Abstract:
:Diffusion magnetic resonance imaging (dMRI) is a compelling tool for investigating the structure and geometry of brain tissue based on indirect measurement of the diffusion anisotropy of water. Recent developments in global top-down tractogram optimizations enable the estimation of streamline weights, which characterize the connection between gray matter areas. In this work, the intra-axonal cross-sectional area coverage of the gray-to-white matter interface was examined by intersecting tractography streamlines with cortical regions of interest. The area coverage is the ratio of streamline weights divided by the surface area at the gray-to-white matter interface and assesses the estimated percentage which is covered by intra-axonal space. A high correlation (r = 0.935) between streamline weights and the cortical surface area was found across all regions of interest in all subjects. The variance across different cortical regions exhibits similarities to myelin maps. Additionally, we examined the effect of different diffusion gradient subsets at a lower, clinically feasible spatial resolution. Subsampling of the initial high-resolution diffusion dataset did not alter the tendency of the area coverage at the gray-to-white matter interface across cortical areas and subjects. However, single-shell acquisition schemes with lower b-values lead to a steady increase in area coverage in comparison to the full acquisition scheme at high resolution.
journal_name
Front Neuroscijournal_title
Frontiers in neuroscienceauthors
Sommer S,Kozerke S,Seifritz E,Staempfli Pdoi
10.3389/fnins.2017.00729subject
Has Abstractpub_date
2017-12-22 00:00:00pages
729eissn
1662-4548issn
1662-453Xjournal_volume
11pub_type
杂志文章abstract::Intermittent theta burst stimulation (iTBS), a patterned repetitive transcranial magnetic stimulation, was applied over the posterior superior temporal sulcus (pSTS) or dorsolateral prefrontal cortex (DLPFC) to explore its impact in adults with autism spectrum disorder (ASD). Among 25 adults with ASD, 19 (mean age: 20...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2017.00255
更新日期:2017-05-09 00:00:00
abstract:Background:A number of mental illness is often re-diagnosed to be bipolar disorder (BD). Furthermore, the prefronto-limbic-striatal regions seem to be associated with the main dysconnectivity of BD. Functional connectivity is potentially an appropriate objective neurobiological marker that can assist with BD diagnosis....
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.563368
更新日期:2020-10-20 00:00:00
abstract::The subventricular zone (SVZ) contains neural stem cells (NSCs) that generate new neurons throughout life. Many brain diseases stimulate NSCs proliferation, neuronal differentiation and homing of these newborns cells into damaged regions. However, complete cell replacement has never been fully achieved. Hence, the ide...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00142
更新日期:2014-06-16 00:00:00
abstract::The comprehension of fluent speech in one's native language requires that listeners integrate the detailed acoustic-phonetic information available in the sound signal with linguistic knowledge. This interplay is especially apparent in the phoneme restoration effect, a phenomenon in which a missing phoneme is "restored...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00134
更新日期:2014-06-04 00:00:00
abstract::While the adult human brain has approximately 8.8 × 10(10) neurons, this number is dwarfed by its 1 × 10(15) synapses. From the point of view of neuromorphic engineering and neural simulation in general this makes the simulation of these synapses a particularly complex problem. SpiNNaker is a digital, neuromorphic arc...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2016.00420
更新日期:2016-09-14 00:00:00
abstract::Alzheimer's disease (AD) and Type 2 Diabetes Mellitus (T2DM) are two of the most prevalent diseases in the elderly population worldwide. A growing body of epidemiological studies suggest that people with T2DM are at a higher risk of developing AD. Likewise, AD brains are less capable of glucose uptake from the surroun...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2018.00383
更新日期:2018-06-08 00:00:00
abstract::Aversive memory is essential for survival, but in some situations its exacerbation can be potentially dangerous. There are several ways to modulate memory, among them, through stress-related hormones physiological release or administration of exogenous substances analogous to them. Recently, our group shown that a chr...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.01167
更新日期:2019-10-31 00:00:00
