Short- and long-term effects of a novel on connectivity in the brain

Brain Connect. 2013;3(6):590-600. doi: 10.1089/brain.2013.0166. Epub 2013 Oct 9.

Abstract

We sought to determine whether reading a novel causes measurable changes in resting-state connectivity of the brain and how long these changes persist. Incorporating a within-subjects design, participants received resting-state functional magnetic resonance imaging scans on 19 consecutive days. First, baseline resting state data for a "washin" period were taken for each participant for 5 days. For the next 9 days, participants read 1/9th of a novel during the evening and resting-state data were taken the next morning. Finally, resting-state data for a "wash-out" period were taken for 5 days after the conclusion of the novel. On the days after the reading, significant increases in connectivity were centered on hubs in the left angular/supramarginal gyri and right posterior temporal gyri. These hubs corresponded to regions previously associated with perspective taking and story comprehension, and the changes exhibited a timecourse that decayed rapidly after the completion of the novel. Long-term changes in connectivity, which persisted for several days after the reading, were observed in bilateral somatosensory cortex, suggesting a potential mechanism for "embodied semantics."

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Brain Mapping / methods*
  • Cerebrum / physiology*
  • Cognition / physiology*
  • Female
  • Humans
  • Image Processing, Computer-Assisted
  • Literature, Modern
  • Magnetic Resonance Imaging / methods
  • Male
  • Nerve Net / physiology*
  • Pilot Projects
  • Reading*
  • Young Adult