Language-specific Vs. Domain-general Cognitive Control Systems in Patients with Left- and Right-hemisphere Lesion

摘要

Cognitive control is defined as the need to resolve interference among competing representations(January, Trueswell, & Thompson-Schill, 2009). The extent to which language conflict resolution isassisted by domain-general cognitive control systems apart from being subserved by domain-specificlinguistic control ones still remains unclear. The aim of this study was to evaluate possible deficits ininterference resolution processes by investigating cognitive and linguistic control in left hemisphere-(LH) and right hemisphere (RH)-lesion patients in a non-verbal and a verbal task already usedsuccessfully in the literature (Foucart, 2010; Treccani et al., 2009) to study linguistic and cognitivecontrol involving competition. We asked whether the two groups’ conflict resolution performance isconstrained by the type of the task and hemisphere localization of the lesion.