Semantic categorization in aphasic patients with impaired language comprehension: An event–related potentials study

• DOI: 10.22210/suvlin.2017.084.01
• Publication Date: 2017-12-15T10:05:33Z
• Authors: Karolina Lice; Marijan Palmović
• Keywords: Animacy

Many studies have tackled the question of organization our conceptual knowledge in brain, mainly conducting behaviour healthy and impaired individuals. Animacy inanimacy are among most frequently studied categories there three main theories or models that explain semantic processing animate inanimate objects: sensory/functional theory, domain– specific representation model connectionist structure. Although event–related potentials (ERP) technique has been used aphasia research many some variation categorization task individuals, to no were intended answer aboutsemantic aphasic population using ERP technique. The aim this study is determine differences objects between patients with language comprehension difficulties age, gender education matched controls Results show group a lower amplitude longer latency N400 LPC amplitude, fewer correct behavioural responses slower reaction time on than their controls. It can be concluded both phases lexico– processing, lexical retrieval recognition phase phase. absence window similar topographic distribution for groups consistent single system which claims same active matter category being processed. However, observed control lead conclusion harder categorize due smaller number common features needed processes.