Glitch art is the aesthetisization of digital or analogue errors , of either artefacts or other bugs by either corruption or manipulation .
1 Open the image you are using .
2 Duplicate the image then darken and mask off the background using the quick selection tool .
3 Next use the marquee tool to create long thin rectangular shapes over the image where you want the glitching effect to be as below .
4 Next select filter /distort/wave and type 2 for the amount of generators with min 20 and max 30 for both wavelength and amplitude . Also use filter/distort/pixelate/fragment as below .
5 Continue with this method until you are satisfied you have enough glutting for your required affect .
6 Repeat this process twice and use free transform to move the image slightly left right up or down to enhance the glitching effect .
7 Make a 50% grey layer and choose filter/filter gallery/halftone pattern with line pattern , 1 size and 50 contrast then choose the subtract effect . now darken that layer with control L/levels to your liking .
8 Use filter distory shear to bend the image to your liking . Also add any effects or layers as you require to achieve your desired effect as my image below .