( ( According ( to ( some researchers ) ) ) ( , ( ( ( the presence ) ( of ( ( ( ( ( ( attention ( deficit disorder ) ) , ) ( neurodevelopmental delays ) ) , ) and ) ( ( unusual ( central ( nervous ( system sensitivities ) ) ) ) ( in ( populations ( of ( children ( with ( BPD traits ) ) ) ) ) ) ) ) ) ) ( ( imply ( that ( ( organic factors ) ( have ( ( an impact ) ( on ( ( the development ) ( of BPD ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (VBG According) (PP (TO to) (NP (DT some) (NNS researchers)))) (, ,) (NP (NP (DT the) (NN presence)) (PP (IN of) (NP (NP (NN attention) (NN deficit) (NN disorder)) (, ,) (NP (JJ neurodevelopmental) (NNS delays)) (, ,) (CC and) (NP (NP (JJ unusual) (JJ central) (JJ nervous) (NN system) (NNS sensitivities)) (PP (IN in) (NP (NP (NNS populations)) (PP (IN of) (NP (NP (NNS children)) (PP (IN with) (NP (NNP BPD) (NNS traits))))))))))) (VP (VBP imply) (SBAR (IN that) (S (NP (JJ organic) (NNS factors)) (VP (VBP have) (NP (NP (DT an) (NN impact)) (PP (IN on) (NP (NP (DT the) (NN development)) (PP (IN of) (NP (NNP BPD)))))))))) (. .)))
According to some researchers, the presence of attention deficit disorder, neurodevelopmental delays, and unusual central nervous system sensitivities in populations of children with BPD traits imply that organic factors have an impact on the development of BPD.
(ROOT (S (NP (JJ Neurodevelopmental) (NNS disorders)) (VP (VBP happen) (SBAR (WHADVP (WRB when)) (S (NP (NP (NN development)) (PP (IN of) (NP (JJ nervous) (NN system)))) (VP (VBZ is) (ADJP (JJ disturbed)))))) (. .)))