What can we learn from T2* maps of the cortex?

abstract：:Several methods exist and are frequently used to quantify grey matter (GM) atrophy in multiple sclerosis (MS). Fundamental to all available techniques is the accurate segmentation of GM in the brain, a difficult task confounded even further by the pathology present in the brains of MS patients. In this paper, we exami...

journal_title：NeuroImage

authors： Derakhshan M,Caramanos Z,Giacomini PS,Narayanan S,Maranzano J,Francis SJ,Arnold DL,Collins DL

更新日期：2010-10-01 00:00:00

abstract：BACKGROUND:Once considered mere noise, fMRI-based functional connectivity has become a major neuroscience tool in part due to early studies demonstrating its reliability. These fundamental studies revealed only the tip of the iceberg; over the past decade, many test-retest reliability studies have continued to add nuan...

journal_title：NeuroImage

authors： Noble S,Scheinost D,Constable RT

更新日期：2019-12-01 00:00:00

abstract：:Despite there being an increasing number of installations of ultra high field MR systems (>3T) in clinical environments, no functional patient investigations have yet examined possible benefits for functional diagnostics. Here we performed presurgical localization of the primary motor hand area on 3T and 7T Siemens sc...

journal_title：NeuroImage

authors： Beisteiner R,Robinson S,Wurnig M,Hilbert M,Merksa K,Rath J,Höllinger I,Klinger N,Marosi Ch,Trattnig S,Geissler A

更新日期：2011-08-01 00:00:00

abstract：:Anesthesia-induced changes in functional connectivity and cerebral blow flow (CBF) in large-scale brain networks have emerged as key markers of reduced consciousness. However, studies of functional connectivity disagree on which large-scale networks are altered or preserved during anesthesia, making it difficult to fi...

journal_title：NeuroImage

authors： Qiu M,Scheinost D,Ramani R,Constable RT

更新日期：2017-03-01 00:00:00

abstract：:We report on the initial imaging findings with a new technique for the simultaneous and continuous acquisition of functional MRI data and EEG recording. Thirty-seven stereotyped interictal epileptiform discharges (spikes) were identified on EEG recorded continuously during the fMRI acquisition on a patient with epilep...

journal_title：NeuroImage

authors： Lemieux L,Salek-Haddadi A,Josephs O,Allen P,Toms N,Scott C,Krakow K,Turner R,Fish DR

更新日期：2001-09-01 00:00:00

abstract：:Spatial normalization and segmentation of infant brain MRI data based on adult or pediatric reference data may not be appropriate due to the developmental differences between the infant input data and the reference data. In this study we have constructed infant templates and a priori brain tissue probability maps base...

journal_title：NeuroImage

authors： Altaye M,Holland SK,Wilke M,Gaser C

更新日期：2008-12-01 00:00:00

abstract：:Modeling the relationships among brain regions of interest (ROIs) carries unique potential to explicate how the brain orchestrates information processing. However, hurdles arise when using functional MRI data. Variation in ROI activity contains sequential dependencies and shared influences on synchronized activation. ...

journal_title：NeuroImage

authors： Gates KM,Molenaar PC,Hillary FG,Ram N,Rovine MJ

更新日期：2010-04-15 00:00:00

abstract：:The amygdala (AMG) has been repeatedly implicated in the processing of threatening and negatively valenced stimuli and multiple fMRI paradigms have reported personality, genetic, and psychopathological associations with individual differences in AMG activation in these paradigms. Yet the interchangeability of activati...

journal_title：NeuroImage

authors： Villalta-Gil V,Hinton KE,Landman BA,Yvernault BC,Perkins SF,Katsantonis AS,Sellani CL,Lahey BB,Zald DH

更新日期：2017-02-01 00:00:00

abstract：:When two incompatible monocular images compete for perceptual dominance, one can dominate awareness while the other is suppressed and invisible. It has been suggested that binocular suppression of this kind involves competitive neuronal interactions at multiple levels of the visual processing hierarchy. Here we asked ...

journal_title：NeuroImage

authors： Sterzer P,Jalkanen L,Rees G

更新日期：2009-07-01 00:00:00

abstract：:Surface-based cortical registration methods that are driven by geometrical features, such as folding, provide sub-optimal alignment of many functional areas due to variable correlation between cortical folding patterns and function. This has led to the proposal of new registration methods using features derived from f...

