Why do people differ in abilities, such as (psychometric) intelligence? This research area examines whether and to what extent people with higher psychometric intelligence process information differently than people with lower abilities. We are interested in whether differences in the speed of information processing, memory functions, or temporal resolution with which information is processed contribute to differences in psychometric intelligence. To investigate such differences, we use behavioral measures (e.g., reaction times, error rates, and discrimination thresholds in elementary cognitive tasks) as well as psychophysiological measures (focus on EEG-based event-related potentials and frequency bands). In addition, we use confirmatory factor analysis approach to depict cognitive processes as specifically as possible (if this is possible at all) to separate them from each other in such a way that their (unique and common) interplay with psychometric intelligence can be meaningfully investigated.
Current Studies on this Research Area:
Gubler, D. A., Rominger, C., Jakob, D., & Troche, S. J. (2023). How does experimentally induced pain affect creative ideation and underlying attention-related psychophysiological mechanisms?. Neuropsychologia, 183, 108514. https://doi.org/10.1016/j.neuropsychologia.2023.108514
Hilger, K., Spinath, F. M., Troche, S., & Schubert, A. L. (2022). The biological basis of intelligence: Benchmark findings. Intelligence, 93, 101665. https://doi.org/10.1016/j.intell.2022.1016
Makowski, L. M., & Troche, S. J. (2024). Can the resting state peak alpha frequency explain the relationship between temporal resolution power and psychometric intelligence? Behavioral Neuroscience, 138(1), 15–29. https://doi.org/10.1037/bne0000571
Troche, S. J., Makowski, L. M., Pahud, O., & Rammsayer, T. H. (2024). Working memory updating as a mediator of the relation between temporal resolution power and psychometric intelligence. Personality and Individual Differences, 220, 112479. https://doi.org/10.1016/j.paid.2023.112479
Troche, S. J., von Gugelberg, H. M., Pahud, O., & Rammsayer, T. H. (2021). Do executive attentional processes uniquely or commonly explain psychometric g and correlations in the positive manifold? A structural equation modeling and network-analysis approach to investigate the Process Overlap Theory. Journal of Intelligence, 9(3), 37. https://doi.org/10.3390/jintelligence9030037
