Arsene Wenger admits Arsenal's goal drought is affecting the team and that another draw is a "big blow" to their hopes of getting back into the UEFA Champions League places.
The misfiring Gunners were booed off after they failed to find the net for the fourth straight Premier League game as their clash with Fulham ended 0-0 at the Emirates.
Robin van Persie was twice denied by Mark Schwarzer from close range in the first half, with the inspired Fulham keeper also saving well from Abou Diaby and Andrey Arshavin.
Fulham fought hard and were anything but negative, coming close to taking an early lead through Andy Johnson.
"It was a big disappointment and a very disappointing result. We were desperate for the three points," Wenger said.
"Fulham played well and credit to them, they were the better side in the first 20 minutes and created more movement.
"After, we slowly took over but we lacked a bit of sharpness to take our chances and our passes weren't quick enough to give them real problems.
"I don't think it was a 0-0 game because both sides created chances, but we had weaknesses both defensively and offensively.
"There is a big desire to do well and to make sure we score, but it is not there at the moment.
"There are plenty of reasons - one of them is certainly psychological, but overall it's hard to assess what is tactical, what is technical and what is psychological.
"The more I speak about it, the more there is a problem.
"I don't think it's about us only trying to score the perfect goal - the perfect goal is only when the ball touches the net."
Wenger admitted it will now be an uphill battle for Arsenal to force themselves back into the top four ahead of Aston Villa, who play Stoke on Sunday.
"Today's result doesn't help and this is a big blow to us, but it is difficult to assess," said the Gunners boss.
"However, problems don't last forever and at some stage we will score goals because we have quality and we continue to fight."
The goalless run is Arsenal's worst for more than 15 seasons and could have hindered their chances of breaking back into the top four.
The North London side will play West Brom on Tuesday night in a bid to change their fortunes which sees them dangerously close to losing out on fifth place to Everton.