All Outputs (12)

Neuromelanin-MRI to Quantify and Track Nigral Depigmentation in Parkinson's Disease: A Multicenter Longitudinal Study Using Template-Based Standardized Analysis (2022)
Journal Article
Xing, Y., Sapuan, A. H., Martín-Bastida, A., Naidu, S., Tench, C., Evans, J., …Auer, D. P. (2022). Neuromelanin-MRI to Quantify and Track Nigral Depigmentation in Parkinson's Disease: A Multicenter Longitudinal Study Using Template-Based Standardized Analysis. Movement Disorders, 37(5), 1028-1039. https://doi.org/10.1002/mds.28934

Background: Clinical diagnosis and monitoring of Parkinson's disease (PD) remain challenging because of the lack of an established biomarker. Neuromelanin-magnetic resonance imaging (NM-MRI) is an emerging biomarker of nigral depigmentation indexing... Read More about Neuromelanin-MRI to Quantify and Track Nigral Depigmentation in Parkinson's Disease: A Multicenter Longitudinal Study Using Template-Based Standardized Analysis.

Brain perfusion patterns are altered in chronic knee pain: a spatial covariance analysis of arterial spin labelling MRI (2020)
Journal Article
Iwabuchi, S. J., Xing, Y., Cottam, W. J., Drabek, M. M., Tadjibaev, A., Fernandes, G. S., …Auer, D. P. (2020). Brain perfusion patterns are altered in chronic knee pain: a spatial covariance analysis of arterial spin labelling MRI. PAIN, 161(6), 1255-1263. https://doi.org/10.1097/j.pain.0000000000001829

Chronic musculoskeletal pain is a common problem globally. Current evidence suggests that maladapted central pain pathways are associated with pain chronicity, for example, in postoperative pain after knee replacement. Other factors such as low mood,... Read More about Brain perfusion patterns are altered in chronic knee pain: a spatial covariance analysis of arterial spin labelling MRI.

FU-Net: Multi-class Image Segmentation Using Feedback Weighted U-Net (2019)
Book Chapter
Jafari, M., Li, R., Xing, Y., Auer, D., Francis, S., Garibaldi, J., & Chen, X. (2019). FU-Net: Multi-class Image Segmentation Using Feedback Weighted U-Net. In Image and Graphics: 10th International Conference, ICIG 2019, Beijing, China, August 23–25, 2019, Proceedings, Part II (529-537). Springer Verlag. https://doi.org/10.1007/978-3-030-34110-7_44

© 2019, Springer Nature Switzerland AG. In this paper, we present a generic deep convolutional neural network (DCNN) for multi-class image segmentation. It is based on a well-established supervised end-to-end DCNN model, known as U-net. U-net is firs... Read More about FU-Net: Multi-class Image Segmentation Using Feedback Weighted U-Net.

Relationship between neuromelanin and dopamine terminals within the Parkinson’s nigrostriatal system (2019)
Journal Article
Martín-Bastida, A., Lao-Kaim, N. P., Roussakis, A. A., Searle, G. E., Xing, Y., Gunn, R. N., …Piccini, P. (2019). Relationship between neuromelanin and dopamine terminals within the Parkinson’s nigrostriatal system. Brain, 142(7), 2023–2036. https://doi.org/10.1093/brain/awz120

© 2019 The Author(s). All rights reserved. Parkinson's disease is characterized by the progressive loss of pigmented dopaminergic neurons in the substantia nigra and associated striatal deafferentation. Neuromelanin content is thought to reflect the... Read More about Relationship between neuromelanin and dopamine terminals within the Parkinson’s nigrostriatal system.

Coordinate based meta-analysis of motor functional imaging in Parkinson's: disease-specific patterns and modulation by dopamine replacement and deep brain stimulation (2019)
Journal Article
Xing, Y., Tench, C., Wongwandee, M., Schwarz, S., Bajaj, N., & Auer, D. (2020). Coordinate based meta-analysis of motor functional imaging in Parkinson's: disease-specific patterns and modulation by dopamine replacement and deep brain stimulation. Brain Imaging and Behavior, 14(4), 1263–1280. https://doi.org/10.1007/s11682-019-00061-3

Objective To investigate factors affecting the pattern of motor brain activation reported in people with Parkinson’s (PwP), aiming to differentiate disease-specific features from treatment effects. Methods A co-ordinate-based-meta-analysis (CBMA... Read More about Coordinate based meta-analysis of motor functional imaging in Parkinson's: disease-specific patterns and modulation by dopamine replacement and deep brain stimulation.

