The three members of the core group are all considered to be connected to different areas of the four-pile plate (light and sound information) and to some extent - especially 1/ - receive pain and temperature stimuli.
1/ Nucleus posterior thalami.
2/ Nucleus suprageniculatus thalami.
3/ Nucleus limitans thalami.
Morys, J. et al . 1989, Nucleus limitans thalami - comparative anatomical study. Acta neurobiol. Exp. 49: 239-241