## 6 Conclusions  
The Chameleon-1 helmet has been proven in practice to exceed the initial expectations of the project, its main function being the ability to expand and adapt to any type of cranial anatomy; with this feature, it achieves great advantages compared to other similar devices. Despite its structure and the various components used, the helmet does not generate discomfort after prolonged sessions, fulfilling its objective of being ergonomic \begin{table}
\begin{tabular}{p{113.8 pt} p{284.5 pt}} \hline \hline
**Company** & **Website** \\ \hline NIHON KOHDEN & [[https://us.nihonkohden.com/products/vitaleeg-wireless-eeg-headset/](https://us.nihonkohden.com/products/vitaleeg-wireless-eeg-headset/)]([https://us.nihonkohden.com/products/vitaleeg-wireless-eeg-headset/](https://us.nihonkohden.com/products/vitaleeg-wireless-eeg-headset/)) (accessed on 5 March 2025) \\ \hline BITBRAIN TECHNOLOGIES & [[https://www.bitbrain.com/es/productos-neurotecnologia/dry-eeg/diadem](https://www.bitbrain.com/es/productos-neurotecnologia/dry-eeg/diadem)]([https://www.bitbrain.com/es/productos-neurotecnologia/dry-eeg/diadem](https://www.bitbrain.com/es/productos-neurotecnologia/dry-eeg/diadem)) (accessed on 5 March 2025) \\ \hline ZETO INC & [[https://zeto-inc.com/device/](https://zeto-inc.com/device/)]([https://zeto-inc.com/device/](https://zeto-inc.com/device/)) (accessed on 5 March 2025) \\ \hline CGX & [[https://www.cgssystems.com/quick-20m](https://www.cgssystems.com/quick-20m)]([https://www.cgssystems.com/quick-20m](https://www.cgssystems.com/quick-20m)) (accessed on 5 March 2025) \\ \hline \hline \end{tabular}
\end{table} 
Table 9: Companies and their EEG product webpages. for long periods of use. Implementing an ergonomically optimized design and improved arrangement of the electrodes allows obtaining a more precise and focused signal in the region of interest. The helmet presents good functionality, allowing for an expansion mechanism that does not compromise comfort, making it suitable for long therapy sessions. In addition, the Chameleon-1 helmet is easy to assemble and can be manipulated by anyone without the need for extensive knowledge in neurology, making it accessible and easy to use. The findings of this study demonstrate that the Chameleon-1 helmet provides improved electrode placement precision and signal quality compared to other EEG helmets. By targeting F3 and F4, the device enables more accurate detection of brain activity states, including active and relaxed states. This improved signal reliability suggests that the helmet could be particularly useful in applications such as neurofeedback, cognitive training, and stress monitoring. To evaluate its performance, tests were conducted on multiple subjects, monitoring theta, delta, alpha, beta, and gamma brainwave bands. The recorded signals were consistent with expected patterns based on each subject's condition, confirming the helmet's ability to capture relevant neural activity with precision. Although the Chameleon-1 helmet allows for electrode placement in additional positions within the extended 10-20 system, this study focused exclusively on the F3 and F4 locations. Furthermore, the results show that the helmet provides consistent and reliable EEG signal detection during both concentration and relaxation phases. The enhanced electrode stability minimizes movement, leading to higher signal quality and the more precise monitoring of cognitive states. These technological advancements reinforce the helmet's potential as a valuable tool for EEG-based research and clinical applications. However, while the study highlights its technological advantages, further research is needed to explore its full range of applications in cognitive and therapeutic settings. The current helmet is designed to cover the frontal and front-concentral brain regions, accommodating electrodes at F3, F4, AF3, AF4, F1, F2, F5, F6, FC3, FC4, FC1, FC2, FC5, and FC6. This configuration effectively captures neural activity related to the planning and control of cognitive and motor functions.