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 regularities. In this study, we applied a reaction time and hazard function measure known as capacity (e.g., Townsend and AshbyCognitive Theory 200-239, 1978) to quantify the extent to which observers learn paired associations between simple auditory and visual patterns in a model theoretic manner. As expected, results showed that learning was associated with an increase in accuracy, but more significantly, an increase in capacity. The aim of this study was to associate capacity measures of multisensory learning, with neural based measures, namely mean global field power (GFP). We observed a co-variation between an increase in capacity, and a decrease in GFP amplitude as learning occurred. This suggests that capacity constitutes a reliable behavioral index of efficient energy expenditure in the neural domain.
journal_name
Brain Topogrjournal_title
Brain topographyauthors
Altieri N,Stevenson RA,Wallace MT,Wenger MJdoi
10.1007/s10548-013-0333-7subject
Has Abstractpub_date
2015-05-01 00:00:00pages
479-93issue
3eissn
0896-0267issn
1573-6792journal_volume
28pub_type
杂志文章相关文献
BRAIN TOPOGRAPHY文献大全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
pub_type: 杂志文章
doi:10.1007/s10548-011-0210-1
更新日期:2012-01-01 00:00:00
abstract::The present study examined whether the excitability of the corticospinal pathway and the GABA-mediated inhibitory circuits of the primary motor cortex that project onto the corticospinal neurons in the tonically contracting hand muscle are changed by tonic contraction of the adjacent hand muscle. The motor evoked pote...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-016-0499-x
更新日期:2016-11-01 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
pub_type: 杂志文章
doi:10.1007/s10548-013-0293-y
更新日期:2014-03-01 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
pub_type: 杂志文章
doi:10.1007/BF01135564
更新日期:1992-07-01 00:00:00
abstract::A large portion of the visual cortex is organized retinotopically, but perception is usually non-retinotopic. For example, a reflector on the spoke of a bicycle wheel appears to move on a circular or prolate cycloidal orbit as the bicycle moves forward, while in fact it traces out a curtate cycloidal trajectory. The m...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-015-0458-y
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
pub_type: 杂志文章
doi:10.1007/s10548-012-0246-x
更新日期:2013-01-01 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
pub_type: 杂志文章
doi:10.1007/s10548-015-0426-6
更新日期:2016-01-01 00:00:00
abstract::Fronto-temporal areas process shared elements of speech and music. Improvisational psychodynamic music therapy (MT) utilizes verbal and musical reflection on emotions and images arising from clinical improvisation. Music listening is shifting frontal alpha asymmetries (FAA) in depression, and increases frontal midline...
journal_title:Brain topography
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10548-012-0254-x
更新日期:2013-04-01 00:00:00
abstract::The subcortical connectivity underlying verbal perseveration (VP) remains poorly understood. We have previously reported that intraoperative electrical stimulation of the caudate nucleus during awake surgery resulted in VP. Here, our purpose is to study the white matter pathway underlying VP using subcortical stimulat...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-013-0343-5
更新日期:2014-05-01 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
pub_type: 杂志文章
doi:10.1007/s10548-013-0350-6
更新日期:2015-01-01 00:00:00
abstract::Understanding the neural mechanisms of disorders of consciousness (DOC) is essential for estimating the conscious level and diagnosing DOC patients. Although previous studies reported brain functional connectivity (FC) and spontaneous neural activity patterns associated with consciousness, the relationship between the...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-018-0693-0
更新日期:2019-05-01 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
pub_type: 杂志文章
doi:10.1007/s10548-009-0107-4
更新日期:2009-11-01 00:00:00
abstract::The neurobiological basis and temporal dynamics of communicative language processing pose important yet unresolved questions. It has previously been suggested that comprehension of the communicative function of an utterance, i.e. the so-called speech act, is supported by an ensemble of neural networks, comprising lexi...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-013-0329-3
更新日期:2014-05-01 00:00:00
abstract::In 148 patients with focal cerebral lesions the findings of EEG mapping, routine EEG and CT were compared. Regarding etiology 43 patients suffered from completed stroke (CS), 43 patients from transient ischemic attack (TIA), 33 patients had an intracerebral hemorrhage (ICH) and 29 an hemispheric tumor. In 37 patients ...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/BF01129003
