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Related Experiment Video

Updated: May 25, 2026

Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice

Longitudinal Two-Photon Imaging of Dorsal Hippocampal CA1 in Live Mice

Published on: June 19, 2019

The hippocampus and imagining the future: where do we stand?

Donna Rose Addis¹, Daniel L Schacter

¹Australian Research Council Centre of Excellence in Cognition and its Disorders Sydney, NSW, Australia.

Frontiers in Human Neuroscience

|February 1, 2012

Summary

The hippocampus aids future imagination by recombining details, but its necessity for future simulation is debated. Different simulation components may be affected differently by hippocampal damage.

Keywords:

autobiographical episodic future hippocampus imagination simulation

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Area of Science:

Cognitive Neuroscience
Neurobiology

Background:

Neuroimaging shows hippocampal engagement during future imagination, sometimes exceeding past memory recall.
This activation may involve recombining details and memory encoding for future scenarios.

Purpose of the Study:

To review neuroimaging and patient studies on the hippocampus and future simulation.
To reconcile conflicting findings regarding the hippocampus's necessity for future simulation.
To propose a framework of simulation components (accessing, recombining, encoding) to explain discrepancies.

Main Methods:

Review of existing neuroimaging literature.
Analysis of patient studies with memory loss and hippocampal damage.
Application of a new framework detailing simulation component processes.

Main Results:

Inconsistent findings exist regarding the hippocampus's role in future simulation in patient populations.
Neuroimaging suggests significant hippocampal involvement in future simulation processes.
A framework of simulation components may explain why patient outcomes differ.

Conclusions:

The hippocampus's necessity for future simulation remains an open question.
Different component processes of future simulation (accessing, recombining, encoding) might be differentially impacted by hippocampal damage.
Reconciling neuroimaging and patient data requires considering these distinct simulation subprocesses.