How to create this illusion effect using displacement map

[atawil68]

I'm trying to reproduce this kind of effect. I tried using displacement map but, not really giving the same effect. Maybe i'm not using the right filter but i need help please...

[Randy Hufford]

give me the file without the effect applied and i will experiment with it. Looks like maybe liquefy?

[Semaphoric]

How about the Pinch filter?

[Chuck Uebele]

That looks like the spherize filter.

[Nancy OShea]

Try  Filter > Distort > Spherize.

You'll probably need to apply the filter to a 2nd striped layer.

[Semaphoric]

Sphereize has thos "Hard Edges", which is why I recomended Pinch: