In a neural circuit responsible for a rapid, synchronized reflex, a toxin is introduced that specifically blocks the direct channels that allow electrical current to flow between adjacent neurons. What is the most likely outcome for the reflex action?

Imagine a specific type of neural connection where two neurons are physically linked by a set of protein channels, allowing an electrical current to flow directly and rapidly from the first neuron to the second. If a newly discovered toxin were to specifically block these channels, what would be the most immediate consequence for the communication between these two neurons?