronization/synchronization and event-related coherence.

abstract：:We studied the magnetic field maps generated by six dipoles in the temporal region of a plastic skull filled with conducting gel. The data were processed with two mathematical models. One, using Biot-Savart's law, considered only the magnetic field generated by a localized current dipole, and the other considered a di...

journal_title：Brain topography

authors： Rose DF,Ducla-Soares E,Sato S

更新日期：1989-04-01 00:00:00

abstract：:Despite genetic, morphological and experimental in vivo, data implying fixed abnormalities in patients with absence seizures, attempts to find highly consistent features in the 3-Hz spike-and-wave pattern recorded during sequential seizures from the same subject have been largely unsuccessful. We used a new data decom...

journal_title：Brain topography

authors： McKeown MJ,Humphries C,Iragui V,Sejnowski TJ

更新日期：1999-01-01 00:00:00

abstract：:Action generation relies on a widely distributed network of brain areas. However, little is known about the spatiotemporal dynamics of neuronal activity in the network that gives rise to voluntary action in humans. Here, we used magnetoencephalography (MEG) and source analysis (n = 15, 7 female subjects) to investigat...

journal_title：Brain topography

authors： Carl C,Hipp JF,König P,Engel AK

更新日期：2016-01-01 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：:The acoustic envelope of human speech correlates with the syllabic rate (4-8 Hz) and carries important information for intelligibility, which is typically compromised in multi-talker, noisy environments. In order to better understand the dynamics of selective auditory attention to low frequency modulated sound sources...

journal_title：Brain topography

authors： Jaeger M,Bleichner MG,Bauer AR,Mirkovic B,Debener S

更新日期：2018-09-01 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：: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：:Although impairments related to somatosensory perception are common in schizophrenia, they have rarely been examined in functional imaging studies. In the present study, magnetoencephalography (MEG) was used to identify neural networks that support attention to somatosensory stimuli in healthy adults and abnormalities...

journal_title：Brain topography

authors： Huang MX,Lee RR,Gaa KM,Song T,Harrington DL,Loh C,Theilmann RJ,Edgar JC,Miller GA,Canive JM,Granholm E

更新日期：2010-03-01 00:00:00

abstract：:The magnetoencephalography (MEG) signal was recorded while subjects watched a video containing separate blocks of affective and cognitive advertisements and recalled slides extracted from the video a day later. An earlier behavioural study using the same video material showed that the affective advertisements were bet...

journal_title：Brain topography

authors： Ioannides AA,Liu L,Theofilou D,Dammers J,Burne T,Ambler T,Rose S

更新日期：2000-10-01 00:00:00

abstract：:Many meditation exercises aim at increased awareness of ongoing experiences through sustained attention and at detachment, i.e., non-engaging observation of these ongoing experiences by the intent not to analyze, judge or expect anything. Long-term meditation practice is believed to generalize the ability of increased...

journal_title：Brain topography

authors： Tei S,Faber PL,Lehmann D,Tsujiuchi T,Kumano H,Pascual-Marqui RD,Gianotti LR,Kochi K

更新日期：2009-11-01 00:00:00

abstract：:Advanced functional neuroimaging approaches dealing with motor imagery have disclosed covert cognitive processes in patients with disorders of consciousness (DoC). However, motor impairment and cognitive-motor dissociation can bias such approaches. Fourteen patients with post-traumatic DoC and ten healthy controls (HC...

journal_title：Brain topography

authors： Naro A,Calabrò RS,Leo A,Russo M,Milardi D,Cannavò A,Manuli A,Buda A,Casella C,Bramanti P,Cacciola A,Bramanti A

更新日期：2018-07-01 00:00:00

abstract：:This paper describes a set of proposed standardized quantitative descriptors of event-related potentials, based upon principal component varimax analysis (PCVA). No claim is made that these mathematical descriptors correspond to discrete neurophysiological processes which generate the ERP. However, adoption and prospe...

journal_title：Brain topography

authors： John ER,Easton P,Prichep LS,Friedman J

更新日期：1993-01-01 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：:Temporal structure is ubiquitous in sensory signals, and the brain has been shown to robustly represent information about temporal structure in the phase of low frequency neural oscillations. In a related construct, the integration of information across the different senses has been proposed to be at least partly due ...

journal_title：Brain topography

authors： Simon DM,Wallace MT

更新日期：2017-09-01 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：:Perceptual closure ability is postulated to depend upon rapid transmission of magnocellular information to prefrontal cortex via the dorsal stream. In contrast, illusory contour processing requires only local interactions within primary and ventral stream visual regions, such as lateral occipital complex. Schizophreni...