abstract::The brain is the most complex organ in the body, controlling our highest functions, as well as regulating myriad processes which incorporate the entire physiological system. The effects of prospective therapeutic entities on the brain and central nervous system (CNS) may potentially cause significant injury, hence, CN...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2018.00590
更新日期:2018-08-31 00:00:00
abstract::This paper presents a digital implementation of the Cascade of Asymmetric Resonators with Fast-Acting Compression (CAR-FAC) cochlear model. The CAR part simulates the basilar membrane's (BM) response to sound. The FAC part models the outer hair cell (OHC), the inner hair cell (IHC), and the medial olivocochlear effere...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00198
更新日期:2018-04-10 00:00:00
abstract:Purpose:Maternal and postnatal diets result in long-term changes in offspring brain and behavior; however, the key mediators of these developmental changes are not well-defined. In this study, we investigated the impact of maternal and post-weaning high-fat diets on gene expression of key components mediating hippocamp...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.527258
更新日期:2020-09-11 00:00:00
abstract::Subplate cells are among the first generated neurons in the mammalian cerebral cortex and have been implicated in the establishment of cortical wiring. In rodents some subplate neurons persist into adulthood. Here we would like to highlight several converging findings which suggest a novel secretory function of subpla...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2015.00100
更新日期:2015-03-26 00:00:00
abstract::This paper reports on a benchmark dataset acquired with a brain-computer interface (BCI) system based on the rapid serial visual presentation (RSVP) paradigm. The dataset consists of 64-channel electroencephalogram (EEG) data from 64 healthy subjects (sub1,…, sub64) while they performed a target image detection task. ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.568000
更新日期:2020-10-02 00:00:00
abstract::Brain-computer interfaces (BCIs), independent of the brain's normal output pathways, are attracting an increasing amount of attention as devices that extract neural information. As a typical type of BCI system, the steady-state visual evoked potential (SSVEP)-based BCIs possess a high signal-to-noise ratio and informa...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00079
更新日期:2018-02-15 00:00:00
abstract:Objective:To evaluate the effects of long-term High-definition transcranial direct current stimulation (HD-tDCS) over precuneus on the level of consciousness (LOC) and the relationship between Mismatch negativity (MMN) and the LOC over the therapy period in patients with Disorders of consciousness (DOCs). Methods:We e...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.00381
更新日期:2020-04-28 00:00:00
abstract:Purpose:Brain iron accumulation has been suggested as a pathomechanism in patients with type 2 diabetes mellitus (T2DM) with cognitive impairment. This research aims to examine the total-brain pattern of iron accumulation in relation to executive function decline in patients with T2DM by voxel-based quantitative suscep...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2020.606182
更新日期:2021-01-15 00:00:00
abstract::We investigated whether the C9orf72 repeat expansion is associated with specific clinical features, comorbidities, and prognosis in patients with amyotrophic lateral sclerosis (ALS). A cohort of 1417 ALS patients, diagnosed between January 1, 2009 and December 31, 2013 by 13 Italian ALS Referral Centers, was screened ...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.00485
更新日期:2019-05-17 00:00:00
abstract::Several studies of semantic memory in non-musical domains involving recognition of items from long-term memory have shown an age-related shift from the medial temporal lobe structures to the frontal lobe. However, the effects of aging on musical semantic memory remain unexamined. We compared activation associated with...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2015.00356
更新日期:2015-10-06 00:00:00
abstract::Motor recovery following nerve transfer surgery depends on the successful re-innervation of the new target muscle by regenerating axons. Cortical plasticity and motor relearning also play a major role during functional recovery. Successful neuromuscular rehabilitation requires detailed afferent feedback. Surface elect...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00906
更新日期:2018-12-04 00:00:00
abstract::Using BOLD functional magnetic resonance imaging (fMRI) techniques, we examined the relationships between activities in the neural systems elicited by the decision stage of the Iowa Gambling Task (IGT), and food choices of either vegetables or snacks high in fat and sugar. Twenty-three healthy normal weight adolescent...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2014.00350
