Related Experiment Video
Updated: Oct 6, 2025
07:17
Aversive Associative Learning and Memory Formation by Pairing Two Chemicals in Caenorhabditis elegans
Published on: June 23, 2022
2.6K
Associative memory model with arbitrary Hebbian length
Zijian Jiang1, Jianwen Zhou2, Tianqi Hou3
1PMI Lab, School of Physics, Sun Yat-sen University, Guangzhou 510275, People's Republic of China.
Physical Review. E
|January 15, 2022
Summary
Learning in the brain
Area of Science:
- Neuroscience
- Computational Neuroscience
- Cognitive Science
Background:
- Synaptic plasticity underlies learning and memory.
- The brain converts temporal information into spatial representations.
- The role of synaptic integration windows in this process is not fully understood.
Purpose of the Study:
- To investigate how synaptic integration windows influence the conversion of temporal to spatial correlations.
- To explore the impact of Hebbian learning on associative memory models.
- To understand the role of anti-Hebbian learning in memory regulation.
Main Methods:
- Development of a generalized associative memory model for pattern sequences.
- Analytical solution of the model with arbitrary Hebbian lengths.
- Inclusion of an anti-Hebbian component to study memory landscape modification.
Main Results:
- A small Hebbian length significantly enhances correlation conversion.
- Stimulus-induced attractors become highly correlated with stored patterns.
- The anti-Hebbian component reshapes the memory energy landscape.
Conclusions:
- Synaptic Hebbian length is crucial for efficient correlation conversion in associative memory.
- The model provides insights into neural state transitions and memory regulation.
- Establishes a link between associative memory, Hebbian length, and brain's correlation conversion function.
More Related Videos
Related Concept Videos
01:26Higher Mental Functions of Brain: Learning and Memory
1.1K
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...
1.1K
01:25Long-term Potentiation
2.9K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
Hebbian LTP
LTP can occur when...
2.9K
01:23Storage
151
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...
151
01:18Long-Term Memory
294
Long-term memory is a relatively permanent type of memory, capable of storing vast amounts of information over extended periods. Its storage capacity is generally considered unlimited.
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
Long-term memory can be categorized into two primary types: explicit and implicit memory. Explicit memory, also known as declarative memory, involves the conscious recollection of information that we deliberately try to remember, recall, and articulate. This type of memory encompasses specific facts, events, and...
294
01:27Associative Learning
641
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...
Classical conditioning, also known...
641
01:21Forgetting
145
Forgetting is an intrinsic aspect of human memory, characterized by the gradual loss or inaccessibility of information over time. Hermann Ebbinghaus, a pioneering psychologist, extensively studied this phenomenon and formulated the forgetting curve. This curve illustrates that memory loss occurs rapidly immediately after learning and then decelerates over time. Several mechanisms contribute to forgetting, including encoding failure, storage decay, retrieval failure, and interference.
Encoding...
Encoding...
145