Pastor eta Laka (2013): "Recall that SOV sentences require to hold two arguments in memory before accessing the verb, while SVO sentences require to hols only one."

Hawkins (1994:333) mintzo zen hemen gain efizientzi arazo konparatibo bat an sujetuak on SVO sintaxiak respektu sujetuak on SOV sintaxiak (zein izanen lirake antzekoak nola efizientzi arazoak an objetuak on SOV sintaxiak respektu objetuak an SVO sintaxiak, egínez simetria aski fortzatu bat):

... this results in a real performance constraint on subjects in these [SVO] languages which explains the observed length differential between subjects and objects: object length is unconstrained, so the performance aggregate for objects ends up being longer than for subjects. [Hawkins, 1994:333]

Horren gainean, Pastor eta Lakak (2013) zioten hemen ze:

We argue this difference emerges from the difference in processing facilitation that results from subject-pro in each language. [Pastor eta Laka, 2013]

eta baita ze:

Recall that SOV sentences require to hold two arguments in memory before accessing the verb, while SVO sentences require to hols only one. [Pastor eta Laka, 2013]

Alde horretatik, sujetuen gaineko presioa izanen litzake handiagoa an SOV sintaxiak zein-ez an SVO sintaxiak. Hori dela-ta, gehiago omitituko lirake sujetuak an SOV sintaxiak zein-ez an SVO sintaxiak.