BCM theory, BCM synaptic modification, or the BCM rule, named for Elie Bienenstock, Leon Cooper, and Paul Munro, is a physical theory of learning in the visual cortex developed in 1981.
The BCM model proposes a sliding threshold for long-term potentiation (LTP) or long-term depression (LTD) induction, and states that synaptic plasticity is stabilized by a dynamic adaptation of the time-averaged postsynaptic activity. According to the BCM model, when a pre-synaptic neuron fires, the post-synaptic neurons will tend to undergo LTP if it is in a high-activity state (e.g., is firing at high frequency, and/or has high internal calcium concentrations), or LTD if it is in a lower-activity state (e.g., firing in low frequency, low internal calcium concentrations).[1] This theory is often used to explain how cortical neurons can undergo both LTP or LTD depending on different conditioning stimulus protocols applied to pre-synaptic neurons (usually high-frequency stimulation, or HFS, for LTP, or low-frequency stimulation, LFS, for LTD).[2]
^Izhikevich, Eugene M.; Desai, Niraj S. (2003-07-01). "Relating STDP to BCM". Neural Computation. 15 (7): 1511–1523. doi:10.1162/089976603321891783. ISSN 0899-7667. PMID 12816564. S2CID 1919612.
^Coesmans, Michiel; Weber, John T.; Zeeuw, Chris I. De; Hansel, Christian (2004). "Bidirectional Parallel Fiber Plasticity in the Cerebellum under Climbing Fiber Control". Neuron. 44 (4): 691–700. doi:10.1016/j.neuron.2004.10.031. PMID 15541316. S2CID 9061314.
BCMtheory, BCM synaptic modification, or the BCM rule, named for Elie Bienenstock, Leon Cooper, and Paul Munro, is a physical theory of learning in the...
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