Long-term synaptic plasticity in the honeybee.

S Oleskevich; J D Clements; M V Srinivasan

doi:10.1152/jn.1997.78.1.528

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Long-term synaptic plasticity in the honeybee.

S Oleskevich·J D Clements·M V Srinivasan

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Abstract

A monosynaptic response was recorded in vivo in the mushroom body of the bee brain, an important site for memory consolidation. Focal electrical stimulation of a major afferent input evoked an extracellular field potential that consisted of a presynaptic fiber volley and a postsynaptic response. We report a long-lasting potentiation of the synaptic response (2.6-fold increase; < or = 3.5 h). Potentiation of the response was induced by low-frequency stimulation (0.02-1.0 Hz), was input specific, and was maintained in the absence of stimulation. Paired-pulse facilitation of the response was converted to paired-pulse depression after potentiation, suggesting a presynaptic mechanism. This is the first demonstration of long-term synaptic plasticity in the insect brain.

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Animals Bees Electric Stimulation Long-Term Potentiation Olfactory Pathways Reaction Time Synapses Journal Article

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S Oleskevich, J D Clements, M V Srinivasan. 1997. Long-term synaptic plasticity in the honeybee.. https://doi.org/10.1152/jn.1997.78.1.528

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