Long-term Potentiation
Long-term Potentiation - Related Videos
01:35
Long-term Potentiation
0 Views •
2025
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory. Hebbian LTP LTP can occur when presynaptic...
01:25
Long-term Potentiation
0 Views •
2023
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory. Hebbian LTP LTP can occur when presynaptic neurons...
09:39
Improved Preparation and Preservation of Hippocampal Mouse Slices for a Very Stable and Reproducible Recording of Long-term Potentiation
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Cited by 20 •
2013
This paper presents a complete methodology to prepare and preserve in vitro acute hippocampal slices from adult mice. This protocol allows the recording of very stable long-lasting long-term potentiation (LTP) for more than 8 hours with a success rate of 95%.
08:29
Standardized Induction and Assessment of Long-term Potentiation-like Cortical Plasticity Using Transcranial Magnetic Stimulation
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2025
This paper describes the standardized induction of Long-term Potentiation-like cortical plasticity using repetitive stimulation protocols, followed by applying single-pulse transcranial magnetic stimulation guided by a neuronavigation system to evaluate synaptic plasticity.
06:50
Electric Potential
0 Views •
2023
Source: Yong P. Chen, PhD, Department of Physics & Astronomy, College of Science, Purdue University, West Lafayette, IN Electric potential, also known as "voltage", measures the electric potential energy per unit charge. Electric field is a scalar quantity and is fundamental to many electrical effects. Like potential energy, what is physically meaningful is the difference in the electric potential. For example, the spatial variation in the electric potential is related to the electric...
FAQs
NMDA receptors provide the activity-sensitive route that allows calcium ions to enter the postsynaptic neuron during repeated stimulation. Their activation connects coordinated synaptic activity with calcium-dependent signaling inside the receiving cell. This makes NMDA receptor activity a central molecular step in converting a stimulation pattern into a lasting change in synaptic transmission.
Calcium entry initiates signaling processes in the postsynaptic neuron that increase the number or function of AMPA receptors. Because AMPA receptors contribute to excitatory transmission, their increased presence or activity makes subsequent signaling more effective. This molecular adjustment explains how calcium-dependent events can produce stronger communication across an activated synapse.
LTP follows brief, coordinated activity rather than simply any isolated synaptic event. Repeated stimulation activates NMDA receptors and promotes the calcium entry required for downstream strengthening. The activity pattern therefore determines whether signaling progresses toward a persistent synaptic change, linking neural experience with the molecular mechanisms that modify circuit function.
The persistence of the change allows LTP to serve as a model for experience-dependent modification of neural circuits. A short period of coordinated activity can be connected to a longer-lasting increase in synaptic effectiveness, making the phenomenon useful for investigating how cellular changes may support learning and memory in neuroscience.
Researchers examine LTP by focusing on synapses exposed to brief, repeated stimulation and then considering the resulting persistent increase in transmission. The hippocampus is a major setting for this work, although other brain regions are also studied. These investigations connect receptor activation and calcium-dependent signaling with broader questions about synaptic plasticity.
LTP provides a cellular and circuit-level model for examining how experience can alter neural communication. Researchers use this framework to relate changes in AMPA receptor number or function to stronger synaptic transmission, then consider how such plasticity may contribute to learning and memory. The hippocampus is especially prominent in this research context.
Because LTP models activity-dependent changes in synaptic strength, it offers a framework for studying how neural circuits are modified during brain development. The same mechanisms are examined in neurodegenerative disease and in disorders where altered plasticity affects cognition or behavior. This makes LTP relevant to both normal circuit formation and pathological changes in brain function.