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Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

alzheimersbuddy.com

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Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#51

Post by roflmaostc »

personalityson wrote: post #50
adv0r wrote: post #45

Warning: This just fucked my 2k$ 4k LG display. I ran the website 15 minutes ago and quickly closed it after 15 seconds. My screen is still flickering in the portion of the screen where it used to be the webpage. I rebooted. Still happening FML please put a big disclaimer.

I have the same, but a thought crossed my mind that it somehow stimulates your vision so that you start seeing the flickering which is always there

For me, I can exclude this. I only notice it on the now broken screen, four other screens are fine (where I did not run it).

Also my slow-mo phone video confirms it.

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#53

Post by [deleted] »

adv0r wrote: post #45

Warning: This just fucked my 2k$ 4k LG display. I ran the website 15 minutes ago and quickly closed it after 15 seconds. My screen is still flickering in the portion of the screen where it used to be the webpage. I rebooted. Still happening FML please put a big disclaimer.

[deleted]

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#54

Post by SideburnsOfDoom »

"Flashing Light and Sound at 40Hz helps Alzheimer’s" is an extra-ordinary claim.

The research that might support the claim would be interesting, more so that Javascript that breaks LG monitors.

Although that's interesting for totally different reasons.

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#55

Post by throwaway4aday »

eigenvalue wrote: post #30
throwaway4aday wrote: post #27

Could you just buy a cheap signal generator and hook it up to some LEDs and headphones to make a hardware version of this?

Yes you could. But the only thing I saw online that’s ready to buy like this was over $100!

yikes! a cheapo generator on Amazon is like $10 and you can probably get them for less on AliExpress. Not sure if you'd have to amplify the signal for either LEDs or headphones but I imagine you'd want some kind of volume control for the headphones. Total cost could be $30 or less and would make a fun weekend project even for electronics noobs like me.

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#56

Post by Workaccount2 »

Given the problems people are having with their monitors, and the inherent issues with timing on a 60hz screen and timing on a enormous mass of abstraction...

Using a microcontroller with a DAC and a LED array seems particularly well suited for this, while still being firmly a beginner level project.

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#57

Post by eigenvalue »

adv0r wrote: post #45

Warning: This just fucked my 2k$ 4k LG display. I ran the website 15 minutes ago and quickly closed it after 15 seconds. My screen is still flickering in the portion of the screen where it used to be the webpage. I rebooted. Still happening FML please put a big disclaimer.

Jeez, I'm really sorry, I hadn't thought of that. It worked fine on all my screens without any issue (I tried it on 3 different ones). I just added a warning about this. Sorry again, I hope your screen recovers.

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#58

Post by kkwtflz »

monkey_monkey wrote: post #13

Just a warning - running this for a few seconds has left my secondary display with an ongoing flicker which seems to be improving after 10 minutes and a reboot. [edit to add] 10 minutes later - the flicker has gone (or I can't perceive it)

Same on my Dell. What seems to stop it is turning off HDR and back on again (using the monitor's OSD menu)

Re: Show HN: Alzheimer's Buddy: Use Flashing Light and Sound at 40Hz

#60

Post by eigenvalue »

adv0r wrote: post #45

Warning: This just fucked my 2k$ 4k LG display. I ran the website 15 minutes ago and quickly closed it after 15 seconds. My screen is still flickering in the portion of the screen where it used to be the webpage. I rebooted. Still happening FML please put a big disclaimer.

People are saying that that if you turn it off (maybe even unplug it) for 10 minutes, it goes away. Hopefully that's the case for you.
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