There are a number of rubrics in Synthesis 9 that can be used.

MIND - IMPRESSIONABLE
am-c. ambr. ant-c. Ars. aur. aur-m. bar-c. CALC. calc-p. Canth. CARC. CAUST. Chin. CIC. COCC. coff. con. croc. cypra-eg. dulc. ferr. GELS. graph. hep. ign. IOD. kali-p. lach. lyc. Nat-c. Nat-m. nit-ac. nitro-o. Nux-v. phos. plat. positr. PULS. rosm. sel. sep. Sil. Staph. sulph. Symph. tarent. teucr. Thuj. tritic-vg. TUB. vanil. Verat. viol-o. Zinc.

And

MIND - NAIVE
arg-n. arizon-l. Bell. bov. chin. Cic. falco-pe. hyos. ignis-alc. Phos. stram. sulph. vanil. VERAT.

And if it is external impressions

MIND - SENSITIVE - external impressions, to all
anac. arg-met. arn. ars. aur. bac. bell. Canth. caps. carc. castm. cham. chin. choc. clem. Cocc. coff. Colch. cypra-eg. dys. gaert. gard-j. hep. hydrog. Iod. irid-met. just. kali-p. Kali-s. kola lac-c. lach. limest-b. lyc. lyss. mag-m. nat-m. Nit-ac. Nux-v. olib-sac. ph-ac. PHOS. plat. positr. ptel. sanic. sil. spect. Staph. stry. suis-em. Tritic-vg.