更新日期:1991-07-01 00:00:00
abstract::During active movement the somatosensory cortical responses are often attenuated. This attenuation is referred to as movement-related sensory gating. It is well known that patients with multiple sclerosis (MS) have sensory processing deficits, and recent work has also suggested that these patients display impaired mot...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-018-0632-0
更新日期:2018-07-01 00:00:00
abstract::In resting-state functional magnetic resonance imaging (fMRI) experiments, correlation analysis can be used to identify clusters of cortical regions that may be functionally connected. Although such functional connectivity is often assumed to reflect cortico-cortical connections, a potential confound is the contributi...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-013-0290-1
更新日期:2013-10-01 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
pub_type: 杂志文章,评审
doi:10.1007/s10548-007-0040-3
更新日期:2008-04-01 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
pub_type: 杂志文章
doi:10.1007/s10548-017-0560-4
更新日期:2017-09-01 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
pub_type: 杂志文章
doi:10.1007/s10548-014-0358-6
更新日期:2014-11-01 00:00:00
abstract::In Autism Spectrum Disorders (ASD), impaired response inhibition and lack of adaptation are hypothesized to underlie core ASD symptoms, such as social communication and repetitive, stereotyped behavior. Thus, the aim of the present study was to compare neural correlates of inhibition, post-error adaptation, and reacti...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-020-00765-6
更新日期:2020-05-01 00:00:00
abstract::Intracortical microstimulation and single cell recordings in non-human primates showed that both, muscles and movements are represented in primary motor cortex (M1). This was also suggested in humans using electrophysiological and neuroimaging techniques. Transcranial magnetic stimulation (TMS) thus far was used to st...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-013-0289-7
更新日期:2014-03-01 00:00:00
abstract::Reaction time (RT), the most common measure of CNS efficiency, shows intra- and inter-individual variability. This may be accounted for by hemispheric specialization, individual neuroanatomy, and transient functional fluctuations between trials. To explore RT on these three levels, ERPs were measured in a visual 4-cho...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-016-0473-7
更新日期:2016-07-01 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
pub_type: 杂志文章
doi:10.1007/s10548-020-00788-z
更新日期:2020-09-01 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
pub_type: 杂志文章
doi:10.1007/s10548-018-0676-1
更新日期:2019-01-01 00:00:00
abstract::Early, middle and late latency somatosensory evoked potentials (SEPs) elicited by cutaneous electrical stimulation (painful vs. non-painful) of right and left hands were recorded. The aims were to study (1) if lifelong use of dominant right hand would result in different SEP topographies compared to non-dominant left ...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1023/a:1026655001804
更新日期:2000-01-01 00:00:00
abstract::Quantitative EEG (qEEG) has modified our understanding of epileptic seizures, shifting our view from the traditionally accepted hyper-synchrony paradigm toward more complex models based on re-organization of functional networks. However, qEEG measurements are so far rarely considered during the clinical decision-makin...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/s10548-014-0370-x
更新日期:2015-03-01 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
pub_type: 杂志文章
doi:10.1007/s10548-018-0672-5
更新日期:2019-01-01 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
pub_type: 杂志文章
doi:10.1007/BF01128991
更新日期:1993-04-01 00:00:00
abstract::Topographical analysis of cerebral electrical activity was performed in 44 patients with hepatic encephalopathy. These patients were classified in 5 groups according to clinical criteria. Eight healthy subjects were used as a control group. All were studied in an awake, eyes closed, condition and some [Control Group (...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/BF01140590
更新日期:1990-04-01 00:00:00
abstract::Brain topography mapping is a useful technique for the representation of electrical activity recorded on the scalp. It clarifies spatial and temporal relationships between different cortical areas. In this work we propose a system which includes several enhancements over those previously proposed, such as an optimised...
journal_title:Brain topography
pub_type: 杂志文章
doi:10.1007/BF01184837
更新日期:1994-10-01 00:00:00