New preprint 📚🧠🧮🧒:
Oscillatory EEG Patterns of Arithmetic Problem Solving in Fourth Graders
We already have a pretty good idea how arithmetic problem solving is reflected in oscillatory EEG activity in adults:
Simple problems are usually solved by fact retrieval. In that case, we observe theta ERS (power increase). Hard problems need to be calculated, which is reflected in alpha ERD (power decrease).
We don't know how these patterns evolve during development. As a first step, we studied 9-10 year-old children solving multiplications and subtractions.
Not entirely surprisingly, we found strategy-related ERD/ERS patterns that are similar to those found in adults.
In addition, we also observed differences between operations only within retrieved problems: retrieved multiplications were associated with higher ERS than retrieved subtractions. Importantly, response times and accuracies did not differ.
How can these differences be explained? One possibility is that we observed operation-specific fact retrieval processes (multiplication facts are stored and retrieved differently than subtraction facts).
Another possibility is that children also calculated some subtractions even though they reported them as fact retrieval.
All data and scripts will be open access at OSF soon. We used #python and #rstats - both languages are really great together!
#eeg #neuroscience #python @mne_news #rstats @nikokoren @judith_s_ @Stephanvog @Bert_De_Smedt @MosbacherJ

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