Main Idea Perception of Written Stories and in Pictures Among Impaired Right Hemisphere Patients

Main idea perception of written stories and in pictures among impaired right hemisphere patients Abstract The right hemisphere is considered to complement the language processing abilities of the opposite hemisphere; it is responsible for the processing of secondary and unusual characteristics of linguistic stimulates. This processing enables, among other functions, the comprehension of metaphors and humor. Additionally, it enables the execution of inferring from spoken and written discourse. Studies which deal with common impairments among right-hemisphere-damaged (RHD) individuals, found that inference processing of written stories and narrative sequences presented in pictures was impaired. This impairment could damage the ability to create global coherence, which is an important component of central theme comprehension of different types of narrative. Another important component is superstructures, schemas which aid creating, remembering and producing the main ideas of spoken and written discourse. Other studies consider impairment in creating global coherence, or Theory of Mind impairment, as the source of central theme comprehension impairment among RHD individuals. Discourse is an integral part of interpersonal communication, and of proper social conduct. The themes chosen for conversation reflect the functional role of discourse from semantic and pragmatic points of view. The aim of the current study is to deepen the current knowledge concerning central theme comprehension among RHD individuals following cerebrovascular accident (CVA), in two genres of written discourse (classic stories and stories with a twist), and in situations represented by single pictures. Unlike written stories, the extraction of the central theme out of a single picture requires focusing on a single situation and relying on non-linguistic visual information. Differences concerning central theme comprehension in the different discourse genres and in the pictures might be able to assi