"on the ground that"和"in condition that"皆不适合用于此. 因为这两要前因后果一起在同一句出现.例: We oppose to him being the leader, on the ground that he always plays favourites. 我们反对他当领袖是因为他经常特别偏爱某人/事. "on the ground that"是给予理由和原因, 但这比较少用于科学用句.例: She accepted the position on condition that there would be opportunity for advancement. 她接受职位是基于有机会晋升. "in condition that"其实应该是"on condition that"."excessive"可用. "excessive"已有过多和多余的意思, 所以也表明那些信息并不重要.次要并不等同"inferior" (低等, 乃贬义词), 所以不能用它.我的译法:This is due to the occupation of excessive information in the brain."occupation"除指职业以外, 也有占据的意思.