Lifespan pigmentation changes of the substantia nigra detected by neuromelanin-sensitive MRI (2018)
Journal Article
Xing, Y., Sapuan, A., Dineen, R., & Auer, D. P. (2018). Lifespan pigmentation changes of the substantia nigra detected by neuromelanin-sensitive MRI. Movement Disorders, 33(11), 1792-1799. https://doi.org/10.1002/mds.27502

Background: Neuromelanin is a pigment with strong iron-chelating properties preferentially found in dopaminergic neurons of the substantia nigra, pars compacta (SNpc). Parkinson's disease is characterized by pronounced, MRI detectable neuromelanin lo... Read More about Lifespan pigmentation changes of the substantia nigra detected by neuromelanin-sensitive MRI.

Parkinson's disease related signal change in the nigrosomes 1–5 and the substantia nigra using T2* weighted 7T MRI (2018)
Journal Article
Schwarz, S. T., Mougin, O., Xing, Y., Blazejewska, A., Bajaj, N., Auer, D. P., & Gowland, P. (in press). Parkinson's disease related signal change in the nigrosomes 1–5 and the substantia nigra using T2* weighted 7T MRI. NeuroImage: Clinical, 19, https://doi.org/10.1016/j.nicl.2018.05.027

Improved markers for the progression of Parkinson's disease (PD) are required. Previous work has proven that iron dependent MRI scans can detect the largest Nigrosome (N1) within the substantia nigra (SN) pars compacta and changes in PD. Histopatholo... Read More about Parkinson's disease related signal change in the nigrosomes 1–5 and the substantia nigra using T2* weighted 7T MRI.

Patterns of grey matter loss associated with motor subscores in early Parkinson's disease (2017)
Journal Article
Li, X., Xing, Y., Martin-Bastida, A., Piccini, P., & Auer, D. P. (in press). Patterns of grey matter loss associated with motor subscores in early Parkinson's disease. NeuroImage: Clinical, 17, https://doi.org/10.1016/j.nicl.2017.11.009

Classical motor symptoms of Parkinson's disease (PD) such as tremor, rigidity, bradykinesia, and axial symptoms are graded in the Movement Disorders Society Unified Parkinson's Disease Rating Scale (MDS-UPDRS) III. It is yet to be ascertained whether... Read More about Patterns of grey matter loss associated with motor subscores in early Parkinson's disease.

Limbic grey matter changes in early Parkinson's disease (2017)
Journal Article
Li, X., Xing, Y., Schwarz, S. T., & Auer, D. P. (in press). Limbic grey matter changes in early Parkinson's disease. Human Brain Mapping, https://doi.org/10.1002/hbm.23610

The purpose of this study was to investigate local and network related changes of limbic grey matter in early Parkinson’s disease (PD) and their interrelation with non-motor symptom severity. We applied voxel-based morphometric methods in 538 T1 MRI... Read More about Limbic grey matter changes in early Parkinson's disease.

In Vivo Assessment of Brainstem Depigmentation in Parkinson Disease: Potential as a Severity Marker for Multicenter Studies (2016)
Journal Article
Schwarz, S. T., Xing, Y., Tomar, P., Bajaj, N., & Auer, D. P. (2017). In Vivo Assessment of Brainstem Depigmentation in Parkinson Disease: Potential as a Severity Marker for Multicenter Studies. Radiology, 283(3), 789-798. https://doi.org/10.1148/radiol.2016160662

Purpose: To investigate the pattern of neuromelanin signal intensity loss within the substantia nigra pars compacta (SNpc), locus coeruleus, and ventral tegmental area in Parkinson disease (PD); the specific aims were (a) to study regional magnetic... Read More about In Vivo Assessment of Brainstem Depigmentation in Parkinson Disease: Potential as a Severity Marker for Multicenter Studies.

The influence of spatial pattern on visual short-term memory for contrast (2014)
Journal Article
Xing, Y., Ledgeway, T., McGraw, P. V., & Schluppeck, D. (2014). The influence of spatial pattern on visual short-term memory for contrast. Attention, Perception, and Psychophysics, 76(7), https://doi.org/10.3758/s13414-014-0671-x

Several psychophysical studies of visual short-term memory (VSTM) have shown high-fidelity storage capacity for many properties of visual stimuli. On judgments of the spatial frequency of gratings, for example, discrimination performance does not dec... Read More about The influence of spatial pattern on visual short-term memory for contrast.

Decoding working memory of stimulus contrast in early visual cortex (2013)
Journal Article
Xing, Y., Ledgeway, T., McGraw, P. V., & Schluppeck, D. (2013). Decoding working memory of stimulus contrast in early visual cortex. Journal of Neuroscience, 33(25), https://doi.org/10.1523/JNEUROSCI.3754-12.2013

Most studies of the early stages of visual analysis (V1-V3) have focused on the properties of neurons that support processing of elemental features of a visual stimulus or scene, such as local contrast, orientation, or direction of motion. Recent evi... Read More about Decoding working memory of stimulus contrast in early visual cortex.