The role of the right hemisphere in semantic control: A case-series comparison of right and left hemisphere stroke.

ABSTRACT: Semantic control processes guide conceptual retrieval so that we are able to focus on non-dominant associations and features when these are required for the task or context, yet the neural basis of semantic control is not fully understood. Neuroimaging studies have emphasised the role of left inferior frontal gyrus (IFG) in controlled retrieval, while neuropsychological investigations of semantic control deficits have almost exclusively focussed on patients with left-sided damage (e.g., patients with semantic aphasia, SA). Nevertheless, activation in fMRI during demanding semantic tasks typically extends to right IFG. To investigate the role of the right hemisphere (RH) in semantic control, we compared nine RH stroke patients with 21 left-hemisphere SA patients, 11 mild SA cases and 12 hea

SUBMITTER: Thompson HE 

PROVIDER: S-EPMC4863527 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature