( Electrodes ( ( are ( ( attached ( to ( the body ) ) ) ( to ( ( ( provide readings ) , ) ( ( giving ( the ( patient feedback ) ) ) ( ( necessary ( to ( determine ( whether ( ( their ( mental powers ) ) ( are ( causing ( the ( desired physiological ) ) ) ) ) ) ) ) ) changes ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Electrodes)) (VP (VBP are) (VP (VBN attached) (PP (TO to) (NP (DT the) (NN body))) (S (VP (TO to) (VP (VB provide) (NP (NNS readings)) (, ,) (S (VP (VBG giving) (NP (DT the) (JJ patient) (NN feedback)) (NP (ADJP (JJ necessary) (S (VP (TO to) (VP (VB determine) (SBAR (IN whether) (S (NP (PRP$ their) (JJ mental) (NNS powers)) (VP (VBP are) (VP (VBG causing) (NP (DT the) (VBN desired) (NN physiological)))))))))) (NNS changes))))))))) (. .)))
Electrodes are attached to the body to provide readings, giving the patient feedback necessary to determine whether their mental powers are causing the desired physiological changes.
(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)))) (. .)))