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gymnemic acid

an extract of the Indian plant Gymnema sylvestris, noted for its capacity to block sweet taste. It is one of a family of triterpene saponins (plant glucosides producing a soapy lather) that also includes ziziphin, gurmarin, and hodulcin.

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Psychology term of the day

May 30th 2024

recurrent collateral inhibition

recurrent collateral inhibition

a negative-feedback system that prevents rapid, repeated firing of the same motor neuron. To accomplish this, one branch of an axon loops back toward the cell body of the neuron and communicates with an inhibitory Renshaw cell. The Renshaw cell in turn inhibits the neuron.