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Learn about Electrooculography (EOG) as a fundamental biosignal measurement technique in this 22-minute educational video from NPTEL-NOC IITM. Explore the principles behind EOG signal generation, which captures electrical activity produced by eye movements through the measurement of the corneo-retinal potential difference. Understand how EOG electrodes are positioned around the eyes to detect horizontal and vertical eye movements, making it valuable for applications in sleep studies, human-computer interfaces, and neurological assessments. Discover the characteristics of EOG signals, including their amplitude ranges, frequency components, and the relationship between eye position and recorded voltage changes. Examine the technical aspects of EOG signal acquisition, including electrode placement strategies, signal conditioning requirements, and common artifacts that can affect measurement quality. Gain insights into the clinical and research applications of EOG technology, from diagnosing eye movement disorders to developing assistive technologies for individuals with disabilities.
