Academic Journal
Neurodevelopmental correlates of the emerging adult self
| Title: | Neurodevelopmental correlates of the emerging adult self |
|---|---|
| Authors: | Christopher G. Davey, Alex Fornito, Jesus Pujol, Michael Breakspear, Lianne Schmaal, Ben J. Harrison |
| Source: | Developmental Cognitive Neuroscience, Vol 36, Iss , Pp - (2019) |
| Publisher Information: | Elsevier, 2019. |
| Publication Year: | 2019 |
| Collection: | LCC:Neurophysiology and neuropsychology |
| Subject Terms: | Neurophysiology and neuropsychology, QP351-495 |
| More Details: | The self-concept – the set of beliefs that a person has about themselves – shows significant development from adolescence to early adulthood, in parallel with brain development over the same period. We sought to investigate how age-related changes in self-appraisal processes corresponded with brain network segregation and integration in healthy adolescents and young adults. We scanned 88 participants (46 female), aged from 15 to 25 years, as they performed a self-appraisal task. We first examined their patterns of activation to self-appraisal, and replicated prior reports of reduced dorsomedial prefrontal cortex activation with older age, with similar reductions in precuneus, right anterior insula/operculum, and a region extending from thalamus to striatum. We used independent component analysis to identify distinct anterior and posterior components of the default mode network (DMN), which were associated with the self-appraisal and rest-fixation parts of the task, respectively. Increasing age was associated with reduced functional connectivity between the two components. Finally, analyses of task-evoked interactions between pairs of nodes within the DMN identified a subnetwork that demonstrated reduced connectivity with increasing age. Decreased network integration within the DMN appears to be an important higher-order maturational process supporting the emerging adult self. Keywords: Adolescent development, Connectivity, Default mode network, Functional MRI, Self |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1878-9293 25667440 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S1878929318301609; https://doaj.org/toc/1878-9293 |
| DOI: | 10.1016/j.dcn.2019.100626 |
| Access URL: | https://doaj.org/article/54755c2566744031ba313ad80159c2a7 |
| Accession Number: | edsdoj.54755c2566744031ba313ad80159c2a7 |
| Database: | Directory of Open Access Journals |
| ISSN: | 18789293 25667440 |
|---|---|
| DOI: | 10.1016/j.dcn.2019.100626 |
| Published in: | Developmental Cognitive Neuroscience |
| Language: | English |