TY - INPR A1 - Filevich, Elisa A1 - Garcia Forlim, Caroline A1 - Fehrman, Carmen A1 - Forster, Carina A1 - Paulus, Markus A1 - Shing, Yee Lee A1 - Kühn, Simone T1 - I know that I don’t know: Structural and functional connectivity underlying meta-ignorance in pre-schoolers T2 - bioRxiv N2 - Metacognition plays a pivotal role in human development. The ability to realize that we do not know something, or meta-ignorance, emerges after approximately five years of age. We aimed at identifying the brain systems that underlie the developmental emergence of this ability in a preschool sample. Twenty-four children aged between five and six years answered questions under three conditions of a meta-ignorance task twice. In the critical partial knowledge condition, an experimenter first showed two toys to a child, then announced that she would place one of them in a box behind a screen, out of sight from the child. The experimenter then asked the child whether or not she knew which toy was in the box. Children who answered correctly both times to the metacognitive question in the partial knowledge condition (n=9) showed greater cortical thickness in a cluster within left medial orbitofrontal cortex than children who did not (n=15). Further, seed-based functional connectivity analyses of the brain during resting state revealed that this region is functionally connected to the medial orbitofrontal gyrus, posterior cingulate gyrus and precuneus, and mid- and inferior temporal gyri. This finding suggests that the default mode network, critically through its prefrontal regions, supports introspective processing. It leads to the emergence of metacognitive monitoring allowing children to explicitly report their own ignorance. Y1 - 2018 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/72504 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-725044 IS - 450346 ER -