Howe watched Cherries squander more precious points during their 2-1 defeat by League One rivals Oldham on Saturday.
The Latics overturned a 1-0 deficit thanks to efforts from Kieran Lee and Oumare Tounkara, with both goals coming late on and in the space of three minutes.
It was the second time in three weeks that Cherries had conceded twice in quick succession, with two injury-time goals depriving them of victory in a 3-3 draw with Notts County.
Howe said: We responded well to defeats last season and that is something we are going to need to do again.
The disappointment is that we feel like we have chucked away five points this season and that rankles with us because we think of where we could have been. But it has gone and we just have to focus on the future and put it right.
You have to react well to negatives, setbacks and disappointments. That has always been the case and it is the same at any level. Maybe on another day, we wouldn't have got punished but we did by Oldham.
Although we had control of the second half, we didn't get our passing game going. Oldham work extremely hard to close you down from the front and their game is all about tempo and pressure.
On a tight pitch, that was difficult to deal with. But it is something we have to adjust to when we come to difficult places away from home.
Cherries had looked set to claim a fourth win of the season and go top of the table after Rhoys Wiggins had netted for the second game in succession to give them the lead. But disaster struck when Lee and Tounkara scored to turn the contest on its head.
Howe added: Any disappointment hits them hard and I think that is a good thing. But, in a sense, you can't let it affect you in the heat of the game. You can reflect on it afterwards. That is perhaps something we need to work on to make sure it doesn't happen again.