journal_title：NeuroImage

authors： Robinson EC,Jbabdi S,Glasser MF,Andersson J,Burgess GC,Harms MP,Smith SM,Van Essen DC,Jenkinson M

更新日期：2014-10-15 00:00:00

abstract：:Owing to its intrinsic characteristics, spatiotemporally encoded (SPEN) imaging is less sensitive to adverse effects due to field inhomogeneity in comparison with echo planar imaging, a feature highly desired for functional, diffusion, and real-time MRI. However, the quality of images obtained with SPEN MRI is still d...

journal_title：NeuroImage

authors： Li J,Chen L,Cai S,Cai C,Zhong J,Chen Z

更新日期：2015-01-15 00:00:00

abstract：:In sentence processing, storage and ordering of the verb and its arguments (subject and object) are core tasks. Their cortical representation is a matter of ongoing debate, and it is unclear whether prefrontal activations in neuroimaging studies on sentence processing reflect the storage of arguments or their ordering...

journal_title：NeuroImage

authors： Meyer L,Obleser J,Anwander A,Friederici AD

更新日期：2012-09-01 00:00:00

abstract：:Intraoperative Thermal Imaging (ITI) is a novel neuroimaging technique that can potentially locate the margins of primary and metastatic brain tumors. As a result, the additional real-time anatomical and pathophysiological information may significantly contribute to an improved extent of tumor resection. Our objective...

journal_title：NeuroImage

authors： Kateb B,Yamamoto V,Yu C,Grundfest W,Gruen JP

更新日期：2009-08-01 00:00:00

abstract：:Subjective feelings of actual/ideal self-discrepancy vary across individuals and influence one's own affective states. However, the neural correlates of actual/ideal self-discrepancy and their genetic individual differences remain unknown. We investigated neural correlates of actual/ideal self-discrepancy and their as...

journal_title：NeuroImage

authors： Shi Z,Ma Y,Wu B,Wu X,Wang Y,Han S

更新日期：2016-01-01 00:00:00

abstract：:Spatial navigation is a crucial ability for living. Previous studies have shown that males are better at navigation than females, but little is known about the neural basis underlying the sex differences. In this study, we investigated whether cortical scene processing in three well-established scene-selective regions...

journal_title：NeuroImage

authors： Kong XZ,Huang Y,Hao X,Hu S,Liu J

更新日期：2017-09-01 00:00:00

abstract：:Studies of structural brain connectivity have revealed many intriguing features of complex cortical networks. To advance integrative theories of cortical organization, an understanding is required of how connectivity interrelates with other aspects of brain structure. Recent studies have suggested that interareal conn...

journal_title：NeuroImage

authors： Beul SF,Hilgetag CC

更新日期：2019-04-01 00:00:00

abstract：:Recent studies of blood oxygenation level dependent (BOLD) signal responses averaged over a region of interest have demonstrated that the response is nonlinear with respect to stimulus duration. Specifically, shorter duration stimuli produce signal changes larger than expected from a linear system. The focus of this s...

journal_title：NeuroImage

authors： Birn RM,Saad ZS,Bandettini PA

更新日期：2001-10-01 00:00:00

abstract：:Previous studies demonstrated that visual perception of handwritten letters activates the left primary motor cortex more strongly than printed letters. Here, we used EEG to record cortical responses evoked by single letters to directly test if their visual processing is actually influenced by their motor content. We m...

journal_title：NeuroImage

authors： Wamain Y,Tallet J,Zanone PG,Longcamp M

更新日期：2012-11-15 00:00:00

abstract：:Cerebral hemispheric specialization has traditionally been described using a lateralization index (LI). Such an index, however, shows a very severe threshold dependency and is prone to be influenced by statistical outliers. Reliability of this index thus has been inherently weak, and the assessment of this reliability...

journal_title：NeuroImage

authors： Wilke M,Schmithorst VJ

更新日期：2006-11-01 00:00:00

abstract：:Models of action selection postulate the critical involvement of the subthalamic nucleus (STN), especially in reactive inhibition processes when inappropriate responses to a sudden stimulus must be overridden. The STN could also play a key role during proactive inhibition, when subjects prepare to potentially suppress...

journal_title：NeuroImage

authors： Benis D,David O,Lachaux JP,Seigneuret E,Krack P,Fraix V,Chabardès S,Bastin J

更新日期：2014-05-01 00:00:00

abstract：:We used functional magnetic resonance imaging (fMRI) to assess cortical activations associated with increasing task difficulty (TD) in a visuospatial paired associates learning task. Encoding and retrieval were examined when 100% successful retrieval of three, four, or six object-location pairs had been attained (thus...

