( ( ( ( ( ( ( Genetic activity ) ( in ( ( ( the ( cerebral cortex ) ) , ) ( which ( is ( involved ( in thought ) ) ) ) ) ) ) processes ) , ) and ) ( ( ( ( ( the cerebellum ) , ) ( which ( is ( involved ( in ( muscle ( and ( motor ( skill coordination ) ) ) ) ) ) ) ) ) , ) ( were ( studied ( in ( ( both groups ) ( of mice ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (NP (JJ Genetic) (NN activity)) (PP (IN in) (NP (NP (DT the) (JJ cerebral) (NN cortex)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN involved) (PP (IN in) (NP (NN thought)))))))))) (VP (VBZ processes))) (, ,) (CC and) (S (NP (NP (DT the) (NN cerebellum)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (VP (VBN involved) (PP (IN in) (NP (NN muscle) (CC and) (NN motor) (NN skill) (NN coordination))))))) (, ,)) (VP (VBD were) (VP (VBN studied) (PP (IN in) (NP (NP (DT both) (NNS groups)) (PP (IN of) (NP (NNS mice)))))))) (. .)))
Genetic activity in the cerebral cortex, which is involved in thought processes, and the cerebellum, which is involved in muscle and motor skill coordination, were studied in both groups of mice.
(ROOT (S (NP (JJ Muscle) (NNS groups)) (VP (VBP are) (VP (VBN controlled) (PP (IN by) (NP (DT the) (NN motor) (NN cortex))))) (. .)))