In big disasters like southwest China earthquake, the country shall prepare long-term psychological counseling for victims, which might last for years, said a renowned psychologist Sunday.

"Big disasters like this devastating earthquake will exert long and deep effect on victims. They might need psychological counseling for quite a long time, three to five years and even longer," said Ye Bin, director of the psychological counseling center of Shanghai-based East China Normal University, in a telephone interview.

In the first stage, psychological counseling will focus on comforting and soothing the mood of victims and the psychological rehabilitation usually starts one or two weeks after the disaster, he said.

"When the local situation becomes stable, it will be the proper time for psychologists to provide systemic counseling," he said.

With Ye and his colleagues as backup, a team made up of eight volunteer psychologists, disaster control and public relations experts left Shanghai for quake-hit Sichuan on Sunday.

"They aim to collect first-hand information about psychological need among local people and prepare for our long-term counseling program," Ye said.

The university's counseling center plans to initiate a counseling program for teachers and students in quake-hit regions with the international non-governmental organization Outward Bound's branch in Taiwan, which had worked for victims in the 7.3-magnitude earthquake in Taiwan in 1999. The program will start in late June.

"Many psychologists have volunteered to take part in the team," said Ni Jian, the team head and president of Shanghai Sunnybund Public Relations Consulting Co. Ltd. "But we choose members very carefully because this will be a risky task. According to previous experience, some psychologists had psychological problems themselves and even had to quit the job after counseling for disaster victims."