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Michael Petrides - One of the best experts on this subject based on the ideXlab platform.

  • An MRI based average macaque monkey Stereotaxic Atlas and space (MNI monkey space).
    NeuroImage, 2011
    Co-Authors: Stephen Frey, Lara Bailey, Michael Petrides, M Mallar Chakravarty, Deepak N. Pandya, D Louis Collins
    Abstract:

    In studies of the human brain, a standard Stereotaxic space such as the Montreal Neurological Institute (MNI space) is widely used to provide a common reference for the three-dimensional localization of functional activation foci and anatomical structures, enabling the comparison of results obtained across different studies. Here we present a standard macaque monkey brain MRI template that offers a common Stereotaxic reference frame to localize anatomical and functional information in an organized and reliable way for comparison across individual monkeys and studies. We have used MRI volumes from a group of 25 normal adult macaque monkeys (18 cynomolgus and 7 rhesus) to create a common standard macaque monkey brain as well as Atlases for each of these species separately. In addition, the digital macaque monkey volume was subjected to 3D volumetric analysis and comparison of brain structures between the individual brains and the average Atlas. Furthermore, we provide a means of transforming any macaque MRI volume into MNI monkey space coordinates in 3D using simple web based tools. Coordinates in MNI monkey space can also be transformed into the coordinate system of a detailed neuroanatomical paper Atlas (Paxinos et al., 2008), enabling researchers to identify and delineate cortical and subcortical structures in their individual macaque monkey brains.

  • Orbitofrontal sulci of the human and macaque monkey brain
    The Journal of Comparative Neurology, 2000
    Co-Authors: Mary M Chiavaras, Michael Petrides
    Abstract:

    The present study investigated the orbitofrontal sulci in 100 normal adult human cerebral hemispheres by using magnetic resonance images that were transformed into the standardized proportional Stereotaxic space most commonly used, that of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). The patterns formed by the individual sulci were then examined and compared with those of the less convoluted macaque monkey brain. Four sulci forming a similar sulcal pattern were identified in both species. The olfactory sulcus occupies the most medial position forming the lateral border of the gyrus rectus. Lateral to this, the medial, lateral, and transverse orbital sulci form a pattern often resembling an “H,” “X,” or “K.” These sulci divide the orbitofrontal cortex into four major gyri: the medial, lateral, anterior, and posterior orbital gyri. Three major types of sulcal pattern were identified in both species based on the arrangement of these orbital sulci. Additional sulci were observed in the human brain, creating more complex patterns. Probability maps were constructed for the four main orbitofrontal sulci of the human brain. These maps provide a statistical description of the variability of the location of the orbitofrontal sulci within the three-dimensional coordinate system of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). Because these maps may be directly compared with any image transformed into the same standardized space, they provide a valuable tool for identifying and describing the location of functional or structural changes in the orbitofrontal region of the human brain. J. Comp. Neurol. 422:35–54, 2000. © 2000 Wiley-Liss, Inc.

  • Orbitofrontal sulci of the human and macaque monkey brain.
    The Journal of Comparative Neurology, 2000
    Co-Authors: Mary M Chiavaras, Michael Petrides
    Abstract:

    The present study investigated the orbitofrontal sulci in 100 normal adult human cerebral hemispheres by using magnetic resonance images that were transformed into the standardized proportional Stereotaxic space most commonly used, that of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). The patterns formed by the individual sulci were then examined and compared with those of the less convoluted macaque monkey brain. Four sulci forming a similar sulcal pattern were identified in both species. The olfactory sulcus occupies the most medial position forming the lateral border of the gyrus rectus. Lateral to this, the medial, lateral, and transverse orbital sulci form a pattern often resembling an "H," "X," or "K." These sulci divide the orbitofrontal cortex into four major gyri: the medial, lateral, anterior, and posterior orbital gyri. Three major types of sulcal pattern were identified in both species based on the arrangement of these orbital sulci. Additional sulci were observed in the human brain, creating more complex patterns. Probability maps were constructed for the four main orbitofrontal sulci of the human brain. These maps provide a statistical description of the variability of the location of the orbitofrontal sulci within the three-dimensional coordinate system of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). Because these maps may be directly compared with any image transformed into the same standardized space, they provide a valuable tool for identifying and describing the location of functional or structural changes in the orbitofrontal region of the human brain.

Matthieu Keller - One of the best experts on this subject based on the ideXlab platform.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain
    Journal of Comparative Neurology, 2017
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain.
    The Journal of comparative neurology, 2016
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation. J. Comp. Neurol. 525:676-692, 2017. © 2016 Wiley Periodicals, Inc.

Mary M Chiavaras - One of the best experts on this subject based on the ideXlab platform.

