Stereotaxic Apparatus
Stereotaxic Apparatus - Related Videos
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Survivable Stereotaxic Surgery in Rodents
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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.
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Dissecting the Non-human Primate Brain in Stereotaxic Space
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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.
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Rodent Stereotaxic Surgery
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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...
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Novel Apparatus and Method for Drug Reinforcement
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Golgi Apparatus
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2023
Properly folded and assembled proteins are selectively packaged into vesicles that exit the ER. Motor proteins transport these vesicles to the Golgi apparatus for adding modifications that make these proteins functional at their destination. The Golgi apparatus is a eukaryotic organelle that has a distinctive ribbon-like appearance. It is a primary sorting and dispatch station for cargo arriving from the ER. Newly arriving vesicles enter the cis face of the Golgi, closest to the ER, and are...
FAQs
Targeting begins with a three-dimensional coordinate system that specifies a location within the brain. Researchers can reference these coordinates to a brain atlas, then use the apparatus to guide a tool along a defined trajectory and to a controlled depth. This links the selected anatomical site with the intended injection, recording, stimulation, lesion, or tissue-collection procedure.
Skull stabilization keeps the animal’s head in a consistent position while a tool is advanced toward the brain. That fixed relationship allows the calibrated coordinates to correspond more reliably to the intended region across experiments. Stable positioning therefore supports reproducibility, making anatomical placement easier to compare with neural recordings, interventions, or behavioral outcomes.
Depth determines how far an electrode, needle, probe, or other tool enters the brain, while trajectory describes its direction of travel. Controlling both allows researchers to reach defined locations rather than simply approaching the brain surface. These parameters are important when the experiment depends on associating a particular region with physiological, anatomical, or behavioral findings.
The apparatus can guide several tool types, including electrodes, injection needles, recording probes, and instruments used to create lesions. The selected tool depends on the experimental objective, such as delivering a drug or genetic material, measuring neural activity, stimulating a circuit, or collecting tissue. This flexibility makes the same positioning framework useful across multiple neuroscience procedures.
A typical workflow stabilizes the animal’s skull, selects a target using calibrated three-dimensional coordinates, and aligns the guiding mechanism with the planned location. The researcher then advances the appropriate tool along the defined trajectory to the controlled depth before carrying out the intended intervention or measurement. The resulting anatomical placement can be related to physiological or behavioral outcomes.
These procedures are useful when an experiment requires delivery to a defined brain region rather than broad exposure. Researchers can place needles for drugs or genetic materials, or use guided tools to stimulate selected circuits or produce lesions. Such targeted interventions help test how particular locations contribute to brain function, disease mechanisms, or potential therapeutic strategies.
The approach connects a known anatomical location with what happens after recording, stimulation, delivery, lesioning, or tissue collection. Researchers can therefore evaluate neural activity, circuit responses, or behavior in relation to a targeted brain region. This anatomical and functional linkage supports studies of normal brain function, disease-related mechanisms, and interventions designed to influence specific neural sites.