Stereotaxic Blocking
Stereotaxic Blocking - Related Videos
09:09
Dissecting the Non-human Primate Brain in Stereotaxic Space
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Cited by 14 •
2009
The non-human primate is an important translational species for our understanding of the normal processing of the brain. The anatomical organization of the primate brain can provide important insights into normal and pathological conditions in humans.
00:08
Survivable Stereotaxic Surgery in Rodents
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Cited by 50 •
2008
The monitoring of extracellular neurotransmitter levels in distinct brain regions of freely moving animals offers insights on the link between neurotransmitter release and behavior. In vivo microdialysis coupled with electrochemical detection provides excellent anatomical and chemical resolution; and information on how basal neurotransmission is altered by pharmacological or physiological manipulations.
08:28
Rodent Stereotaxic Surgery
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2023
Stereotaxic (or stereotactic) surgery is a method used to manipulate the brain of living animals. This technique allows researchers to accurately target deep structures within the brain through the use of a stereotaxic atlas, which provides the 3D coordinates of each area with respect to anatomical landmarks on the skull. After the skull is exposed, anesthetized animals are mounted on a specialized instrument known as a stereotaxic frame, which enables the precise placement of experimental...
11:40
Building An Open-source Robotic Stereotaxic Instrument
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Cited by 18 •
2013
This protocol includes the designs and software necessary to upgrade an existing stereotaxic instrument to a robotic (computer numeric controlled; CNC) stereotaxic instrument for around $1,000 (excluding a drill).
04:17
Stereotaxic Viral Injection for Targeted Neuronal Gene Editing in the Mouse Brain
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2025
Source: Fricano-Kugler, C. J., et al. Designing, Packaging, and Delivery of High Titer CRISPR Retro and Lentiviruses via Stereotaxic Injection. J. Vis. Exp. (2016)This video demonstrates stereotaxic viral injection for precise neuronal gene editing in the mouse brain. The protocol ensures accurate virus delivery to the dentate gyrus, enabling fluorescent labeling and CRISPR-mediated gene knockout to study neural circuits, gene function, and disease mechanisms in vivo.
FAQs
Defined coordinates or intervals make blade placement consistent from specimen to specimen, so corresponding tissue regions can be sampled using the same anatomical reference. This standardization reduces differences caused by uneven or inconsistent sectioning rather than biology. As a result, downstream measurements from histology, immunohistochemistry, microscopy, or molecular assays can be compared more reliably across experimental groups.
Preserving orientation keeps each block identifiable in relation to the brain’s anatomy after sectioning. That relationship allows investigators to associate observed cellular, structural, or molecular findings with a particular brain region instead of treating the tissue as an undifferentiated sample. Orientation therefore supports region-focused analysis and clearer interpretation of biological changes.
The method applies a consistent sampling framework, helping equivalent regions be represented similarly across specimens. This limits variation introduced during tissue preparation and makes differences detected in later analyses more interpretable as experimental or biological effects. The benefit is especially relevant when studies examine brain structure, cellular organization, or changes restricted to particular regions.
Tissue is positioned in a stereotaxic brain matrix, after which blades are inserted at selected coordinates or intervals to produce standardized blocks and slices. The resulting blocks are then directed to an appropriate downstream workflow, such as histology, immunohistochemistry, microscopy, or molecular analysis. This sequence connects controlled tissue preparation with region-specific examination.
The prepared blocks can support histology and immunohistochemistry, as well as microscopy and molecular assays. Because the material remains associated with defined brain regions, researchers can select the analytical approach that matches the structural, cellular, or molecular question being investigated. This flexibility allows one preparation strategy to support several forms of neuroanatomical analysis.
It is useful when investigators need consistent, region-focused analysis across multiple brain specimens or experimental groups. Applications include studies of brain structure, cellular organization, and region-specific biological changes. Standardized blocks strengthen these comparisons by making tissue sampling more uniform before downstream processing, microscopy, or assay-based evaluation.