EEG/ERP data are acquired using 128-channel electrode arrays (Electrical Geodesics, Inc). The electrodes are encased in sponges soaked in salt water, can be applied in minutes, and are well-tolerated by individuals of all ages and ability levels. The lab is equipped to collect data across the life span, from premature infants to adults.
Basic processing of the EEG/ERP data is carried out by the lab staff. This may include filtering, segmentation, artifact rejection, averaging, re-referencing, and baseline correction. The processed files are provided to investigators in a text or Matlab format. For ERP data, automated peak scoring (amplitude, latency) option is also available.
Eye tracking data are acquired using Tobii systems (table-top or screen-mounted cameras, no head gear). Tobii Studio software is available for stimulus delivery and data scoring.
Data collection can be performed entirely by Lab staff or in collaboration with project-specific research personnel (training will be provided upon request). Lab staff oversee all data collection to insure high-quality data, and have developed specific participant behavior management procedures that minimize attrition rates due to poor quality/insufficient amounts of EEG/ERP/ET data.
In addition to the two testing rooms at the VKC lab, off-campus EEG/ERP/ET data collection can be performed using portable equipment.