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Related Concept Videos

Implicit Memories01:24

Implicit Memories

185
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...
185
Cognitive Learning01:21

Cognitive Learning

497
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
497
Purposive Learning01:22

Purposive Learning

196
E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
196
Higher Mental Functions of Brain: Learning and Memory01:26

Higher Mental Functions of Brain: Learning and Memory

950
Memory is one of the most vital higher mental functions of the brain. Memory is closely related to learning because it enables us to retain information and experiences from our past to use them in our present life. It also helps us to remember facts, events, and skills, such as riding a bike or swimming. There are two types of memory — declarative memory, which involves memorizing facts or events, and procedural memory, which enables us to remember how to do something like writing or...
950
Associative Learning01:27

Associative Learning

546
Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
Classical conditioning, also known...
546
Observational Learning01:12

Observational Learning

292
Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
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Related Experiment Video

Updated: Sep 2, 2025

Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo
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Selective engram coreactivation in idling brain inspires implicit learning.

Mohamed H Aly1,2,3,4, Kareem Abdou1,2,3,5, Reiko Okubo-Suzuki1,2,3

  • 1Research Center for Idling Brain Science, University of Toyama, Toyama 930-0194, Japan.

Proceedings of the National Academy of Sciences of the United States of America
|August 1, 2022
PubMed
Summary
This summary is machine-generated.

The sleeping brain integrates relevant memories by reactivating neural patterns, enabling implicit learning and enhanced cognitive processing. This process, crucial for assimilating new experiences, occurs during post-conditioning sleep.

Keywords:
engramidling brainimplicit learningknowledge assimilationsleep

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Memory Research

Background:

  • Advanced cognitive processing relies on integrating prior knowledge with new experiences.
  • The neural mechanisms governing memory assimilation, especially during spontaneous brain states like sleep, remain largely unknown.
  • The potential for uninstructed brains to exhibit creativity and knowledge assimilation after idling periods is an area of interest.

Purpose of the Study:

  • To investigate the neural dynamics of memory assimilation during sleep.
  • To determine if the sleeping brain can spontaneously link and integrate context-dependent memories based on learned similarities.
  • To explore the role of neural coreactivation during sleep in implicit cortical learning.

Main Methods:

  • Developed a paradigm linking context-dependent memories based on geometrical similarities in mice.
  • Utilized contextual fear conditioning and assessed fear transfer across contexts.
  • Recorded neural activity in the anterior cingulate cortex during post-conditioning sleep and subsequent testing.
  • Intervened with sleep coreactivations to observe effects on memory assimilation and consolidation.

Main Results:

  • Mice showed fear transfer to geometrically relevant contexts the day after conditioning, but not after a short interval.
  • Anterior cingulate cortex neurons representing relevant memories were coreactivated during post-conditioning sleep.
  • Disruption of sleep coreactivations hindered memory assimilation while leaving recent memory consolidation intact.
  • Selective integration of relevant memories occurred during subsequent testing.

Conclusions:

  • Memory assimilation during sleep is driven by coreactivation of relevant memory engrams in the anterior cingulate cortex.
  • This coreactivation during sleep facilitates implicit cortical learning and the integration of pertinent knowledge.
  • Sleep-triggered neural dynamics are essential for assimilating new experiences with prior knowledge, underpinning advanced cognition.