4 ms·
Tricks to Play with your Brain
- pook 16y agoIs #2 an illusory rickroll?
- jrockway 16y agoMaybe, maybe not. With respect to the first one... I sleep with earplugs and a sleep mask. I don't hallucinate with these on -- I just don't get woken up by sound or light.
- ZeroGravitas 16y agoI can see shapes, particularly faces, just by closing my eyes for short periods. I assumed this was normal, e.g. seeing things in clouds, inkblot tests etc. so I think they're just overstating things slightly.
- JadeNB 16y agoIs it just me, or are the pictures for #7 and (maybe) #1 a bit NSFW?
- limmeau 16y agoDepends on your W, but I'd rather be worried about being caught in front of my desk with ping-pong eyes.
- donaq 16y agoLift your right foot a few inches from the floor and then begin to move it in a clockwise direction. While you’re doing this, use a finger your right index finger to draw a number 6 in the air. Your foot will turn in an anticlockwise direction and there’s nothing you can do about it! Hmm... this might be overstated. I could do it with a little bit of concentration.
- nandemo 16y agoYes, it's overstated. To play the piano, for instance, you have to do harder things than that, like playing a 3 against 4 rhythm (left hand plays 3 notes while the right hand plays 4).
- Gormo 16y agoI am 30 and was able to hear the 18000Hz tone without a problem (and it's extremely annoying). It's very similar to the sound produced by a CRT that's turned on without video input. Has the "under-20" presumption been empirically tested?
- qw 16y agoSame here. I'm 31 and can hear that sound as well.