The United States went into the final day in a commanding position with a 10-6 lead but ended up on the receiving end of a remarkable European comeback.
Garcia, who beat Jim Furyk on the 18th green, believes that nerves got the better of their opponents.
"We knew if we got going early we needed to put the American team in a situation where we wanted to see how they felt with a bit more pressure on," said Garcia. "Obviously everything was going their way throughout the whole week. They were making the putts, they were getting the good breaks here and there.
"We were just waiting to change that a little bit and see if we could do the same thing they did to us in '99 and see how they could react against that. I have been in that position, Lee [Westwood] has been in that position, Jose has been in that position, obviously Paul [Lawrie] has been in that position and we know how it feels - it's not easy.
"It was a combination of playing great and maybe then that little bit of pressure getting to them."
Garcia has now won four Ryder Cups with Europe.