journal_title：NeuroImage

authors： Gould RL,Brown RG,Owen AM,ffytche DH,Howard RJ

更新日期：2003-10-01 00:00:00

abstract：:Although much is now known about eye movement detection, little is known about the higher cognitive processes involved in joint attention. We developed video stimuli which when watched, engender an experience of joint attention in the observer. This allowed us to compare an experience of joint attention to nonjoint at...

journal_title：NeuroImage

authors： Williams JH,Waiter GD,Perra O,Perrett DI,Whiten A

更新日期：2005-03-01 00:00:00

abstract：:The retina is nourished by two unique (retinal and choroidal) circulations. The lack of depth-resolved blood volume (BV) imaging techniques hampers investigation of vascular-specific regulation of the retina in vivo. This study presents a high-resolution, laminar-specific magnetic resonance imaging (MRI) study to imag...

journal_title：NeuroImage

authors： Nair G,Tanaka Y,Kim M,Olson DE,Thulé PM,Pardue MT,Duong TQ

更新日期：2011-01-15 00:00:00

abstract：:Hippocampal volume reductions are widely observed in schizophrenia. Some studies suggest anterior hippocampal regions are more susceptible and associated with frontal lobe dysfunctions, while others implicate posterior regions. Using high-resolution MR images and novel computational image analysis methods, we identifi...

journal_title：NeuroImage

authors： Narr KL,Thompson PM,Szeszko P,Robinson D,Jang S,Woods RP,Kim S,Hayashi KM,Asunction D,Toga AW,Bilder RM

更新日期：2004-04-01 00:00:00

abstract：:Insights into memory retrieval processes can be obtained by examining graded recall success, specifically, tip-of-the-tongue (TOT) and feeling-of-knowing (FOK) states. TOT is defined as a recall failure accompanied by a strong feeling of imminent retrieval, and FOK as a recall failure accompanied by a feeling of futur...

journal_title：NeuroImage

authors： Maril A,Simons JS,Weaver JJ,Schacter DL

更新日期：2005-02-15 00:00:00

abstract：:Subtle changes in white matter (WM) microstructure have been associated with normal aging and neurodegeneration. To study these associations in more detail, it is highly important that the WM tracts can be accurately and reproducibly characterized from brain diffusion MRI. In addition, to enable analysis of WM tracts ...

journal_title：NeuroImage

authors： Li B,de Groot M,Steketee RME,Meijboom R,Smits M,Vernooij MW,Ikram MA,Liu J,Niessen WJ,Bron EE

更新日期：2020-09-01 00:00:00

abstract：:The Visual Word Form Area (VWFA) is part of the left ventral visual stream that underlies the invariant identification of visual words. It remains debated whether this region is truly selective for words relative to common objects; why this particular part of the visual system is reproducibly engaged in reading; and w...

journal_title：NeuroImage

authors： Szwed M,Dehaene S,Kleinschmidt A,Eger E,Valabrègue R,Amadon A,Cohen L

更新日期：2011-05-01 00:00:00

abstract：:Reward and punishment shape behavior, but the mechanisms underlying their effect on skill learning are not well understood. Here, we tested whether the functional connectivity of premotor cortex (PMC), a region known to be critical for learning of sequencing skills, is altered after training when reward or punishment ...

journal_title：NeuroImage

authors： Steel A,Silson EH,Stagg CJ,Baker CI

更新日期：2019-04-01 00:00:00

abstract：:The human visual system is able to distinguish naturally occurring categories with exceptional speed and accuracy. At the same time, it exhibits substantial plasticity, permitting the seamless and fast learning of entirely novel categories. Here we investigate the interplay of these two processes by asking how categor...

journal_title：NeuroImage

authors： Kietzmann TC,Ehinger BV,Porada D,Engel AK,König P

更新日期：2016-07-01 00:00:00

abstract：:Micro-electrocorticograph (μECoG) arrays offer the flexibility to record local field potentials (LFPs) from the surface of the cortex, using high density electrodes that are sub-mm in diameter. Research to date has not provided conclusive evidence for the underlying signal generation of μECoG recorded LFPs, or if μECo...

journal_title：NeuroImage

authors： Pizarro R,Richner T,Brodnick S,Thongpang S,Williams J,Van Veen B

更新日期：2017-12-01 00:00:00