Browsing BCBL-Publications by Author "Lerma-Usabiaga, Garikoitz"
Now showing items 1-16 of 16
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A probabilistic atlas of the human thalamic nuclei combining ex vivo MRI and histology
Iglesias, Juan Eugenio; Insausti, Ricardo; Lerma-Usabiaga, Garikoitz; Bocchetta, Martina; Van Leemput, Koen; Greve, Douglas N.; Van der Kouwe, Andre; the Alzheimer’s Disease Neuroimaging Initiative; Fischl, Bruce; Caballero Gaudes, César; Paz-Alonso, Pedro M. (NeuroImage, 2018)The human thalamus is a brain structure that comprises numerous, highly specific nuclei. Since these nuclei are known to have different functions and to be connected to different areas of the cerebral cortex, it is of great ... -
A validation framework for neuroimaging software: The case of population receptive fields
Lerma-Usabiaga, Garikoitz; Benson, Noah; Winawer, Jonathan; Wandell, Brian A. (PLOS COMPUTATIONAL BIOLOGY, 2020)Neuroimaging software methods are complex, making it a near certainty that some implementations will contain errors. Modern computational techniques (i.e., public code and data repositories, continuous integration, ... -
Accurate Bayesian segmentation of thalamic nuclei using diffusion MRI and an improved histological atlas
Tregidgo, Henry F.J.; Soskic, Sonja; Althonayan, Juri; Maffei, Chiara; Van Leemput, Koen; Golland, Polina; Insausti, Ricardo; Lerma-Usabiaga, Garikoitz; Caballero-Gaudes, César; Paz-Alonso, Pedro M.; Yendiki, Anastasia; Alexander, Daniel C.; Bocchetta, Martina; Rohrer, Jonathan D.; Iglesias, Juan Eugenio; Alzheimer’s Disease Neuroimaging Initiative (ELSEVIER, 2023)The human thalamus is a highly connected brain structure, which is key for the control of numerous functions and is involved in several neurological disorders. Recently, neuroimaging studies have increasingly focused ... -
Automated Segmentation of the Human Hippocampus Along Its Longitudinal Axis
Lerma-Usabiaga, Garikoitz; Iglesias, Juan Eugenio; Insausti, Ricardo; Greve, Douglas N.; Paz-Alonso, Pedro M. (Human Brain Mapping, 2016)The human hippocampal formation is a crucial brain structure for memory and cognitive function that is closely related to other subcortical and cortical brain regions. Recent neuroimaging studies have revealed differences ... -
Characterizing Spatiotemporal Population Receptive Fields in Human Visual Cortex with fMRI
Kim, Insub; Kupers, Eline R.; Lerma-Usabiaga, Garikoitz; Grill-Spector, Kalanit (Jneurosci, 2024)The use of fMRI and computational modeling has advanced understanding of spatial characteristics of population receptive fields (pRFs) in human visual cortex. However, we know relatively little about the spatiotemporal ... -
Converging evidence for functional and structural segregation within the left ventral occipitotemporal cortex in reading
Lerma-Usabiaga, Garikoitz; Carreiras, Manuel; Paz-Alonso, Pedro M. (Proceedings of the National Academy of Sciences of the United States of America (PNAS), 2018)The ventral occipitotemporal cortex (vOTC) is crucial for recognizing visual patterns, and previous evidence suggests that there may be different subregions within the vOTC involved in the rapid identification of word ... -
Data-science ready, multisite, human diffusion MRI whitematter- tract statistics
Lerma-Usabiaga, Garikoitz; Mukherjee, Pratik; Perry, Michael L.; Wandell, Brian A. (Scientific Data, 2020)The white matter tracts in the living human brain are critical for healthy function, and the diffusion MRI measured in these tracts is correlated with diverse behavioral measures. The technical skills required to analyze ... -
High-Resolution Tractography Protocol to Investigate the Pathways between Human Mediodorsal Thalamic Nucleus and Prefrontal Cortex
Mengxing, Liu; Lerma-Usabiaga, Garikoitz; Clascá, Francisco; Paz-Alonso, Pedro M. (Jneurosci, 2023)Animal studies have established that the mediodorsal nucleus (MD) of the thalamus is heavily and reciprocally connected with all areas of the prefrontal cortex (PFC). In humans, however, these connections are difficult to ... -