更新日期:2014-11-04 00:00:00
abstract::Opioid abuse is now the primary cause of accidental deaths in the United States. Studies over several decades established the cyclical nature of abused drugs of choice, with a current resurgence of heroin abuse and, more recently, fentanyl's emergence as a major precipitant of drug-related deaths. To better understand...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00728
更新日期:2018-10-23 00:00:00
abstract::Autism Spectrum Disorder (ASD) is a common neurodevelopmental disorder with a strong but complex genetic component. Recent family based exome-sequencing strategies have identified recurrent de novo mutations at specific genes, providing strong evidence for ASD risk, but also highlighting the extreme genetic heterogene...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章,评审
doi:10.3389/fnins.2015.00477
更新日期:2015-12-17 00:00:00
abstract::A recent report claims that functional brain networks defined with resting-state functional magnetic resonance imaging (fMRI) can be recapitulated with correlated gene expression (i.e., high within-network tissue-tissue "strength fraction," SF) (Richiardi et al., 2015). However, the authors do not adequately control f...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2017.00412
更新日期:2017-07-18 00:00:00
abstract::The neurohormone oxytocin (OXT) has been found to mediate the regulation of complex socioemotional cognition in multiple ways both in humans and other animals. Recent studies have investigated the effects of OXT in different levels of analysis (from genetic to behavioral) chiefly targeting its impact on the social com...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2016.00271
更新日期:2016-06-14 00:00:00
abstract::The present study interrogated a quantitative trait locus (QTL) on Chr 4 associated with the population sizes of two types of bipolar cell in the mouse retina. This locus was identified by quantifying the number of rod bipolar cells and Type 2 cone bipolar cells across a panel of recombinant inbred (RI) strains of mic...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00876
更新日期:2018-12-03 00:00:00
abstract::Huntington Disease (HD) is a genetic neurodegenerative disorder characterized by broad types of cellular and molecular dysfunctions that may affect both neuronal and non-neuronal cell populations. Among all the molecular mechanisms underlying the complex pathogenesis of the disease, alteration of sphingolipids has bee...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2016.00457
更新日期:2016-10-06 00:00:00
abstract::Probability and risk are important factors for value-based decision making and optimal foraging. In order to survive in an unpredictable world, organisms must be able to assess the probability and risk attached to future events and use this information to generate adaptive behavior. Recent studies in non-human primate...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2011.00121
更新日期:2011-10-11 00:00:00
abstract::The mammalian brain is characterized by orderly spatial distribution of its cellular components, commonly referred to as topographical organization. The topography of cortical and subcortical maps is thought to represent functional or computational properties. In the present investigation, we have studied map transfor...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/neuro.01.1.1.016.2007
更新日期:2007-10-15 00:00:00
abstract::Cochlear outer hair cells (OHC) receive direct efferent feedback from the caudal auditory brainstem via the medial olivocochlear (MOC) bundle. This circuit provides the neural substrate for the MOC reflex, which inhibits cochlear amplifier gain and is believed to play a role in listening in noise and protection from a...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2017.00189
更新日期:2017-04-04 00:00:00
abstract::The aim of this study was to explore changes in intracellular ATP generation and tight junction protein expression during the course of brain edema induced by subacute poisoning of 1,2-dichloroethane (1,2-DCE). Mice were exposed to 1.2 g/m3 1,2-DCE for 3.5 h per day for 1, 2, or 3 days, namely group A, B, and C. Na+-K...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2018.00012
更新日期:2018-01-23 00:00:00
abstract::Voltage-gated calcium channels (VGCCs) are important mediators of pain hypersensitivity during inflammatory states, but their role in sensory nerve growth remains underexplored. Here, we assess the role of the N-type calcium channel Cav2.2 in the complete Freund's adjuvant (CFA) model of inflammatory pain. We demonstr...
journal_title:Frontiers in neuroscience
pub_type: 杂志文章
doi:10.3389/fnins.2019.01009
更新日期:2019-09-19 00:00:00