Ca1 Stratum Pyramidale
Ca1 Stratum Pyramidale - Related Videos
03:10
Recording CA3-CA1 Synaptic Responses in a Rat Hippocampal Slice
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2025
This video demonstrates a method to record CA3-CA1 synaptic responses in a rat hippocampal slice. It outlines the steps involved in placing the stimulating and recording electrodes on the hippocampal slice and measuring the field excitatory postsynaptic potential (fEPSP) to assess synaptic response strength.
02:58
Generating Local Cornu Ammonis 1 (CA1) Gamma Oscillations Using Tetanic Stimulations in a Hippocampal Brain Slice
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2025
This video demonstrates the procedure of inducing local CA1 gamma oscillations in a CA1 hippocampal mouse brain slice using tetanic simulations. This method is important to understand the neuronal network activity.
08:02
Generation of Local CA1 γ Oscillations by Tetanic Stimulation
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Cited by 2 •
2015
Oscillations are fundamental network properties and are modulated by disease and drugs. Studying brain-slice oscillations allows characterization of isolated networks under controlled conditions. Protocols are provided for the preparation of acute brain slices for evoking CA1 γ oscillations.
08:00
Measuring and Modeling Contractile Drying in Human Stratum Corneum
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Cited by 2 •
2017
This article describes a method of quantifying the dynamic drying behavior and mechanical properties of stratum corneum by measuring spatially resolved in-plane drying displacements of circular tissue samples adhered to an elastomer substrate. This technique can be used to measure how different chemical treatments alter drying and tissue mechanical properties.
02:44
Recording of Local Field Potential in Mouse Hippocampal-Entorhinal Cortex Slices
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2025
The video demonstrates a procedure to record the local field potential (LFP) in mouse hippocampal-entorhinal cortex slices. Electrical stimulation is provided at the CA3 stratum radiatum of the hippocampus, which causes changes in the postsynaptic potential at the CA1 stratum pyramidale. The combined change in the membrane potential of CA1 neurons, termed the local field potential, is recorded.
FAQs
CA1 pyramidal neurons receive and integrate synaptic inputs across distinct dendritic compartments rather than treating all incoming signals as equivalent. The location of an input therefore provides an important structural context for interpreting the neuron’s electrical response. Studying these compartments helps researchers connect synaptic organization with neuronal activity and investigate how hippocampal circuits process information.
Once synaptic inputs have been integrated, electrical activity is transmitted through the axons of CA1 pyramidal neurons. These axonal outputs connect CA1 activity with downstream hippocampal and cortical targets. Examining this flow allows researchers to relate local cellular events to broader circuit activity, including how changes within CA1 may influence communication across hippocampal and cortical networks.
The CA1 region is sensitive to disrupted oxygen supply, excitotoxicity, and neurodegeneration. This vulnerability makes the layer useful for examining how damaging conditions affect neuronal structure, electrical activity, and circuit function. Findings from such studies can provide a cellular and anatomical context for research on memory impairment, epilepsy, and brain injury without reducing these conditions to a single mechanism.
Researchers identify the layer using complementary approaches, including histology, fluorescence microscopy, and electrophysiological recording. Histology reveals hippocampal organization, fluorescence microscopy helps visualize cellular features, and recording connects anatomical location with electrical activity. Using these methods together supports more reliable examination of neuronal structure, synaptic plasticity, and circuit behavior in the CA1 region.
Electrophysiological recording provides information about electrical activity associated with CA1 pyramidal neurons and their local circuit environment. When interpreted alongside cellular location and morphology, recordings help investigators study how synaptic inputs are integrated and how activity is transmitted through axons. This approach is particularly relevant to experiments examining circuit activity and synaptic plasticity.
Studies of this layer commonly address hippocampal organization, neuronal structure, synaptic plasticity, and circuit activity. Its sensitivity to disrupted oxygen supply, excitotoxicity, and neurodegeneration also supports research on memory, epilepsy, and brain injury. Combining anatomical visualization with electrical measurements helps researchers examine both normal hippocampal function and changes associated with damaging or disease-related conditions.