Which of these methods is used to visualize articulatory movements through imaging?

X-Ray Microbeam is a method used to visualize articulatory movements by tracking small radiopaque markers placed on the articulators, such as the tongue and lips. When X-ray images are taken, the position and movement of these markers can be observed in real-time as the person speaks, allowing for a detailed analysis of the articulatory processes involved in speech production.

This technique excels in providing a visual representation of how different articulators move in relation to one another, providing researchers with valuable insights into the mechanics of speech. The use of X-ray technology in this context allows for precise measurements and a high degree of temporal resolution, making it particularly effective for studying rapid movements during fluent speech.

Other methods like Electropalatography provide some insight into tongue-to-palate contact but do not offer the same level of visualization. Surface EMG measures muscle activity but does not directly extract visual data on the movements of articulators, and a pneumotachograph measures airflow rather than articulatory movement.