This question led me to a very interesting idea.
Is it possible to create a camouflage or pattern that when applied to military uniforms would distract the viewer, make him feel uncomfortable or even make him lose consciousness or simply prevent him from recognizing a human even though he would see the shape and contours of an enemy soldier? It would be a "Memetic agent" in SCP foundation terms, basically a picture or pattern which is harmful to the brain. If soldiers would wear uniforms with such a pattern or military vehicles would be painted accordingly, they would have the advantage of not even being aimed at by enemies. This would benefit them seriously, at least until the opposing faction develops automatic computer-based aiming systems or weapons. For simplicity's sake, let's consider that the soldiers who wear the uniforms are either immune, wear special goggles that neutralize the effects of the patterns or are trained to not look at each other.
Do patterns or pictures exist which cause one or multiple of the following symptoms upon observation?:
Distraction and unobservability (e.g. viewer will somehow not be able to focus on the enemy because he will stare away or the viewer's brain will not recognize the object as a human despite having a human silhouette.
Discomfort (nausea, headaches)
Inability to concentrate
Loss of consciousness
Amnesia (e.g. Forgetting what the camouflage looks like)
Severe psychic trauma (e.g. losing the ability to recognize humans if being exposed to the pattern for a long time, etc...)
Bonus (purely optional): Loss of free will or any other effects that might cause the soldier to surrender or even change sides; paralysis and death
Bonus: patterns that "knock out" standard computers or software, either by abusing built-in limitations or by "breaking" scripts. Look up the pattern which is used on the new Euro banknotes and disallows Photoshop and comparable programs to open pictures on which these notes are depicted.
Can you provide me with examples?