articulograph, magnetic or electrical is the main technology to study tongue movements during speech tasks.. many articles you will find with this,

4.5tesla or higher MRIs are also being used to study vocal tract dynamics though many technical issues are still persisting in this.

fMRIs and MEGs are other alternatives

Suresh Thontadarya

Thank you for sharing that insightful information. It's fascinating to know that articulograph, magnetic or electrical technology is commonly used to study tongue movements during speech tasks. I'll make sure to explore articles related to this topic. It's also interesting to hear about the use of 4.5tesla or higher MRIs for studying vocal tract dynamics, despite the technical challenges involved. I'm curious to learn more about the specific technical issues researchers face with this approach. Additionally, I appreciate you mentioning fMRIs and MEGs as alternative options. Could you provide some examples of how these technologies have been utilized in studying speech production and articulation?

MRI is helpful in getting spatial information of vocal tract with good spatial resolution. Problem comes when u want time dependent variation in vocal tract during speech. some attempts are being made to develop 3D recontructions from many MRIs obtained.

Alternatively ultrasound and articulographs are helpful for temporal variation studies.

some of references i have read, are here...many more info is available online.

1. Article Real-time MRI and articulatory coordination in speech

2. Article Real-time MRI and articulatory coordination in speech

Articulating Finnish Vowels: Results from MRI and Sound Data by jani saunavaara

4.

Suresh Thontadarya

I find your explanation quite intriguing. I appreciate you providing these references, and I will certainly delve into them to gather more comprehensive information.