diff --git a/bioexplorer/backend/science/atlas/AtlasLoader.cpp b/bioexplorer/backend/science/atlas/AtlasLoader.cpp
index 36aca492d..61e1267d9 100644
--- a/bioexplorer/backend/science/atlas/AtlasLoader.cpp
+++ b/bioexplorer/backend/science/atlas/AtlasLoader.cpp
@@ -86,7 +86,7 @@ ModelDescriptorPtr AtlasLoader::importFromStorage(const std::string& storage, co
     const auto position = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_POSITION.name);
     const Vector3d pos = core::Vector3d(position[0], position[1], position[2]);
     const auto rotation = props.getProperty<std::array<double, 4>>(LOADER_PROPERTY_ROTATION.name);
-    const Quaterniond rot = core::Quaterniond(rotation[0], rotation[1], rotation[2], rotation[3]);
+    const Quaterniond rot = core::Quaterniond(rotation[3], rotation[0], rotation[1], rotation[2]);
     const auto scale = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_SCALE.name);
     Atlas atlas(_scene, details, pos, rot, callback);
     return std::move(atlas.getModelDescriptor());
diff --git a/bioexplorer/backend/science/connectomics/whitematter/WhiteMatterLoader.cpp b/bioexplorer/backend/science/connectomics/whitematter/WhiteMatterLoader.cpp
index 3b00df325..62b5546f3 100644
--- a/bioexplorer/backend/science/connectomics/whitematter/WhiteMatterLoader.cpp
+++ b/bioexplorer/backend/science/connectomics/whitematter/WhiteMatterLoader.cpp
@@ -84,7 +84,7 @@ ModelDescriptorPtr WhiteMatterLoader::importFromStorage(const std::string& stora
     const auto position = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_POSITION.name);
     const Vector3d pos = core::Vector3d(position[0], position[1], position[2]);
     const auto rotation = props.getProperty<std::array<double, 4>>(LOADER_PROPERTY_ROTATION.name);
-    const Quaterniond rot = core::Quaterniond(rotation[0], rotation[1], rotation[2], rotation[3]);
+    const Quaterniond rot = core::Quaterniond(rotation[3], rotation[0], rotation[1], rotation[2]);
     const auto scale = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_SCALE.name);
     WhiteMatter whiteMatter(_scene, details, pos, rot, callback);
     return std::move(whiteMatter.getModelDescriptor());
diff --git a/bioexplorer/backend/science/morphologies/AstrocytesLoader.cpp b/bioexplorer/backend/science/morphologies/AstrocytesLoader.cpp
index 055c7cb7a..78365a29c 100644
--- a/bioexplorer/backend/science/morphologies/AstrocytesLoader.cpp
+++ b/bioexplorer/backend/science/morphologies/AstrocytesLoader.cpp
@@ -104,7 +104,7 @@ ModelDescriptorPtr AstrocytesLoader::importFromStorage(const std::string& storag
     const auto position = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_POSITION.name);
     const Vector3d pos = core::Vector3d(position[0], position[1], position[2]);
     const auto rotation = props.getProperty<std::array<double, 4>>(LOADER_PROPERTY_ROTATION.name);
-    const Quaterniond rot = core::Quaterniond(rotation[0], rotation[1], rotation[2], rotation[3]);
+    const Quaterniond rot = core::Quaterniond(rotation[3], rotation[0], rotation[1], rotation[2]);
     const auto scale = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_SCALE.name);
     details.scale = {scale[0], scale[1], scale[2]};
     Astrocytes astrocytes(_scene, details, pos, rot, callback);
diff --git a/bioexplorer/backend/science/morphologies/NeuronsLoader.cpp b/bioexplorer/backend/science/morphologies/NeuronsLoader.cpp
index 784b0f8c1..50c16f8c4 100644
--- a/bioexplorer/backend/science/morphologies/NeuronsLoader.cpp
+++ b/bioexplorer/backend/science/morphologies/NeuronsLoader.cpp
@@ -106,7 +106,7 @@ ModelDescriptorPtr NeuronsLoader::importFromStorage(const std::string& storage,
     const auto position = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_POSITION.name);
     const Vector3d pos = core::Vector3d(position[0], position[1], position[2]);
     const auto rotation = props.getProperty<std::array<double, 4>>(LOADER_PROPERTY_ROTATION.name);
-    const Quaterniond rot = core::Quaterniond(rotation[0], rotation[1], rotation[2], rotation[3]);
+    const Quaterniond rot = core::Quaterniond(rotation[3], rotation[0], rotation[1], rotation[2]);
     const auto scale = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_SCALE.name);
     details.scale = {scale[0], scale[1], scale[2]};
     Neurons Neurons(_scene, details, pos, rot, callback);
diff --git a/bioexplorer/backend/science/vasculature/VasculatureLoader.cpp b/bioexplorer/backend/science/vasculature/VasculatureLoader.cpp
index 3dc2a1ece..74f0b9ef6 100644
--- a/bioexplorer/backend/science/vasculature/VasculatureLoader.cpp
+++ b/bioexplorer/backend/science/vasculature/VasculatureLoader.cpp
@@ -96,7 +96,7 @@ ModelDescriptorPtr VasculatureLoader::importFromStorage(const std::string& stora
     const auto position = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_POSITION.name);
     const Vector3d pos = core::Vector3d(position[0], position[1], position[2]);
     const auto rotation = props.getProperty<std::array<double, 4>>(LOADER_PROPERTY_ROTATION.name);
-    const Quaterniond rot = core::Quaterniond(rotation[0], rotation[1], rotation[2], rotation[3]);
+    const Quaterniond rot = core::Quaterniond(rotation[3], rotation[0], rotation[1], rotation[2]);
     const auto scale = props.getProperty<std::array<double, 3>>(LOADER_PROPERTY_SCALE.name);
     details.scale = {scale[0], scale[1], scale[2]};
     Vasculature vasculature(_scene, details, pos, rot, callback);