Pearson is set to replace Brown's good friend Paul Duffen who resigned from the role last week, sparking further questions about the Hull manager's future.
Brown has come in for heavy criticism having overseen just three wins from the Tigers' past 31 games.
Asked what he thought Pearson, who was watching from the stands at Turf Moor, would have learned from yesterday's game, he said: "He would have learned that he has a manager that is still at the helm and one that is willing to put his neck on the line for the cause.
"And that he also has a group of players that will do the same for the manager. The players are disappointed, not at themselves, not at me, maybe at something else."
Confirming he had spoken to Pearson in person, Brown said: "Yes. It was before the game two days ago and before the game yesterday (Friday) and I'll speak with him again after the game."