An existing psycholinguistics experiment is extended with EEG measurement to analyze the spatiotemporal distribution of activities during a bilingual lexical access task. A low-cost custom trigger hardware was developed to provide event timestamps of the experiment stimulus and response to the EEG apparatus. The experiment was repeated on a subject group of 20 students, and our processing software could extract the trigger information and reaction times from the EEG data in a matter of minutes. The results are more accurate than the ones provided by software-based trigger generation systems and immediately allow us to combine EEG processing and visualization with reaction time data. |
