presynaptically

/ˌpriːsɪˈnæptɪkli/
adverb
  1. In a way that relates to or occurs at the presynaptic part of a nerve cell.
    • The drug acts presynaptically to block the release of certain neurotransmitters.
    • Researchers measured changes presynaptically to see how the nerve responded.
    • Signals are processed presynaptically before reaching the next neuron.
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