Aiming those at the synapse under study enabled them to uncage the neurotransmitter and see, by measuring the electrical activity in that part of the neuron using an ultrafine electrode, whether the synapse responded.

将研究的突触作能够让这些突触释放神递质，并让研究人员能够细电极测量神元这一部分的电活动，以此来观察突触是否有反应。