The Gabon international’s 29 goals in all competitions last season helped fire the Gunners to FA Cup glory and saw him rewarded with a lucrative new contract in September.
Since putting pen to paper on that fresh deal, worth a reported £300,000-a-week, Aubameyang has scored just one Premier League goal.
Despite the 31-year-old playing in his favoured central striking role in Arsenal’s last two appearances, his performances have not improved.
Mikel Arteta’s side are languishing in 14th place in the table after losing five of their opening 10 games and are particularly struggling to carve out clear-cut chances.
But Bent believes that despite the team’s lack of creativity, Aubameyang must take responsibility for his subpar displays.
‘They [Arsenal] can’t get the best out of Aubameyang, he’s not playing well at all,’ Bent told talkSPORT. ‘But not only that as well, I know we keep talking about, ‘We don’t create chances for him’ but he’s got to do more himself as well.
‘You can’t keep obviously blaming everyone else because he was superb up until he signed the contract.
‘We do need creativity in there, I understand that, but he can still be doing a lot more for the team as well.
‘When you look at Aubameyang’s performances before he signed the contract, he was running after everything, he was tracking back, putting tackles in.
‘He started against Fulham, superb again and got this contract and he just seems to have come away from it a little bit.
‘I understand that strikers go through patches in their career where you’re not quite scoring goals and confidence is low but you can still put effort in, work-rate in, and I think right now questions have to be asked.’