Arithmetic learning modifies the functional connectivity of the fronto-parietal network

Cortex. 2019 Feb:111:51-62. doi: 10.1016/j.cortex.2018.07.016. Epub 2018 Jul 31.

Abstract

How Resting-State Functional Connectivity (RSFC) is modified by learning is an important but rarely asked question. Here we used functional near-infrared spectroscopy (fNIRS) to measure changes in RSFC after learning novel subtraction and multiplication facts by forty-one young adult volunteers. We also measured changes in regional hemoglobin concentration. Fronto-parietal RSFC was modified by arithmetic learning and the fronto-parietal RSFC configuration before learning predicted the effectiveness of arithmetic learning. We also found a significant learning effect indicated by a monotonic decrease in reaction time and an increase in accuracy. Regional task-dependent oxy-hemoglobin concentration differentiated subtraction from multiplication learning supporting previous fMRI findings. These results suggest the sensitivity and importance of fronto-parietal connectivity to arithmetic learning.

Keywords: Arithmetic learning; Fronto-parietal network; Functional near-infrared spectroscopy; Resting-state functional connectivity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Brain Mapping / methods
  • Female
  • Frontal Lobe / physiology*
  • Functional Neuroimaging
  • Humans
  • Learning / physiology*
  • Male
  • Mathematics
  • Nerve Net / physiology*
  • Parietal Lobe / physiology*
  • Spectroscopy, Near-Infrared
  • Young Adult