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Related Concept Videos

Autobiographical Memory01:14

Autobiographical Memory

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 period is...
Traumatic Memory01:20

Traumatic Memory

Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual remembers mundane...
Implicit Memories01:24

Implicit Memories

Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
Storage01:23

Storage

A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze each...
Eyewitness Memory01:22

Eyewitness Memory

Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function like a...

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Related Experiment Video

Updated: Jun 23, 2026

Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection
11:30

Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection

Published on: August 26, 2011

Remoteness sensitive theta network dynamics during early autobiographical memory access.

María Carla Navas1, Ignacio Ferrelli1, María Eugenia Pedreira1

  • 1Consejo Nacional de Investigaciones Científicas y Técnicas - Universidad de Buenos Aires, Instituto de Fisiología, Biología Molecular y Neurociencia (IFIBYNE), Buenos Aires, Argentina.

Scientific Reports
|June 21, 2026
PubMed
Summary
This summary is machine-generated.

Retrieving remote autobiographical memories (AM) shows distinct brain activity. Remote AM access involves increased theta power and denser neural connectivity compared to recent memories.

Keywords:
Autobiographical memoryEEGGranger causalityTheta band

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Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
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Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG

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Related Experiment Videos

Last Updated: Jun 23, 2026

Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection
11:30

Brain Imaging Investigation of the Neural Correlates of Emotional Autobiographical Recollection

Published on: August 26, 2011

Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
09:35

Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG

Published on: March 10, 2017

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Memory Research

Background:

  • Autobiographical memory (AM) is vital for social cognition and future planning.
  • Memory age influences retrieval dynamics, offering insights into neural processing.
  • Understanding neural signatures of memory access is key to cognitive science.

Purpose of the Study:

  • To investigate neural signatures sensitive to memory remoteness during autobiographical memory (AM) retrieval.
  • To analyze the early access phase (first 1500 ms) of AM retrieval for age-related neural differences.
  • To identify specific brain activity patterns associated with recalling recent versus remote memories.

Main Methods:

  • Electroencephalography (EEG) recorded brain activity in 41 participants during an AM retrieval task.
  • Spectral power and time-resolved Granger Causality (GC) were analyzed.
  • Focus on the initial 1500 ms post-retrieval onset.

Main Results:

  • Remote AM retrieval showed increased midline fronto-central theta power (6.5-8 Hz) around 900 ms compared to recent memories.
  • Granger Causality (GC) revealed an anterior-to-posterior information flow for both memory types.
  • Remote memories exhibited denser, more efficient theta-band connectivity (800-1100 ms).

Conclusions:

  • Memory remoteness significantly impacts the early stages of autobiographical memory access.
  • Theta power and directed theta-band interactions serve as temporal markers for AM retrieval mechanisms.
  • These findings elucidate the neural dynamics differentiating the retrieval of memories based on their age.