journal_title：Brain topography

authors： Amiaz R,Vainiger D,Gershon AA,Weiser M,Lavidor M,Javitt DC

更新日期：2016-07-01 00:00:00

abstract：:Sensor selection is typically used in magnetoencephalography (MEG) and scalp electroencephalography (EEG) studies, but this practice cannot differentiate between changes in the distribution of neural sources versus changes in the magnitude of neural sources. This problem is further complicated by (1) subject averaging...

journal_title：Brain topography

authors： Tian X,Huber DE

更新日期：2008-04-01 00:00:00

abstract：:EEG reveals brain functions with high temporal resolution. Yet, multiple implicit variables may be involved in limited ERP measures. Special computation techniques are needed to recover these parameters. In the study of attention, we can obtain the ERP in attended (V) and unattended (U) conditions. Usually, the effect...

journal_title：Brain topography

authors： Yao D

更新日期：2003-10-01 00:00:00

abstract：:Most EEG studies analysing speech production with event related brain potential (ERP) have adopted silent metalinguistic tasks or delayed or tacit picture naming in order to avoid possible artefacts during motor preparation. A central issue in the interpretation of these results is whether the processes involved in th...

journal_title：Brain topography

authors： Laganaro M,Perret C

更新日期：2011-03-01 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：: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

abstract：:With its millisecond temporal resolution, Magnetoencephalography (MEG) is well suited for real-time monitoring of brain activity. Real-time feedback allows the adaption of the experiment to the subject's reaction and increases time efficiency by shortening acquisition and off-line analysis. Two formidable challenges e...

journal_title：Brain topography

authors： Dinh C,Strohmeier D,Luessi M,Güllmar D,Baumgarten D,Haueisen J,Hämäläinen MS

更新日期：2015-11-01 00:00:00

abstract：:The simultaneous evaluation of the local electrocorticogram (ECoG) and the more broadly distributed electroencephalogram (EEG) from humans undergoing evaluation for epilepsy surgery has been shown to further the understanding of how pathologies give rise to spontaneous seizures. However, a well-known problem is that t...

journal_title：Brain topography

authors： Lanfer B,Röer C,Scherg M,Rampp S,Kellinghaus C,Wolters C

更新日期：2013-04-01 00:00:00

abstract：:In this mapping study of the entire scalp area, the responses to flash (FL) and pattern reversal (PR) stimuli were studied in 34 normal subjects. The N70, P100, N135 and P180 were similar from both stimuli but with some differences in amplitude and latency, especially the variability of the latency of P100 from FL. A ...

journal_title：Brain topography

authors： Hughes JR,Kuruvilla A,Fino JJ

更新日期：1992-04-01 00:00:00

abstract：:Median nerve somatosensory evoked potentials were recorded from exposed cerebral cortex during craniotomies. This technique is valuable when knowledge of the motor cortex location can influence surgical decisions about resection limits or biopsy sites. Two different recording techniques were compared: strips of electr...

journal_title：Brain topography

authors： Nuwer MR,Banoczi WR,Cloughesy TF,Hoch DB,Peacock W,Levesque MF,Black KL,Martin NA,Becker DP

更新日期：1992-10-01 00:00:00

abstract：:A visual three-stimulus (target, nontarget, standard) paradigm was employed in which subjects responded only to the target. Nontarget stimulus properties were varied systematically to evaluate how stimulus typicality (non-novel vs. novel) across task discrimination (easy vs. difficult) conditions affects P3a scalp top...

journal_title：Brain topography

authors： Polich J,Comerchero MD

更新日期：2003-04-01 00:00:00

abstract：:The objectives of this study were to examine the association of stride time variability (STV) with gray and white matter volumes in healthy older adults, and to determine the specific location of any parenchymal loss associated with higher STV. A total of 71 participants (mean age 69.0 ± 0.8 years; 59.7 % female) were...

journal_title：Brain topography

authors： Beauchet O,Annweiler C,Celle S,Bartha R,Barthélémy JC,Roche F

更新日期：2014-03-01 00:00:00

abstract：:Event-related potentials (ERPs) during a visual oddball paradigm with button-pressing responses were recorded in 12 right-handed subjects from 32 scalp electrodes. The single equivalent current dipole (ECD) of the target C1 (weak occipito-parietal negativity from 30-80 ms) was consistently located at the primary visua...

journal_title：Brain topography

authors： Yamazaki T,Kamijo K,Kenmochi A,Fukuzumi S,Kiyuna T,Takaki Y,Kuroiwa Y

更新日期：2000-04-01 00:00:00

abstract：:EEG-signals were recorded from subjects as they performed a modified version of Schneider's and Shiffrin's memory search paradigm. The hypothesis was tested whether individual (centre of gravity) alpha frequency, termed IAF, is related to memory performance and/or attentional demands. The results show that memory perf...

journal_title：Brain topography

authors： Klimesch W,Schimke H,Pfurtscheller G

更新日期：1993-04-01 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