neuroMoon
AIDS, LEAKAGE
The NF protocol used is aimed at increasing the sensorimotor rhythm-theta ratio (SMR/T). The SMR band (or low beta componentsDuring the processing of EEG signals, an important step is the batching and analysis of the incoming signals. Each batch is composed of a four-second interval, during which 500 EEG samples are collected. To ensure continuity and smooth transitions, we applied a 100-sample overlap between consecutive batches. This four-second duration allows for a granular examination of the signals and the subsequent calculation of their power across the desired frequency bands, a critical aspect of our game development application.For the segmentation and subsequent analysis, the code employs the Welch method, a widely recognized technique for estimating the power spectral density (PSD) of time series data like EEG signals. The Welch method divides the EEG signal into overlapping segments using a specified windowing function, in this case, the Hann window, which mitigates spectral leakage. For each segmented epoch, a periodogram is computed. This is achieved by first applying the chosen window (Hann) to the segment, followed by computing its Fast Fourier Transform (FFT). The FFT operation plays a pivotal role as it translates the EEG signal from the time domain into the frequency domain. This transformation illuminates the distribution of the signal's power across various frequencies. The obtained periodograms from all segments are then averaged, producing a consistent estimate of the PSD.Having estimated the PSD, our focus then shifts to power calculation across desired frequency bands. This is where the Simpson method comes into play. The Simpson method is an integral component of our approach. Given the PSD estimates, it calculates the total power within the desired frequency range. This is done by integrating the PSD values using Simpson's rule, which offers a more accurate approximation compared to standard summation techniques.Taken together, the Welch method for PSD estimation and the Simpson integration for power calculation offer a thorough insight into the EEG signals. The clear distinction of power across specific frequency bands aids in fine-tuning our game development application, allowing for real-time adaptability based on the user's EEG data.The NF training method takes the form of a video game that runs on an Android tablet (Fig. The velocity of the spaceship was calculated using a formula that takes the default speed of the spaceship, the new SMR/T ratio value and the calibrated value obtained during the calibration phase into account:wherein 