Related Experiment Video
Updated: Jan 23, 2026

A Semantic Priming Event-related Potential ERP Task to Study Lexico-semantic and Visuo-semantic Processing in Autism Spectrum Disorder
Published on: April 12, 2018
[Brain localization of semantic processing]
P Alvarez-Merino1, C Requena1, F Salto1
1Universidad de Leon, 24071 Leon, Espana.
Introduction:
Semantic content processing is associated with the potential N400, and the P600 is linked with the processing of syntactic and grammatical rules.
Aim:
To verify whether the semantic processing of complex visual stimuli such as repetition, identity, order and double incongruence is recursive or computable.
Subjects And Methods:
27 university students responded to an adapted N400 paradigm with five conditions, each with 80 tasks, while recording their brain activity with a 64-channel cap.
Results:
Two temporal windows of 400 to 550 ms and 550 to 800 ms were analyzed using an ANOVA contrast of the condition factor by regions of interest. In addition, the inverse solution of the windows was calculated by low resolution electromagnetic tomography (LORETA) to identify the main sources related to the electrical power. The significant differences (p <0.05) in the results for the N400 and P600 in frontal and centroparietal areas in the logical operators studied are corroborated.
Conclusion:
It is confirmed that the brain processing of complex images is modulated by repetition, identity and order, but not by negation. Therefore, it can be said that the semantic processing of complex images is semi-computable.
Related Concept Videos
Local Attraction
Processes of Self-Presentation
Information Processing Approach
Parallel Processing
Precipitation Processes
Isothermal Processes
An ideal gas can also undergo isothermal expansion or compression.
For example, consider 1 mole of an ideal gas inside an isolated cylinder at initial volume V...

