Abstract
Long-term memory (LTM) consolidation is thought to require the prior establishment of short-term memory (STM). Here we show that optogenetic or genetic CaMKII inhibition impairs STM for an inhibitory avoidance task at 1 h but not LTM at 1 day in mice. Similarly, cortico-amygdala synaptic potentiation was more sensitive to CaMKII inhibition at 1 h than at 1 day after training. Thus, LTM does not require the formation of STM, and CaMKII-dependent plasticity specifically regulates STM for avoidance memory.
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