lateralisation vs lateralization

lateralisation and lateralization both are nouns.

Word	Noun	Adjective	Verb	Adverb
lateralisation	Yes	No	No	No
lateralization	Yes	No	No	No

As nouns, lateralisation and lateralization are synonyms defined as:

lateralisation and lateralization: localization of function on either the right or left sides of the brain

Other synonyms of lateralisation include laterality.

lateralisation (noun)	lateralization (noun)
localization of function on either the right or left sides of the brain	localization of function on either the right or left sides of the brain