Focusing on the technique LFP\LTP, and discussion on the subject of learning and memory.
Local field potentials (LFP) are transient electrical signals generated in nervous and other tissues by the summed and synchronous electrical activity of the individual cells (e.g. neurons) in that tissue. LFP are “extracellular” signals, meaning that they are generated by transient imbalances in ion concentrations in the spaces outside the cells, that result from cellular electrical activity. LFP are ‘local’ because they are recorded by an electrode placed nearby the generating cells. As a result of the inverse-square law, such electrodes can only ‘see’ potentials in spatially limited radius. They are ‘potentials’ because they are generated by the voltage that results from charge separation in the extracellular space. They are ‘field’ because those extracellular charge separations essentially create a local electric field. LFP are typically recorded with a high-impedance microelectrode placed in the midst of the population of cells generating it. They can be recorded, for example, via a microelectrode placed in the brain of a human or animal subject, or in an in vitro brain thin slice.
In neuroscience, long-term potentiation (LTP) is a persistent strengthening of synapses based on recent patterns of activity. These are patterns of synaptic activity that produce a long-lasting increase in signal transmission between two neurons. The opposite of LTP is long-term depression, which produces a long-lasting decrease in synaptic strength.
It is one of several phenomena underlying synaptic plasticity, the ability of chemical synapses to change their strength. As memories are thought to be encoded by modification of synaptic strength, LTP is widely considered one of the major cellular mechanisms that underlie learning and memory.
LTP was discovered in the rabbit hippocampus by Terje Lømo in 1966 and has remained a popular subject of research since. Many modern LTP studies seek to better understand its basic biology, while others aim to draw a causal link between LTP and behavioral learning. Still, others try to develop methods, pharmacologic or otherwise, of enhancing LTP to improve learning and memory. LTP is also a subject of clinical research, for example, in the areas of Alzheimer’s disease and addiction medicine.
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1- Stereotactic surgery (rat )
2- Making electrodes and implantation
3- Design of protocols to LTP induction in #dentate_gyrus
4- Stimulation and signal recording
5- Data analysis(LFP/EPSP/PS)
The scientific program will be in English to allow all participants to follow the sessions, acquire new knowledge and participate in the discussions.
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