The trick to adding the psychedelic movement effect is to manipulate three parameters of the synth; pitch, volume and stereo pan, and also note velocity. To manipulate pitch, use either the "detune" and "semitone" parameters, or the filter cutoff frequency. In order to make a sound "push" out of the speaker, increase volume and pitch together. To give the feeling of movement, simply alter the stereo pan. So,for the example of making a note push out of the right speaker then go back through the left, youd start with the pan biased to the right speaker, increase volume/pitch, change the pan to a righ speaker bias in a smooth motion, then lower volume and pitch. If you try this on a synth with a modulation matrix you can link different parameters to each other and to midi controls, either directly or inversely. You could even try linking volume and pitch parameters to an LFO for a "throbbing" effect (particularly good on basslines) The bottom line is to experiment with your synths to see what you can come up with. As always with psychedelia, one mans bad trip is another mans paradise.
Happy Producing!
Tempolar