Multichannel Acquisition Platform for Electrophysiological Signals and Multimodal Stimulation

This project focuses on the development and implementation of a comprehensive technological platform designed for the simultaneous acquisition of multichannel electrophysiological signals, including Electroencephalography (EEG), Electromyography (EMG), and Electrocardiography (ECG). The platform addresses the local need for advanced tools to study sensory systems in an integrated manner, overcoming the limitation of studying these phenomena separately. The proposed solution involves a modular architecture integrating hardware and software components. Signal acquisition modules will be based on the high-resolution (24-bit) ADS1299 Integrated Circuit and the STM32F407VG controller, supporting up to 32 inputs. Concurrently, sensory stimulation modules will be developed for auditory, visual, and somatosensory channels. The auditory stimulator will handle frequencies up to 96000 Hz, the visual stimulator will control LED panels via PWM, and the somatosensory stimulator will generate programmable electrical stimulation up to 8 mA. The system's main control will be managed through a user interface implemented in Labview, communicating with the hardware via Ethernet/UDP. Signal processing will incorporate advanced techniques such as the Spectral F-Test and Magnitude Squared Coherence (MSC), along with pre-processing algorithms for artifact removal (60Hz noise, blinking). The final goal is to validate the platform through testing on healthy individuals for use in scientific research and as an educational tool.<br/><br/><b>Goal</b>: <br/>To develop a modular technological platform for multichannel acquisition of electrophysiological signals (EEG, EMG, ECG) and multimodal sensory stimulation (auditory, visual, and somatosensory), aimed at supporting research and education in the processing of these signals.<br/><br/><b>Research lines</b>: <br/>Biosignals and medical images