Proportion of neurons responsive to the audiovisual imprinting stimulus and its visual component.

Responsive neurons were defined as those whose firing rate during stimulus presentation significantly differed from the baseline firing rate before stimulus presentation (T-test: see ref. [18] for details).响应神经元（Responsive neurons）被定义为：在刺激呈现（stimulus presentation）期间的放电频率（firing rate）与刺激呈现前的基线放电频率（baseline firing rate）存在显著统计学差异的神经元，其判定采用T检验（T-test），具体细节参见参考文献[18]（ref. [18]）。