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  • Title: Dopamine modulation of gill reflex behavior in Aplysia.
    Author: Ruben P, Lukowiak K.
    Journal: Can J Physiol Pharmacol; 1979 Mar; 57(3):329-32. PubMed ID: 445234.
    Abstract:
    We have studied the effects of dopamine on the gill withdrawal reflex evoked by tactile siphon stimulation in the margine mollusc Aplysia. Physiological concentrations of dopamine (diluted in seawater) were perfused through the gill during siphon stimulation series. The amplitude of the reflex was potentiated by dopamine and habituation of the reflex was prevented. This occurred with no change in the activity evoked in central motor neurons. These results lead us to conclude that the dopaminergic motor neuron L9 is modulating habituation in the periphery and that the central nervous system facilitatory control of the peripheral nervous system may act via a dopaminergic pathway.
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