Electroencephalography (EEG) is a non-invasive technique used to record electrical activity generated by neurons in the brain. This method involves placing electrodes on the scalp to measure voltage fluctuations resulting from ionic current flows within the neurons of the brain. EEG is a valuable tool for both clinical and research purposes, providing insights into brain function and aiding in the diagnosis of neurological disorders. It is widely used in the study of brain dynamics, cognitive processes, and the neural mechanisms underlying various mental states and behaviors.
In epileptic patients, EEG plays a crucial role in diagnosing and monitoring epilepsy. During resting state conditions, EEG can reveal abnormalities such as interictal spikes, which are indicative of epileptogenic regions even when the patient is not experiencing a seizure. Experimental setups are also used to identify the modulatory effects of vagus nerve stimulation (VNS). Techniques such as photic stimulation (flashing lights), hyperventilation, and specific cognitive or motor tasks can be employed to observe how VNS influences brain activity.
We account with a Biosemi EEG recording system, offering a range of configurations suitable for various research and clinical needs. This system supports low to mid-density electrode setups, such as configurations with 19, 21, or 64 electrodes, providing flexibility in spatial resolution. Additionally, the system allows for high temporal resolution with sampling rates of 1024, 2048, or 4096 Hz, ensuring detailed capture of rapid neural dynamics. This combination of spatial and temporal resolution makes the EEG system an excellent choice for detailed and accurate EEG recordings in both clinical and research settings.