Journal
JOURNAL OF NEUROSCIENCE
Volume 35, Issue 40, Pages 13577-13586Publisher
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.0687-15.2015
Keywords
attention; episodic memory; phase synchrony
Categories
Funding
- Intramural Research Program of the National Institute for Neurological Disorders and Stroke
- National Institutes of Health [MH055687, MH061975, NS067316, MH017168]
Ask authors/readers for more resources
Neural activity preceding an event can influence subsequent memory formation, yet the precise cortical dynamics underlying this activity and the associated cognitive states remain unknown. We investigate these questions here by examining intracranial EEG recordings as 28 participants with electrodes placed for seizure monitoring participated in a verbal paired-associates memory task. We found that, preceding successfully remembered word pairs, an orientation cue triggered a low-frequency 2-4 Hz phase reset in the right temporoparietal junction with concurrent increases in low-frequency power across cortical regions that included the prefrontal cortex and left temporal lobe. Regions that exhibited a significant increase in 2-4 Hz power were functionally bound together through progressive low-frequency 2-4 Hz phase synchrony. Our data suggest that the interaction between power and phase synchrony reflects the engagement of attentional networks that in large part determine the extent to which memories are successfully encoded.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available