( ( In ( the ( graphical ( plus ( textual ( feedback condition ) ) ) ) ) ) ( , ( they ( ( received ( ( both types ) ( of feedback ) ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT the) (JJ graphical) (CC plus) (JJ textual) (JJ feedback) (NN condition))) (, ,) (NP (PRP they)) (VP (VBD received) (NP (NP (DT both) (NNS types)) (PP (IN of) (NP (NN feedback))))) (. .)))
In the graphical plus textual feedback condition, they received both types of feedback.
(ROOT (S (NP (JJ Positive) (NN feedback)) (VP (VP (VBZ intensifies) (NP (NP (DT a) (NN change)) (PP (IN in) (NP (NP (DT the) (NN body) (POS 's)) (JJ physiological) (NN condition))))) (CONJP (RB rather) (IN than)) (VP (VBG reversing) (NP (PRP it)))) (. .)))