Category: Tracks

The audio track woke me up after just a few seconds. My eyes can be seen opening in the real world after looking around in the dreamworld in the minute featured above. I have since started a shortlist of tracks that play only a few melodies for a couple of seconds that we have been having more luck with: Shortlist.

Download entry as Lucid Scribe Data (LSD) (103 MB).

I rolled into position at 0320 and was dreaming for the better part of the hour. The audio triggered at 0333, again at 0334 and I dreamt through the tracks without waking. I recalled 3 dreams.

Download entry as Lucid Scribe Data (LSD) (127 MB).

Rapid Eye Movements During Dream

The REM-detection algorithm is now ready to be burnt to the standalone version of the sleep lab and can be seen climbing the planes in the minute above.

I could hear Bob’s voice, but had the most annoying itch on my chin that caused major instabilities in NPR. I tried to hang on for dear life, but the itch was so overpowering that I could not hold still for long. When the eye movements subsided a few minutes later, the twitch grew so strong that it almost triggered the next track.

Download entry as Lucid Scribe Data (LSD) (95 MB).

Sleep and Consciousness Research Graph

I caught another today… the pillow can be seen in the minute above and doesn’t affect the algorithm anymore.

I have had a few inquires about using the setup without the headband and this shows that it could work if you can sleep close enough to the night-table or have the camera mounted above the bed somehow. I will try to record a session like that one night…

Sleep and Consciousness Research Graph

I now have an infrared LED shining down on me from a cupboard… and the recordings have been out of this world! Gone are the dark ages with just a few squiggly lines of questionable EEG signal quality.

The latest version of the Halovision plugin records an image-stream of any movements and Lucid Scribe automatically replays them when reviewing a session. This helped a lot with writing filters for the artefacts, like when the camera re-focuses.

The eye movements that triggered the audio track can be seen in the minute above. I was re-taming a hippo that I had saved as a baby in another life!

Here is the finalised release candidate of the Halograph EOG – a headband with a night-vision camera held in place by two bendable selfie-sticks:

It is more comfortable to sleep in than I had ever hoped. I can sleep on either side or on my back with complete freedom of movement with the 2 meter cable.

The age of light is nigh; this is light-bending!

Sleep and Consciousness Research Graph
Some of my sleep data which potentially shows dream detection with sound activation (according to MPC)

Download entry as Lucid Scribe Data (LSD) or Comma Separated Values (CSV).

After explaining the REM-detection algorithm to a friend over the weekend, I was inspired to shed some light on it by plotting each step in the loop on the graph so that it becomes easier to visualize.

The first printout that I recorded last night, 5 minutes past midnight, shows the strained beats picked up by the halograph FM. The fREM channel can be seen counting up each blink or strained beat that peaks over the top line and then triggers the next track in the playlist after the 8th blink.

13 Strained Heartbeats at 0005

And the second printout, recorded at 0017, shows the same thing happening with the OpenREM channel from the OpenEEG electrodes.

Eye Movement Count from EEG at 0017

This will make it a lot easier to perfect the algorithm by highlighting where it was thinking about triggering. The tracks at 0618 made it into the dream and helped me stave off a hoard of zombies, but didn’t trigger lucidity…

Download entry as Lucid Scribe Data (LSD) or Comma Separated Values (CSV) or watch the video.

Triggering lucidity
I became aware of the previous song stopping abruptly. Not from the song that started in the minute above. A flurry of eye movements can be seen in the middle of the snapshot with traces of another one of those 30 second waves in the first half.

According to a team of neuroscientists at UW there are:

Neurons in the mammalian brainstem that focus exclusively on new, novel sounds, helping humans ignore ongoing, predictable sounds. The neurons are located under the cortex in a part of the brain called the inferior colliculus. These neurons provide a unique model that can be used in the future to explore some of the neural mechanisms underlying memory, prediction and selective attention.

So instead of just introducing new signals to attain lucidity, it may be worth further investigation to trigger lucidity by removing persistent signals…

Download entry as Lucid Scribe Data (LSD) or Comma Separated Values (CSV).

REM Sleep After Ninety Minutes
The first audio track played exactly 90 minutes into the session and the movements lasted for the duration of the song. I was expecting the vocals to kick and was disappointed when they didn’t. I will have to cut them in as soon as possible. The second audio track played 65 minutes after that; six blinks can be seen in the minute above before it woke me up.

Download entry as Lucid Scribe Data (LSD) or Comma Separated Values (CSV).

Sleep and Consciousness Research Graph
First night using the FIELD mouse (and that pun will probably never get old). I had my mouse duct taped to my hand, and I messed around with it for like an hour and a half trying to get it comfortable. Finally I did, and I ended falling asleep around 2:30, forgetting to actually hold down the button.

However upon waking I discovered that I held down the button 3 times for a very long time. Once from 3:04am to 3:45am, after that there was some small movement and then another click just long enough to trigger it again. Next one was from 5:53am to 6:34 (featured), another flurry of movement. And the last one was from 7:09 to 7:25, just before I woke up, the movement was delayed by 30+ seconds this time.

If any of those were from me dreaming, I didn’t experience/remember any of them. It’s quite likely that I was just laying on my hand or something. I also woke with my headset unplugged so the delay in movement on the third “dream” could have been from that. Though just a note, if these were dreams, it would mean that the songs were triggered just after they ended, so it might be a good idea to have a version where the song is triggered after oh 10-20 minutes of holding down the mouse.

I woke up feeling very refreshed for only having had 5 hours of sleep, so I’ll definitely be doing this again, hoping for better results though.

Download entry as Lucid Scribe Data (LSD) or Comma Separated Values (CSV).