Stereotaxic Surgery
Stereotaxic Surgery - Related Videos
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...
12:45
Stereotaxic Surgery for Excitotoxic Lesion of Specific Brain Areas in the Adult Rat
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Cited by 22 •
2012
Targeted ablation of specific brain region(s) by infusion of an excitotoxin using stereotaxic coordinates is described. This technique could also be adapted for infusion of other chemicals into the rat brain.
07:01
Rodent Stereotaxic Surgery and Animal Welfare Outcome Improvements for Behavioral Neuroscience
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Cited by 63 •
2012
Stereotaxic surgery on rodents allows for targeted administration of drugs or electrical stimulation and recordings in awake, behaving animals. In this video presentation we will demonstrate recent procedural refinements to this long-standing procedure that successfully improved survival rate and reduced post-surgical weight loss.
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).
FAQs
Anatomical landmarks and brain atlases provide reference points for translating a target brain structure into three-dimensional coordinates. This planning step allows the operator to identify the intended location before advancing an instrument. The resulting coordinate-based approach is especially valuable when experiments require localized access to a defined region rather than broad or nonspecific intervention.
Head stabilization establishes a consistent spatial reference while the procedure is performed. By holding the subject’s head in a stereotaxic frame, researchers can use planned coordinates to guide an instrument toward the selected structure. This supports precision and helps limit unintended disruption of nearby tissue, which is important when interpreting region-specific neural or behavioral effects.
The approach can accommodate several instrument types, including probes, electrodes, cannulas, and injection needles. Each supports a different experimental purpose: probes can access a target, electrodes can support neural recording, cannulas can enable localized delivery, and injection needles can introduce material into a selected region. Instrument choice therefore depends on the biological question and desired manipulation.
Its defining experimental advantage is spatial selectivity. Coordinates, stabilization, and guided advancement allow researchers to focus an intervention on a particular brain structure while minimizing disruption to surrounding tissue. This makes the technique suited to questions about defined neural circuits and region-specific functions, whereas broader interventions may provide less precise information about the contribution of one location.
Planning begins by selecting the brain structure of interest and identifying its coordinates using anatomical landmarks or a brain atlas. The subject’s head is then stabilized in a stereotaxic frame, and a small opening in the skull permits controlled advancement of the chosen probe, electrode, cannula, or injection needle. These steps connect the experimental goal with a localized intervention.
Biology researchers use this technique when they need to deliver, record, damage, or otherwise manipulate a defined brain region. Its applications include localized drug delivery, neural recording, lesioning, and targeted manipulation in animal models. Because the intervention is spatially focused, researchers can examine how particular neural structures contribute to behavior, neural circuits, or disease mechanisms.
The method can link a localized brain intervention with later observations of neural activity, circuit function, behavior, or disease-related effects. For example, recording from a selected region can provide information about neural signals, while localized delivery or lesioning can test that region’s role. These outcomes help researchers evaluate region-specific mechanisms and potential therapeutic interventions.
Animal models allow researchers to examine defined brain structures in relation to neural circuits, behavior, and disease mechanisms. Stereotaxic surgery strengthens this work by making localized delivery, recording, lesioning, or manipulation possible within the model. Its precision supports experiments that distinguish the effects of a selected region from changes caused by more widespread disruption.