Analyst Houchang Hassan-yari, who teaches at Canada's Royal Military College, says that the recent reactions of Iranian leaders demonstrate a growing realization on their part that sanctions are starting to have a negative impact on their economy.

VOA: standard.2010.07.23

What happens is a negative symptoms are alleviated, and we start to resurrect the signal in this part of the brain.

结果阴性症状得到了缓解，而大脑中这一部分区域的信号,也开始得到恢复。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选

What happens is a negative symptoms are alleviated, and we start to resurrect the signal in this part of the brain.

结果阴性症状得到了缓解，而大脑中这一部分区域的信号,也开始得到恢复。

斯坦福公开课 - 7个颠覆你思想的演讲课程节选