Here is a link to one of the stories.
The Japanese have supposedly developed a way to record and playback dreams. I think there is an effort to associate certain brainwaves with objects, and it has been greatly exaggerated in news stories.
There is a lot of fMRI and related data on the brain’s response to visual stimuli:
https://www.science.org/content/article/ai-re-creates-what-people-see-reading-their-brain-scans
Is what one “sees” in a dream related to what is seen with eyes? Are the same neural pathways involved?