Author/Authors :
Khatoonabadi، Ahmad Reza نويسنده School of Rehabilitation.Tehran University of Medical Sciences (TUMS). , , Sadeh، Sadra نويسنده University of Freiburg, Freiburg im Breisgau,
Germany , , Grippo، Antonello نويسنده Neuroscience Department, Careggi University Hospital,
Florence, Italy , , Mahmoodi-Bakhtiari، Behrooz نويسنده Department of Performing Arts, School of Fine Arts, Tehran University, Tehran, Iran. Mahmoodi-Bakhtiari, Behrooz , Saadati، Mahsa نويسنده National Population Studies and Comprehensive Management
Institute, Tehran, IR Iran ,
Abstract :
Categorization is one of the basic cognitive skills in human beings. In fact, it can organize knowledge and arrange human behavior. The present study deals with the organization of conceptual knowledge by investigating and studying the ways in which different semantic domains are categorized. In the present study, event-related potentials (ERPs) have been recorded from 12 healthy right-handed male university students, who performed a semantic judgment task using 100 animal and tool words. The interesting results of this study show a significant difference between both conditions in all time-windows, with more negativity for the tool category. Also, more negativity for both conditions is noticed when moving from anterior to posterior regions. These results are in accordance with findings of previous studies in this field and may be explained on the basis of the feature-based account of semantic knowledge organization
