@user-98789c As a last point: There is also evidence in Aston-Jones & Bloom (1981) that the action-induced increase in LC activity might depend on the type of action, differing between goal-directed actions and general active states representing more automatic behaviours such as grooming (they were doing experiments with mice). This might be relevant given that goal-directed actions would be associated with a stronger sense of agency than automatic behaviours like walking, right?
Again, all this work is indirect evidence for sense of agency because they were not explicitly testing that. If you find more papers on agency and pupil diameter, let me know, Iām very much interested in this field.
Thank you so much @user-480f4c this is all very helpful! I'm also currently working on sense of agency and will definitely let you know if I come across any works done with pupil size.