The VKC Psychophysiology Lab supports researchers in investigating psychophysiological correlates of observed behavioral profiles in infants, children, and adults with typical and atypical development. Lab users receive access to electroencephalography (EEG), event-related potentials (ERP), and eye tracking (ET) techniques, which allow them to collect more extensive data than would be available using standard behavioral assessments alone, leading to new insights about the neurodevelopmental processes, brain-based markers of risk for adverse developmental outcomes, and additional objective measures of treatment effects.
Services can be tailored to specific project needs, including consulting on paradigm design, developing an experiment, collecting psychophysiological data, processing data, completing statistical analyses, interpreting data, and assisting in preparing final reports for publication. Additionally, lab personnel train investigators and project staff on practical aspects and theoretical issues related to psychophysiology methods relevant to specific projects. Services are provided on a fee-for-service basis ($50/hr); financial support may be available for small pilot studies to verify protocol feasibility and acquire pilot data for grant proposals.
Services range from adapting existing behavioral paradigms for use with EEG/ERP/ET, to implementation of established EEG/ERP paradigms, and development of novel paradigms. Core personnel can assist with stimulus development, e.g., consulting on stimulus characteristics needed for a specific paradigm such as length, intensity, appropriate control conditions, and experiment coding in E-prime.
A variety of data acquisition options are available, e.g., ongoing EEG (resting state and/or task-specific), EEG with event-specific markups for subsequent ERP derivation, and eye tracking. Individual projects may use any one or a combination of these techniques. Data can be collected at University or off-campus sites. Data collection can be performed entirely by Lab staff or by Lab staff and project-provided research assistants. Lab staff oversee all data collection to insure high-quality data.
Lab staff have expertise in working with participants of all ages with and without developmental disabilities, and have developed specific behavior management procedures, which in combination with the child-friendly design of equipment and testing rooms result in low attrition rate due to poor quality/insufficient amounts of EEG/ERP data.
Data Processing and Analysis
Unless requested otherwise by the investigator, all initial data processing prior to statistical analyses is performed by Core staff. This processing includes data quality review, artifact detection and removal or correction, electrode montage transformations, and export of the final product to text files.
Service options include assistance with final report preparation (e.g., posters, talks, manuscripts) and range from consultations on data interpretation to written method, analysis, and results sections.