Check out the new paper by Tânia Fernandes and collaborators in which they traced the developmental trajectory of mirrored-letter and rotated-letter priming effects in visual word recognition. E.g., ibea and ipea as primes of IDEA.
>> Fernandes, T., Velasco, S., & Leite, I. (2023). Letters away from the looking glass: Developmental trajectory of mirrored and rotated letter processing within words. Developmental Science, e13447. https://doi.org/10.1111/desc.13447