Dual Lfp Recordings
Dual Lfp Recordings - Related Videos
07:34
A Simple Stimulatory Device for Evoking Point-like Tactile Stimuli: A Searchlight for LFP to Spike Transitions
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Cited by 4 •
2014
To elucidate the complex transition from Local Field Potentials (LFPs) to spikes a suitable stimulator for light mechanical peripheral stimuli was built. As an application, the spiking activities recorded from somatosensory cortex were analyzed by a multi-objective optimization strategy. The results demonstrated that the proposed stimulator was able to deliver tactile stimuli with millisecond and millimeter precisions.
16:38
Dual Electrophysiological Recordings of Synaptically-evoked Astroglial and Neuronal Responses in Acute Hippocampal Slices
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Cited by 19 •
2012
The preparation of acute brain slices from isolated hippocampi, as well as the simultaneous electrophysiological recordings of astrocytes and neurons in stratum radiatum during stimulation of schaffer collaterals is described. The pharmacological isolation of astroglial potassium and glutamate transporter currents is demonstrated.
04:44
Dual Extracellular Recordings in the Mouse Hippocampus and Prefrontal Cortex
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2024
This protocol outlines the use of a custom-designed recording device and electrodes to record local field potentials and investigate information flow in the mouse hippocampus and prefrontal cortex.
09:30
Dual Somatic Recordings from Gonadotropin-Releasing Hormone (GnRH) Neurons Identified by Green Fluorescent Protein (GFP) in Hypothalamic Slices
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Cited by 3 •
2010
Activity in neuronal systems often requires synchronous action potential discharges from neurons within a specific population. For example, pulses of gonadotropin-releasing hormone (GnRH) likely require coordinated activity between GnRH neurons. We present our methodological approach for reliably obtaining simultaneous electrophysiological recordings from the diffusely distributed GnRH neurons.
02:39
In Vitro Recording of Theta Oscillations in the Mouse Hippocampus
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2025
This video demonstrates the recording of rhythmic neuronal network activity, also known as theta oscillations, in an isolated hippocampus. Electrodes are inserted into various layers and spatial positions to detect and analyze theta oscillations. This shows the unique neuronal compositions and the connectivity of the neuronal network across different layers of the hippocampus.
FAQs
Amplitude comparisons show how voltage signal magnitude differs between the two recording sites. Oscillation analysis examines rhythmic activity, while phase analysis evaluates the relative timing of those rhythms. Temporal correlation measures how activity varies together over time. Examining these features together helps researchers characterize coordinated network dynamics rather than relying on a single signal property.
Phase and temporal correlation provide complementary information. Phase focuses on the relative timing of oscillatory activity, whereas temporal correlation addresses similarity in signal fluctuations across time. A pair of regions may therefore be compared through both rhythmic alignment and broader time-varying correspondence. This distinction helps separate specific oscillatory relationships from more general coordinated activity.
Simultaneous acquisition matters because both sites are observed during the same experimental conditions. That shared timing allows researchers to compare when activity changes occur and whether signals show related amplitude, oscillation, phase, or temporal-correlation patterns. The result is a more direct assessment of spatially distributed network dynamics than comparisons made from separately acquired recordings.
Unlike a recording from one location, dual LFP recordings provide a built-in spatial comparison between two neuronal locations or brain regions. This paired perspective can reveal relationships in activity that are not visible from either signal alone, including coordinated changes in timing or oscillatory behavior. It therefore supports circuit-level analysis alongside local signal measurement.
A basic experiment identifies two brain regions or neuronal locations relevant to the research question, records their LFP signals simultaneously with paired electrodes, and compares the resulting traces. Investigators can then examine amplitude, oscillations, phase, and temporal correlation. This workflow preserves the spatial pairing needed to relate local signals to network activity.
Researchers apply Dual LFP recordings when they need to examine communication or coordination between locations. The approach supports studies of functional connectivity, sensory processing, sleep, and movement by comparing activity across sites. It can also expose disease-related network dysfunction, making the method useful for linking altered regional dynamics with broader circuit behavior.
In neuroscience, the method helps connect cellular and regional electrical dynamics with behavior. Signals from two sites can be examined alongside behavioral conditions to ask how network relationships change during sensory processing, sleep, or movement. The same framework can characterize dysfunction associated with disease, extending interpretation beyond isolated local activity.