Which imaging technique is preferred over X-rays for articulatory measures?

Functional magnetic resonance imaging (fMRI) is preferred over X-rays for articulatory measures because it provides non-invasive, high-resolution images of brain activity and structures while allowing for the assessment of various tasks, including speech production. fMRI works by measuring changes in blood flow, offering insights into the neural correlates of articulatory processes, which is essential for understanding the complex interactions between brain function and speech.

In contrast, X-rays involve exposure to ionizing radiation, which can be harmful and does not provide detailed information about brain activity or articulatory motion. This makes fMRI a safer and more informative choice for studying the underlying neural mechanisms that contribute to speech production and articulation.

While other options, like electromyography, cinematography, and pneumotachographs, provide valuable data on muscle activity and airflow during speech, they do not replace the comprehensive insights gained from fMRI regarding the brain's role in speech articulation.