The key claim of defenders of the 'language thesis' is that language is necessary for mental representation and manipulation of numerosities greater than 4.
“语言观”的维护者的核心观点是，对于大于4的数字的心理表征和操作数值，语言是必不可少的。
2
Thus, the children had to mentally link numerosities in two different modalities, sounds and actions, which meant they could not rely on visual or auditory patterns alone.