Pomodoro
Brain

Mirki - Wrocław

Meet the Team

Signal anaylsis

Jakub

Scientific research

Wiktor

Full stack

Bartek

What does our solution offer?

How it works?

Fast Fourier Transform

1.

Determining wave frequency ranges

2.

Simpson Function

3.

\sum_{n=0}^{N-1} x[n] e^{-j \frac{2\pi}{N} k n}
Frequency band Frequency
Beta (β) 12–35 Hz
Alpha (α) 8–12 Hz
Theta (θ) 4–8 Hz
Delta (δ) 0.5–4 Hz

Engagement index

\bold{\frac{\text{Beta Power}}{\text{Alpha Power} + \text{Theta Power}}} 
source: C. Maher; F. Claude. Exploring the relationship between learner EEG mental engagement and affect.  Springer Berlin Heidelberg, 2010

Home view

Study session result screen

Future plans

  • Using machine learning methods for classification (already implemented)
  • Denoising EEG time series before FFT

Problems and risks

  • ADHD people time series are more likely to be falsely classified.
source: T., Bianca Lee; VILJOEN, Margaretha. EEG brain wave activity at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of methylphenidate. Neuropsychobiology, 2016, 73.1: 16-22.
[1] CANDRA, Henry, et al. Improving Focus and Concentration in the Classroom while Studying with Lighting Arrangement and Brainwave Stimulation. In: 2018 8th IEEE International Conference on Control System, Computing and Engineering (ICCSCE). IEEE, 2018. p. 186-189.
[2] THOMAS, Bianca Lee; VILJOEN, Margaretha. EEG brain wave activity at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of methylphenidate. Neuropsychobiology, 2016, 73.1: 16-22.
[3] VILLAVICENCIO, Liliana; SINGH, Pallavi; MORENO, Wilfrido. LOW ALPHA LOW BETA AND THETA BRAINWAVES BANDS TO PREDICT STUDENT ENGAGEMENT USING MACHINE LEARNING METHODS. International Journal on Computational Science Applications, 2022, 12.
[4] CHAOUACHI, Maher; FRASSON, Claude. Exploring the relationship between learner EEG mental engagement and affect. In: Intelligent Tutoring Systems: 10th International Conference, ITS 2010, Pittsburgh, PA, USA, June 14-18, 2010, Proceedings, Part II 10. Springer Berlin Heidelberg, 2010. p. 291-293.

Bibliography

Thanks!

Pomodoro Brain

By Bartłomiej Koba

Pomodoro Brain

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