But their lead would last just five minutes when poor defending from a free-kick allowed Ciaran Clark to head Villa level before Alan Hutton was given acres of space at the back post to score the second-half winner.
"It was another frustrating day for us," said Pearson. "You cannot get away from that. With such a difficult run for us continuing, it is a tough one to take.
"We have taken the lead in the last three games, and got nothing out of them. We have to look at ourselves in terms of the defending, especially in terms of the first goal, so quickly after taking the lead. We have got to defend that first contact in the box a lot better.
"You can see that the players do care. The players are very down today. They are really hurting."
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