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Updated: Jun 21, 2026

Inducing Long-Term Plasticity of Intrinsic Neuronal Excitability in Neurons of the Dorsal Lateral Geniculate Nucleus
Published on: September 20, 2024
Diversity in long-term synaptic plasticity at inhibitory synapses of striatal spiny neurons
Pavel E Rueda-Orozco1, Ernesto Mendoza, Ricardo Hernandez
1Departamento de Biofísica, Instituto de Fisiologia Celular-Neurociencias, Universidad Nacional Autonoma de México, México City, Distrito Federal, Mexico 04510.
Abstract:
Procedural memories and habits are posited to be stored in the basal ganglia, whose intrinsic circuitries possess important inhibitory connections arising from striatal spiny neurons. However, no information about long-term plasticity at these synapses is available. Therefore, this work describes a novel postsynaptically dependent long-term potentiation (LTP) at synapses among spiny neurons (intrinsic striatal circuitry); a postsynaptically dependent long-term depression (LTD) at synapses between spiny and pallidal neurons (indirect pathway); and a presynaptically dependent LTP at strionigral synapses (direct pathway). Interestingly, long-term synaptic plasticity differs at these synapses. The functional consequences of these long-term plasticity variations during learning of procedural memories are discussed.
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