Hippocampal Implantation
Hippocampal Implantation - Related Videos
08:20
Organotypic Hippocampal Slice Cultures
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Cited by 52 •
2011
We describe a method to prepare organotypic hippocampal slices that can be easily adapted to other brain regions. Brain slices are laid on porous membranes and culture media is allowed to form an interface. This method preserves the gross architecture of the hippocampus for up to 2 weeks in culture.
09:59
Implantation of Chronic Silicon Probes and Recording of Hippocampal Place Cells in an Enriched Treadmill Apparatus
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Cited by 9 •
2017
We describe the diverse steps to implant chronic silicon probes and to record place cells in mice that are running head-fixed on a cue-enriched treadmill apparatus.
05:13
Co-culturing of Ventral Hippocampal and Nucleus Accumbens
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2025
This video demonstrates the process of preparing ventral hippocampal and nucleus accumbens tissues from mouse brains for co-culture. Neurons extend projections to form synaptic connections between the ventral hippocampal and nucleus accumbens tissues. This method allows studying neuronal interactions between these two brain regions, offering insights into cognition, behavior, and neurological disorders.
10:32
Hippocampal Insulin Microinjection and In vivo Microdialysis During Spatial Memory Testing
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Cited by 14 •
2013
Modulation of hippocampally-dependent spatial working memory by direct intrahippocampal microinjection, accompanied and followed by in vivo microdialysis for metabolites in conscious, behaving animals.
02:30
Optogenetic Control of Hippocampal Network Dynamics
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2025
This video demonstrates the method to use optogenetics to modulate hippocampal network dynamics by activating genetically modified light-sensitive interneurons in a mouse brain slice, enhancing theta oscillation synchronization and studying neural circuit behavior.
FAQs
Anatomical coordinates guide the implant toward a selected hippocampal region during stereotaxic surgery. This precision allows researchers to associate recorded activity or delivered stimulation with a defined part of the hippocampal network rather than treating the structure as functionally uniform. Region-specific placement therefore strengthens interpretations of memory, learning, spatial navigation, and disease-related experiments.
Implanted electrodes and neural probes can record neural activity and monitor local circuit responses in living subjects. These measurements reveal how hippocampal networks respond during experimental conditions and can be linked with behavior. The resulting signals help researchers examine relationships between cellular activity, circuit function, memory formation, spatial navigation, and neurological disease.
Recording captures neural activity generated within the hippocampal system, whereas stimulation delivers electrical input to influence that activity. Monitoring local circuit responses can show how the network reacts to an intervention, while recording supports observation of ongoing function. Using either capability, or combining them, helps investigate hippocampal network dynamics and their behavioral relevance.
Placement begins with stereotaxic surgery, in which anatomical coordinates are used to guide an electrode, neural probe, or other experimental device toward the intended hippocampal region. The implant is positioned for its planned role, such as recording activity, delivering electrical stimulation, or monitoring local circuit responses. This workflow connects controlled placement with later neuroscience measurements.
Researchers use this approach when they need to relate hippocampal signals or circuit responses to behaviors such as spatial navigation and memory-related tasks. Because measurements occur in living subjects, the technique supports analysis of how neural activity corresponds with behavior. It is therefore useful for connecting cellular and network-level events with broader cognitive functions.
Hippocampal implantation supports investigations of seizure activity, neurological disease, and disrupted hippocampal network function. The same experimental platform can also contribute to neural-interface development by combining implanted devices with measurements or stimulation of local circuits. These applications make the technique relevant to disease modeling, systems neuroscience, and efforts to understand or interact with neural activity.