The 30-year-old said you only have to look at the players' faces to see the 'disappointment and hurt', but is sure the club will be active in January if they need to be
The Gunners are currently tenth in the league, some 15 points off the table toppers Manchester United, with the 2-0 defeat to Swansea in their last fixture sparking a supporters revolt against manager Arsene Wenger.
But the Spanish midfielder indicated that while his team-mates all share the pain of their followers, he is confident that they can provide a "big reaction" by working extra hard in training.
“People are hurting, people are upset with themselves, the players are angry," he told the Daily Mirror. "I think that’s a good thing. It’s not like players couldn’t care less, they know what they need to do.
“You look at the players’ faces, the disappointment, the hurt. They want to put it right. You’ve got players here demanding and wanting to do extra training.
“We have been watching videos over and over again of games, looking at what we’ve done wrong. That comes from everyone, absolutely everyone.
“You have to look at yourself and then you have to look at the rest of the players. The most important thing is a player’s attitude, how you go about your job and the players here take responsibility.
“We need to win games, it doesn’t matter how. The players want to put it right. I’m expecting a big reaction. I know we will get that from the players."
Two late goals from Michu handed the Swans victory at the Emirates last time out, in what was Arsenal's second home loss of the season already. The 30-year-old admitted everyone is concerned and suggested that the fans have a right to feel disappointed, but suggested that a strong start against West Brom could improve the atmosphere in north London.
“We need to start well, give the crowd a hand and something to cheer," he explained. "That will give them a lift and that’s so important."
“It’s so important for the crowd to get behind us. But we can’t expect them to get behind us unless we give them something that we want to watch."
The Spaniard also hinted that bringing new players to the club could be the answer to improving their fortunes, but insisted that the decision is for the club's hierarchy to make.
“You can always add quality to any team," he added. "They can make a difference, bring in more spark and I’m sure they will do that if they feel they need to."