Cingulate-Hippocampus Coherence and Trajectory Coding in a Sequential Choice Task
Name
Wilson_Cingulate-Hippocampus.pdf
Size
3.05 MB
Format
Adobe PDF
Checksum (MD5)
d125fbfa621050e834fc70fb1971c022
Author(s)
Remondes, Armando Miguel
Wilson, Matthew A.
Date Issued
November 2013
Journal
Neuron
Publisher
Elsevier
Citation
Remondes, Miguel, and Matthew A. Wilson. “Cingulate-Hippocampus Coherence and Trajectory Coding in a Sequential Choice Task.” Neuron 80, no. 5 (December 2013): 1277–1289.
Version
Author's final manuscript
Abstract
Interactions between cortex and hippocampus are believed to play a role in the acquisition and maintenance of memories. Distinct types of coordinated oscillatory activity, namely at theta frequency, are hypothesized to regulate information processing in these structures. We investigated how information processing in cingulate cortex and hippocampus relates to cingulate-hippocampus coordination in a behavioral task in which rats choose from four possible trajectories according to a sequence. We found that the accuracy with which cingulate and hippocampal populations encode individual trajectories changes with the pattern of cingulate-hippocampal theta coherence over the course of a trial. Initial theta coherence at ∼8 Hz during trial onsets lowers by ∼1 Hz as animals enter decision stages. At these stages, hippocampus precedes cingulate in processing increased amounts of task-relevant information. We hypothesize that lower theta frequency coordinates the integration of hippocampal contextual information by cingulate neuronal populations, to inform choices in a task-phase-dependent manner.
MIT Department
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Picower Institute for Learning and Memory
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.neuron.2013.08.037
