I recorded my first brain activity session this morning!

I built the pending database models and added UI to CRUD brain activity recording sessions (BARS)

Before I can record a new BARS, I learned I have to run an impedance test. An impedance test checks the resistance in each Ganglion channel. The higher the resistance, the lower the quality of the signal received by the Ganglion.

So before every BARS, I check the impedance of my FP1 and FP2 sensors (the 2 electrodes I place on my forehead).

I can only start recording a session until the impedance from both electrodes is less than 150 omhs.

I'm saving the binary data for each data packet emitted by the Ganglion. And the Ganglion (at least by default) emits 105 packets PER SECOND.

My next step is to design and build the experiment UI. The experiment UI will allow me to relate all the input types to then analyze them and iterate on the experiments.

I will also run some experiments with 2-3 minute videos.

I'm not going to watch The Conjuring just to experience a bug or error that ruins the recording.

After work, I designed 5 new database models that will help relate and store the experiment tests: experiment, experiment_test, experiment_test_data, video_emotions_data, and timestamps.

Oh yes. I've decided to add a fourth data input.

Under the hood they are called "timestamps". But I will use these timestamps to manually mark moments during the movie when I'm feeling the "target_emotion".

For example, as I watch The Conjuring, I will configure a button on my keyboard to create a timestamp or marker at that moment in time. For The Conjuring, the target emotion I'm trying to measure is fear. And as I watch the movie, I will record moments when I feel fear. I will define what "fear" feels like and try to stay aware of my body during the movie.

These timestamps could help bookmark my movie-watching sessions. Since I won't know when the other biometric readings are recording, this will allow me to mark parts of the movie as I experience it. Some of these markers may overlap during recording sessions. Others may not. And that's okay.