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Inhibitory control (IC) is a core executive function that enables humans to resist habits, temptations, or distractions. IC efficiency in childhood is a strong predictor of academic and professional success later in life. Based on analysis of the sulcal pattern, a qualitative feature of cortex anatomy determined during fetal life and stable during development, we searched for evidence that interindividual differences in IC partly trace back to prenatal processes. Using anatomical magnetic resonance imaging (MRI), we analyzed the sulcal pattern of two key regions of the IC neural network, the dorsal anterior cingulate cortex (ACC) and the inferior frontal cortex (IFC), which limits the inferior frontal gyrus. We found that the sulcal pattern asymmetry of both the ACC and IFC contributes to IC (Stroop score) in children and adults: participants with asymmetrical ACC or IFC sulcal patterns had better IC efficiency than participants with symmetrical ACC or IFC sulcal patterns. Such additive effects of IFC and ACC sulcal patterns on IC efficiency suggest that distinct early neurodevelopmental mechanisms targeting different brain regions likely contribute to IC efficiency. This view shares some analogies with the “common variant–small effect” model in genetics, which states that frequent genetic polymorphisms have small effects but collectively account for a large portion of the variance. Similarly, each sulcal polymorphism has a small but additive effect: IFC and ACC sulcal patterns, respectively, explained 3% and 14% of the variance of the Stroop interference scores.

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Functional neuroimaging studies have revealed that, compared with novices, science experts show increased activation in dorsolateral and ventrolateral prefrontal brain areas associated with inhibitory control mechanisms when providing scientifically valid responses in tasks related to electricity and mechanics. However, no study thus far has explored the relationship between activation of the key brain regions involved in inhibitory control mechanisms, namely the ventrolateral prefrontal cortex (VLPC) and dorsolateral prefrontal cortex (DLPC), and individual differences in conceptual science competence, while controlling for scientific training. In the present study, 24 secondary school students (11 female participants, 13 male participants) were selected from a larger pool based on their performance on a conceptual science questionnaire and were divided into groups with low and high conceptual science competence. In an fMRI block design, participants had to verify the correctness (true or false) of congruent and incongruent statements. In congruent statements, both spontaneous and scientific conceptions about given natural phenomena lead to a scientifically appropriate judgment. However, in incongruent statements, commonly held spontaneous conceptions about natural phenomena lead to a scientifically inappropriate judgment. The interaction effect reveals that students with higher conceptual science competence display stronger activation of the left VLPC and DLPC in incongruent trials than in congruent trials. These findings show that activation of the VLPC and DLPC when reasoning in incongruent situations underlies individual differences in conceptual science competence, and suggests stronger recruitment of inhibitory control mechanisms in more competent individuals. K E Y W O R D SfMRI, individual differences, inhibitory control, prefrontal cortex, science competence, student conceptions | INTRODUC TI ONUnderstanding fundamental scientific concepts is a prerequisite for higher order scientific reasoning and successful problem-solving, and is essential to becoming a knowledgeable individual who can make informed decisions and fully participate in society. However, learning scientific concepts can be challenging. Results of the TIMSS 2015 (Trends in International Mathematics and Science Study) reveal

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Learning counterintuitive scientific concepts can be difficult for students because they often have misconceptions about natural phenomena that lead them to commit errors. Recent studies showed that students with advanced scientific training recruit brain regions associated with inhibitory control and memory retrieval to avoid committing errors for questions related to counterintuitive scientific concepts. However, the brain mechanisms used by novices in sciences to overcome errors are still unknown. In this study, novices in electricity and mechanics answered a scientific task in an functional magnetic resonance imaging (fMRI) scanner before and after having corrected their errors. Results show that rostrofrontal and parietal brain areas were more activated after correcting errors than before. These findings suggest that error-correction mechanisms of novices, induced by presenting to learners the correct answers at the very beginning of their learning process, are associated with memory retrieval but not inhibitory control.International surveys, such as the Program for International Student Assessment (PISA) and the Trends in International Mathematics and Science Study (TIMSS), regularly show