So just as a neuron adds up its stimulation from other neurons to decide whether to fire, an ant adds up its stimulation from other ants to decide whether to forage.
所以就像是一个神经元是否触发， 取决于相连的神经元触发强度之和， 蚂蚁的行为也由其它蚂蚁决定， 是否要出去觅食。