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Related Concept Videos

Storage01:23

Storage

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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...
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System of Memory01:23

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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...
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Long-Term Memory01:18

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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...
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Encoding01:19

Encoding

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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.
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Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

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Improving short-term memory can be achieved through techniques like chunking and rehearsal. Chunking involves organizing information into larger, more manageable units. This technique is particularly useful for information that exceeds the typical memory span of between five and nine items. For instance, logging into an online account with a password like "ta89vq0179gz" involves grouping letters and numbers into three chunks—ta89, vq01, and 79gz. It makes large amounts of...
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Understanding Memory01:19

Understanding Memory

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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...
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Updated: Sep 30, 2025

Quasi-light Storage for Optical Data Packets
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A Hierarchically Encoded Data Storage Device with Controlled Transiency.

Shuai Wei1,2, Jianjuan Jiang1, Long Sun1

  • 1State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China.

Advanced Materials (Deerfield Beach, Fla.)
|March 16, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a silk-based device for secure data storage, integrating electronic, photonic, and optical information. This hierarchically encoded data storage device (HEDSD) offers controlled degradation for enhanced security and capacity.

Keywords:
data storage deviceshierarchically encodingsilktransient electronics

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Area of Science:

  • Materials Science
  • Electronics Engineering
  • Information Security

Background:

  • The increasing demand for high-security and high-capacity data storage necessitates novel solutions.
  • Physically transient electronics offer a pathway for secure data storage through controlled degradation.
  • Silk, a natural protein, possesses advantageous properties for electronic device fabrication and controlled biodegradability.

Purpose of the Study:

  • To develop a silk-based hierarchically encoded data storage device (HEDSD) with controlled transiency.
  • To integrate multiple data storage modalities (electronic, photonic, optical) within a single device.
  • To achieve multilevel information encryption and decryption for enhanced data security.

Main Methods:

  • Fabrication of a silk-based device integrating resistive switching memory (ReRAM), a terahertz metamaterial, and a diffractive optical element.
  • Utilizing shared materials and structures across different data storage units for increased complexity and capacity.
  • Controlling the degradation rate of storage units to achieve various degradation modes and multilevel information encryption/decryption.

Main Results:

  • Demonstrated simultaneous storage of electronic, photonic, and optical information within the HEDSD.
  • Achieved multilevel information storage and retrieval through diverse encoding mechanisms.
  • Successfully implemented controlled degradation and multilevel information encryption/decryption functionalities.

Conclusions:

  • The silk-based HEDSD offers a promising platform for secure, high-capacity data storage by combining multiple information modalities.
  • Controlled transiency and multilevel encryption capabilities make it suitable for future secure memory systems and implantable devices.
  • Silk's unique properties enable the development of advanced, biodegradable electronic devices for data security applications.