RT Journal Article SR Electronic T1 Sex differences in brain correlates of STEM anxiety JF bioRxiv FD Cold Spring Harbor Laboratory SP 528075 DO 10.1101/528075 A1 Ariel A. Gonzalez A1 Katherine L. Bottenhorn A1 Jessica E. Bartley A1 Timothy Hayes A1 Michael C. Riedel A1 Taylor Salo A1 Elsa I. Bravo A1 Rosalie Odean A1 Alina Nazareth A1 Robert W. Laird A1 Matthew T. Sutherland A1 Eric Brewe A1 Shannon M. Pruden A1 Angela R. Laird YR 2019 UL http://biorxiv.org/content/early/2019/01/23/528075.abstract AB Anxiety is known to dysregulate the salience, default mode, and central executive networks of the human brain, yet this phenomenon has not been fully explored across the STEM learning experience, where anxiety can impact negatively academic performance. Here, we evaluated anxiety and large-scale brain connectivity in 101 undergraduate physics students. We found sex differences in STEM-related but not clinical anxiety, with longitudinal increases in science anxiety observed for both female and male students. Sex-specific impacts of STEM anxiety on brain connectivity emerged, with male students exhibiting distinct inter-network connectivity for STEM and clinical anxiety and female students demonstrating no significant within-sex correlations. Anxiety was negatively correlated with academic performance in sex-specific ways at both pre- and post-instruction. Moreover, math anxiety in male students mediated the relation between default mode-salience connectivity and course grade. Together, these results reveal complex sex differences in the neural mechanisms driving how anxiety impacts STEM learning.