They currently sit seven points clear of seventh-placed Blackpool with a game in hand.
"We need to get a response on Saturday and I am sure we will. We have done exceptionally well of late so I don't think it is a case of getting carried away with what happened," Pearson told the club's official website.
"I don't think we deserved to lose but we have. We have just got to get on with it. I suppose in the last two home games we expected to get a better return than we have but that illustrates just how tough the league is."