Johnson is perplexed by his recent run which has ended talk of Sunderland moving him on during the transfer window.
He told the Daily Mail: "I've done nothing different. I honestly have not changed anything at all. I have always been confident in myself but things just weren't coming off for me.
"I haven't done anything different and have just kept working hard. You don't turn into a bad player overnight and thankfully my best form has returned.
"We are playing a different style of possession football now and it possibly suits the wingers more. Maybe that has been a factor. A lot of times in the past I had to run 70 yards with the ball to get out of my own half but now I am a lot more fresh. Maybe that has made a difference, I don't know."
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