这个句子有问题,顺序不对,标点不对.应该改为："Phychologists have known for decades what's going on inside our head that affects our senses."其中what引导宾语从句,后面的that引导定语从句.翻译为“心理学家们...Psychologists have known for decades that what’s going on,inside our head affects our senses. For example, poorer children think coins are larger than they are, and hungry people think pictures of food are brighter.这是书上的一句话哦，没有错哦啊，是我看错了，抱歉，但是inside our heads前面严格来说不该有逗号。that引导宾语从句，what引导主语从句。that引导的宾语从句说明知道的内容，而what’s going on inside our head这个句子在宾语从句中作主语，而what又做主语从句中的主语。翻译为：“心理学家们早在几十年前就已发现，存在于我们脑子里的东西会影响我们的感知。”