A person can be appraised as an individual or as a member of a social group. In the present study we tested whether the knowledge about social groups is represented independently of the living and non-living things. Patients with frontal and temporal lobe tumors involving either the left or the right hemisphere performed three tasks - picture naming, word-to-picture matching and picture sorting - tapping the lexical semantic knowledge of living things, non-living things and social groups. Both behavioral and voxel-based lesion-symptom mapping (VLSM) analyses suggested that social groups might be represented differently from other categories. VLSM analysis carried out on naming errors revealed that left-lateralized lesions in the inferior frontal gyrus, amygdala, insula and basal ganglia were associated with the lexical-semantic processing of social groups. These findings indicate that the social group representation may rely on areas associated with affective processing.
|Titolo:||The neural network associated with lexical-semantic knowledge about social groups.|
|Autori:||Piretti, L.; Carnaghi, A.; Campanella, F.; Ambron, E.; Skrap, M.; Rumiati, R.|
|Data di pubblicazione:||2015|
|Digital Object Identifier (DOI):||10.1016/j.cortex.2015.06.024|
|Appare nelle tipologie:||1.1 Journal article|