Functional and Neuroanatomical Analysis of Extralinguistic Disorders in Right Hemisphere-damaged Patients
Year: 2005
Type: article
Study design: Observational Study
Abstract: The purpose of this article was to determine the prevalence of extralinguistic (non-aphasic)disorders, its clinical picture, and neuroanatomical correlates in right hemisphere – damaged patients. The cerebral perfusion pattern was determined by single-photon emission computed \ntomography (SPECT) in a group of 40 stroke patients with damage to the right hemisphere (RHD). The ontrol group included 60 healthy subjects. The Polish version of the \nRight Hemisphere Language Battery (RHLB-PL) was used in the study. The group of RHD patients was not homogeneous with respect to character and severity of language disturbances. \nSome patients show very mild and selective linguistic disturbances, while others demonstrate more serious and generalized difficulties. The RHD patients, in comparison to \nhealthy individuals, exhibited several communicative impairments, “apragmatic” in nature,including difficulties in performing tests assessing inferential reasoning, lexical-semantic processes, metaphor comprehension, and receptive prosody. Discourse ability seems to be \nparticularly susceptible to damage since 95% of patients obtained abnormal scores for Discourse Analysis. Language disorders assessed by the RHLB-PL were associated with a \nvariety of SPECT findings: language difficulties coexisted with perfusion defects within RH mostly involving the frontal cortex and thalamus.
Authors: Krzysztof Jodzio, Emilia Łojek, Karen Bryan
Language: English
Subfield: Cognitive Neuroscience
Field: Neuroscience
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2134204833