Postsynaptic Neuron
Postsynaptic Neuron - Related Videos
05:26
Recording Neuronal Field Excitatory Postsynaptic Potentials in Acute Hippocampal Slices
0 Views •
2025
This video demonstrates the procedure for setting up a brain slice in a submersion chamber to record synaptic activity. The process involves securing the slice on lens paper, maintaining a continuous flow of artificial cerebrospinal fluid (aCSF) to ensure neuronal viability, and accurately positioning the stimulation and recording electrodes relative to a specific brain region of interest. This setup allows for precise monitoring of baseline synaptic activity and the effects of electrical...
04:35
Light-Evoked Postsynaptic Responses in Neurons of Mouse Retinal Slices
0 Views •
2025
This video demonstrates the recording of light-evoked post-synaptic responses in a dark-adapted mouse retinal tissue slice preparation. The retinal slice is placed in a recording chamber, and a recording pipette is used to establish electrical continuity with a retinal ganglion cell. Light pulses are applied to generate excitatory post-synaptic potentials in the ganglion cells, which are recorded by the pipette.
04:27
MicroRNA-Mediated Inhibition of Excitatory Postsynaptic Currents in Mouse Hippocampal Slices
0 Views •
2025
This video demonstrates microRNA-mediated inhibition of excitatory synaptic currents in mouse hippocampal brain slices. The CA3 neurons were infected with a recombinant viral vector harboring a construct for expressing a fluorescent reporter, a light-activated membrane channel, and a microRNA that downregulates the expression of voltage-gated calcium channels. Upon placing a slice in a recording chamber and patching a CA1 neuron with a recording pipette, light pulses were used to stimulate the...
10:30
Recording Light-evoked Postsynaptic Responses in Neurons in Dark-adapted, Mouse Retinal Slice Preparations Using Patch Clamp Techniques
0 Views •
Cited by 3 •
2015
We will demonstrate how to prepare retinal slices from the mouse eye and record light responses in retinal neurons. The entire procedure is conducted in dark-adapted conditions.
02:59
Auditory Nerve Root Stimulation and Postsynaptic Current Recordings in a Mouse Brain Wedge Slice
0 Views •
2025
This video demonstrates a protocol for stimulating the auditory nerve root and recording postsynaptic currents in medial olivocochlear neurons in mouse brain wedge slices.
FAQs
Receptor binding alters ion channel activity in the postsynaptic membrane, which changes the neuron’s membrane potential. The resulting voltage shift may be excitatory or inhibitory, depending on how signaling affects the cell. This mechanism converts communication at the synapse into an electrical change that influences whether the neuron ultimately generates an action potential.
A postsynaptic neuron receives inputs from multiple connections, so its response depends on the combined effect of those signals rather than on one input alone. Integration allows excitatory and inhibitory influences to be evaluated together. The resulting membrane-potential change helps determine whether the cell reaches the conditions required to generate an action potential.
Excitatory postsynaptic potentials promote action-potential generation, whereas inhibitory postsynaptic potentials oppose it. Both arise from neurotransmitter-dependent changes in ion channel activity and membrane potential, but they influence the neuron in contrasting directions. Their balance determines how the postsynaptic cell responds when signals from its connected neurons arrive.
Examining postsynaptic signaling shows how individual synaptic inputs are converted into integrated neuronal responses. Because postsynaptic activity contributes to the operation of neural circuits, this perspective helps connect cellular communication with broader functions such as sensation, movement, behavior, and learning. It also clarifies how coordinated signaling produces meaningful nervous-system activity.
Changes in postsynaptic membrane potential help determine how neurons respond to incoming signals within neural circuits. Those circuit responses support functions that include sensation, movement, and behavior. Studying the receiving side of synaptic communication therefore links molecular signaling events with the activity patterns underlying observable nervous-system functions.
Postsynaptic signaling is important because altered communication at the receiving side of synapses could affect how neural circuits operate. Investigating these signals helps researchers examine circuit mechanisms associated with neurological disease while also connecting cellular events to functions such as behavior, learning, sensation, and movement.