Intrasession and Intersession Reproducibility of Artificial Scotoma pRF Mapping Results at Ultra- High Fields
Linhardt, David; Pawloff, Maximilian; Woletz, Michael; Hummer, Allan; Tik, Martin; Vasileiadi, Maria; Ritter, Markus; Lerma-Usabiaga, Garikoitz; Schmidt-Erfurth, Ursula; Windischberger, Christian (Society for Neuroscience, 2022)Functional magnetic resonance imaging (fMRI) combined with population receptive field (pRF) mapping allows for associating positions on the visual cortex to areas on the visual field. Apart from applications in ... -
Population Receptive Field Shapes in Early Visual Cortex Are Nearly Circular
Lerma-Usabiaga, Garikoitz; Winawer, Jonathan; Wandell, Brian A. (The Journal of Neuroscience, 2021)The visual field region where a stimulus evokes a neural response is called the receptive field (RF). Analytical tools combined with functional MRI (fMRI) can estimate the RF of the population of neurons within a voxel. ... -
Replication and generalization in applied neuroimaging
Lerma-Usabiaga, Garikoitz; Mukherjee, Pratik; Ren, Zhimei; Perry, Michael L.; Wandell, Brian A. (NeuroImage, 2019)There is much interest in translating neuroimaging findings into meaningful clinical diagnostics. The goal of scientific discoveries differs from clinical diagnostics. Scientific discoveries must replicate under a specific ... -
Reproducible protocol to obtain and measure first-order relay human thalamic white-matter tracts
Liu, Mengxing; Lerma-Usabiaga, Garikoitz; Clascá, Francisco; Paz-Alonso, Pedro M. (ELSEVIER, 2022)The “primary ”or “first-order relay ”nuclei of the thalamus feed the cerebral cortex with information about on- going activity in the environment or the subcortical motor systems. Because of the small size of these nuclei ... -
Retrospective Head Motion Estimation in Structural Brain MRI with 3D CNNs
Iglesias, Juan Eugenio; Lerma-Usabiaga, Garikoitz; Garcia-Peraza-Herrera, Luis C.; Martinez, Sara; Paz-Alonso, Pedro M. (Medical Image Computing and Computer-Assisted Intervention − MICCAI 2017. Lecture Notes in Computer Science, 2017)Head motion is one of the most important nuisance variables in neuroimaging, particularly in studies of clinical or special populations, such as children. However, the possibility of estimating motion in structural MRI is ... -
Separate lanes for adding and reading in the white matter highways of the human brain
Grotheer, Mareike; Zhen, Zonglei; Lerma-Usabiaga, Garikoitz; Grill-Spector, Kalanit (Nature Communications, 2019)Math and reading involve distributed brain networks and have both shared (e.g. encoding of visual stimuli) and dissociated (e.g. quantity processing) cognitive components. Yet, to date, the shared vs. dissociated gray ... -
Simultaneous Bayesian correction of slab boundary artifacts and bias field for high resolution ex vivo MRI
Iglesias, J. Eugenio; Paz-Alonso, Pedro M.; Lerma-Usabiaga, Garikoitz; Insausti, Ricardo; Miller, K.; Caballero Gaudes, César (IEEE International Symposium on Biomedical Imaging (ISBI), 2016)Multi-slab MRI overcomes some of the hardware limitations of today's clinical scanners (e.g., memory size), enabling the acquisition of ultra-high resolution ex vivo MRI of the whole human brain with high SNR efficiency. ... -
The human connectome project for disordered emotional states: Protocol and rationale for a research domain criteria study of brain connectivity in young adult anxiety and depression
Tozzi, Leonardo; Staveland, Brooke; Holt-Gosselin, Bailey; Chesnut, Megan; Chang, Sarah E.; Choi, David; Shiner, Melissa; Wu, Hua; Lerma-Usabiaga, Garikoitz; Sporns, Olaf; Barch, Deanna M.; Gotlib, Ian H.; Hastie, Trevor J.; Kerr, Adam B.; Poldrack, Russell A.; Wandell, Brian A.; Wintermark, Max; Williams, Leanne M. (NeuroImage, 2020)Through the Human Connectome Project (HCP) our understanding of the functional connectome of the healthy brain has been dramatically accelerated. Given the pressing public health need, we must increase our understanding ...