  • Orbitofrontal sulci of the human and macaque monkey brain
    The Journal of Comparative Neurology, 2000
    Co-Authors: Mary M Chiavaras, Michael Petrides
    Abstract:

    The present study investigated the orbitofrontal sulci in 100 normal adult human cerebral hemispheres by using magnetic resonance images that were transformed into the standardized proportional Stereotaxic space most commonly used, that of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). The patterns formed by the individual sulci were then examined and compared with those of the less convoluted macaque monkey brain. Four sulci forming a similar sulcal pattern were identified in both species. The olfactory sulcus occupies the most medial position forming the lateral border of the gyrus rectus. Lateral to this, the medial, lateral, and transverse orbital sulci form a pattern often resembling an “H,” “X,” or “K.” These sulci divide the orbitofrontal cortex into four major gyri: the medial, lateral, anterior, and posterior orbital gyri. Three major types of sulcal pattern were identified in both species based on the arrangement of these orbital sulci. Additional sulci were observed in the human brain, creating more complex patterns. Probability maps were constructed for the four main orbitofrontal sulci of the human brain. These maps provide a statistical description of the variability of the location of the orbitofrontal sulci within the three-dimensional coordinate system of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). Because these maps may be directly compared with any image transformed into the same standardized space, they provide a valuable tool for identifying and describing the location of functional or structural changes in the orbitofrontal region of the human brain. J. Comp. Neurol. 422:35–54, 2000. © 2000 Wiley-Liss, Inc.

  • Orbitofrontal sulci of the human and macaque monkey brain.
    The Journal of Comparative Neurology, 2000
    Co-Authors: Mary M Chiavaras, Michael Petrides
    Abstract:

    The present study investigated the orbitofrontal sulci in 100 normal adult human cerebral hemispheres by using magnetic resonance images that were transformed into the standardized proportional Stereotaxic space most commonly used, that of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). The patterns formed by the individual sulci were then examined and compared with those of the less convoluted macaque monkey brain. Four sulci forming a similar sulcal pattern were identified in both species. The olfactory sulcus occupies the most medial position forming the lateral border of the gyrus rectus. Lateral to this, the medial, lateral, and transverse orbital sulci form a pattern often resembling an "H," "X," or "K." These sulci divide the orbitofrontal cortex into four major gyri: the medial, lateral, anterior, and posterior orbital gyri. Three major types of sulcal pattern were identified in both species based on the arrangement of these orbital sulci. Additional sulci were observed in the human brain, creating more complex patterns. Probability maps were constructed for the four main orbitofrontal sulci of the human brain. These maps provide a statistical description of the variability of the location of the orbitofrontal sulci within the three-dimensional coordinate system of Talairach and Tournoux (Talairach and Tournoux [1988]. Co-planar Stereotaxic Atlas of the human brain. New York: Thieme). Because these maps may be directly compared with any image transformed into the same standardized space, they provide a valuable tool for identifying and describing the location of functional or structural changes in the orbitofrontal region of the human brain.

Arsène Ella - One of the best experts on this subject based on the ideXlab platform.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain
    Journal of Comparative Neurology, 2017
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain.
    The Journal of comparative neurology, 2016
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation. J. Comp. Neurol. 525:676-692, 2017. © 2016 Wiley Periodicals, Inc.

Philippe Chemineau - One of the best experts on this subject based on the ideXlab platform.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain
    Journal of Comparative Neurology, 2017
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation.

  • Computation of a high-resolution MRI 3D Stereotaxic Atlas of the sheep brain.
    The Journal of comparative neurology, 2016
    Co-Authors: Arsène Ella, José A. Delgadillo, Philippe Chemineau, Matthieu Keller
    Abstract:

    The sheep model was first used in the fields of animal reproduction and veterinary sciences and then was utilized in fundamental and preclinical studies. For more than a decade, magnetic resonance (MR) studies performed on this model have been increasingly reported, especially in the field of neuroscience. To contribute to MR translational neuroscience research, a brain template and an Atlas are necessary. We have recently generated the first complete T1-weighted (T1W) and T2W MR population average images (or templates) of in vivo sheep brains. In this study, we 1) defined a 3D Stereotaxic coordinate system for previously established in vivo population average templates; 2) used deformation fields obtained during optimized nonlinear registrations to compute nonlinear tissues or prior probability maps (nlTPMs) of cerebrospinal fluid (CSF), gray matter (GM), and white matter (WM) tissues; 3) delineated 25 external and 28 internal sheep brain structures by segmenting both templates and nlTPMs; and 4) annotated and labeled these structures using an existing histological Atlas. We built a quality high-resolution 3D Atlas of average in vivo sheep brains linked to a reference Stereotaxic space. The Atlas and nlTPMs, associated with previously computed T1W and T2W in vivo sheep brain templates and nlTPMs, provide a complete set of imaging space that are able to be imported into other imaging software programs and could be used as standardized tools for neuroimaging studies or other neuroscience methods, such as image registration, image segmentation, identification of brain structures, implementation of recording devices, or neuronavigation. J. Comp. Neurol. 525:676-692, 2017. © 2016 Wiley Periodicals, Inc.