Related Experiment Video
Updated: Jul 10, 2026
15:57
Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
Published on: May 4, 2011
Engram and behavior: How memory is stored in the brain.
Kisang Eom1, Donguk Kim1, Jung Ho Hyun2
1Department of Brain Sciences, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
Neurobiology of Learning and Memory
|March 12, 2025
Summary
Scientists study neural engrams, which are traces left by activated neural ensembles during information processing. Understanding these memory traces involves molecular changes and is crucial for neuroscience research.
Area of Science:
- Neuroscience
- Cognitive Science
- Molecular Biology
Background:
- Neural activity during information processing leaves physical traces on neurons.
- These traces involve changes in synaptic or intrinsic neuronal properties.
- Memory formation is linked to molecular alterations within neurons.
Purpose of the Study:
- To explore the concepts of neural ensembles and neural engrams.
- To review current research methodologies for studying neural traces.
- To identify future directions in the field.
Main Methods:
- Observational studies of neural activity.
- Analysis of molecular changes in neurons.
- Review of existing neuroscience literature and methodologies.
Main Results:
- Neural ensembles represent groups of activated neurons.
- Neural engrams are the physical traces of this neural activity.
- The study highlights the importance of monitoring collective neural activity.
Conclusions:
- The concepts of neural ensembles and engrams are foundational in neuroscience.
- Advancements in monitoring techniques are crucial for understanding memory.
- Future research should focus on refining methods to study neural engrams.
More Related Videos
Related Concept Videos
01:26Higher Mental Functions of Brain: Learning and Memory
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 playing an...
01:19Understanding Memory
Memory is the retention of information or experiences over time, facilitated through three main processes: encoding, storage, and retrieval. Encoding is the process of inputting information into the memory system. For instance, when listening to a lecture, watching a play, reading a book, or having a conversation, the brain is actively encoding information. This initial stage involves transforming sensory input into a form that can be processed and stored by the brain. Various factors, such as...
01:23System of Memory
Memory is categorized into three major systems: sensory memory, short-term memory (STM), and long-term memory (LTM). These systems differ in their capacity and the duration for which they can hold information. Sensory memory captures raw sensory input from the environment, holding it for just a few seconds or less. For example, on hearing a brief, loud sound, like a car horn honking, the sound seems to linger in the mind for a moment even after it stops. This is an instance of sensory memory...
01:19Encoding
Information enters the brain through encoding, which is the input of information into the memory system. Once sensory information is received from the environment, the brain labels or codes it. The information is then organized with similar information and connected to existing concepts. Encoding occurs through automatic processing and effortful processing.
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
Automatic processing involves the encoding of details like time, space, frequency, and the meaning of words, usually done without conscious...
01:23Storage
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...
01:23Role of Neurotransmitters in Memory
Neurotransmitters are integral to the brain's communication system, enabling neurons to transmit signals across synapses. This chemical exchange underpins various cognitive functions, including memory processes. The role of neurotransmitters in memory is multifaceted, influencing the encoding, consolidation, and retrieval of memories through their action on different neural circuits.
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...
Glutamate and Synaptic Plasticity
Glutamate, the brain's main excitatory neurotransmitter, is critical for...