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Related Concept Videos

Autobiographical Memory01:14

Autobiographical Memory

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Autobiographical memory is a unique type of episodic memory that involves recollecting personal life experiences. It allows individuals to remember significant events from their past, creating a narrative of their lives. One interesting phenomenon related to autobiographical memory is the reminiscence bump. This effect refers to the tendency of adults to recall more events from their second and third decades of life — typically between ages 10 to 30 — than from other periods. This...
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In statistics, two variables are said to be correlated if the values of one variable are associated with the other variable. Depending on the relationship between two variables, correlation can be of three types– positive correlation, negative correlation, and zero correlation.
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Related Experiment Video

Updated: Feb 8, 2026

Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection
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Increased fMRI activity correlations in autobiographical memory versus resting states.

Kristen N Warren1, Molly S Hermiller1, Aneesha S Nilakantan1

  • 1Department of Medical Social Sciences and Interdepartmental Neuroscience Program, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

Human Brain Mapping
|June 30, 2018
PubMed
Summary

Autobiographical memory retrieval involves a distinct brain network, separate from the resting state default-mode network (DMN). This network shows increased functional segregation during memory recall, highlighting distinct brain organization for autobiographical retrieval.

Keywords:
autobiographical memorybrain networksdefault-mode networkfMRI connectivityresting state

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Brain Imaging

Background:

  • Autobiographical memory retrieval engages a distributed brain network.
  • This network shares similarities with the default-mode network (DMN) observed during rest.
  • The precise functional organization of this network during retrieval remains to be fully elucidated.

Purpose of the Study:

  • To determine if activity correlations can identify the autobiographical memory network during retrieval.
  • To investigate the functional organization of brain networks during autobiographical memory retrieval compared to rest.
  • To explore the role of the DMN in autobiographical memory retrieval.

Main Methods:

  • Utilized global-correlativity analysis to compare brain activity during autobiographical retrieval and resting states.
  • Identified regions with differential activity correlations between the two states.
  • Analyzed functional segregation within and between the DMN and other brain regions.

Main Results:

  • A distributed network, including regions crucial for autobiographical memory, showed increased correlations during retrieval versus rest.
  • This network segregated into memory-related and cognitive control-related subnetworks, indicating enhanced functional segregation.
  • The DMN played a key role, exhibiting increased correlations with non-DMN regions and segregating into distinct subnetworks during retrieval.

Conclusions:

  • The autobiographical memory network can be reliably identified using activity correlations.
  • Autobiographical retrieval is associated with a distinct functional organization of brain networks compared to rest.
  • The DMN is dynamically reconfigured during autobiographical memory retrieval, contributing to network segregation.