Right hemisphere and metaphor comprehension: A connectionist perspective.

Metaphor comprehension is a cognitively complex task, with evidence pointing to the engagement of multiple cerebral areas. In addition, the involvement of the right hemisphere appears to vary with cognitive effort. Therefore, the interconnecting pathways of such distributed cortical centers should be taken into account when studying this topic.

Hemisphere stroke: impact on the semantic lexical aspects of language.

Objective: To investigate if right hemisphere stroke is associated with decreased lexical-semantic ability.

Methods: We compared subjects with right hemisphere brain damage after stroke with healthy controls using the validated version of the Montreal Evaluation of Communication to assess lexical-semantic domains of language.

Results: Sixteen patients and thirty-two controls were included.