A new research has revealed that people do change their personal opinions depending upon other people's state of mind but the change lasts only for three days.
Rongjun Yu of South China Normal University said that exposure to others' opinions does indeed change our own private opinions but just like working memory can hold about 7 items and a drug can be effective for certain amount of time, this change also is not forever.
However, the reason behind the change lasting for just three days is still uncertain, but the researchers plan to investigate further to find a neurological reason behind the effect and whether it is possible to manipulate the change to last for shorter or longer durations.