The “S” in “S(X)” and “S(A)” seems different to me. If I rename the “S” in “S(A)” to “I”, it would make more sense to me:
A = action of standing up (which gets actually executed if positive valence)
I(A) = imagined scene of myself standing up
S(I(A)) = the thought “I am thinking about standing up”
The “S” in “S(X)” and “S(A)” seems different to me. If I rename the “S” in “S(A)” to “I”, it would make more sense to me:
A = action of standing up (which gets actually executed if positive valence)
I(A) = imagined scene of myself standing up
S(I(A)) = the thought “I am thinking about standing up”