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Related Concept Videos

Sensory Memory01:14

Sensory Memory

Sensory memory captures information from the environment in its original form for a very brief duration, just long enough to be exposed to visual, auditory, and other senses. This type of memory is detailed and rich but quickly lost unless certain strategies are employed to transfer it into short-term or long-term memory. Sensory information is continuously bombarding the human brain, yet only a small fraction is absorbed, as most of it does not significantly impact daily life. For instance,...
Working Memory01:24

Working Memory

Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.
Chunking and Rehearsal in Sensory Memory01:22

Chunking and Rehearsal in Sensory Memory

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 information more...
System of Memory01:23

System 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...
Long-Term Memory01:18

Long-Term Memory

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...
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...

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An Appetitive Spatial Working Memory Task for Mice in a Semi-Automated 8-Arm Radial Maze, Reducing Fearful Memory Association in the Maze
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Detailed sensory memory, sloppy working memory.

Ilja G Sligte1, Annelinde R E Vandenbroucke, H Steven Scholte

  • 1Cognitive Neuroscience Group, Department of Psychology, University of Amsterdam Amsterdam, Netherlands.

Frontiers in Psychology
|September 8, 2011
PubMed
Summary
This summary is machine-generated.

Visual short-term memory (VSTM) stages maintain varying object resolutions. Iconic memory and fragile VSTM store multiple high-resolution objects, while visual working memory stores only one.

Keywords:
fragile VSTMiconic memoryresolutionvisual detailworking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception

Background:

  • Visual short-term memory (VSTM) is crucial for temporary information retention.
  • VSTM comprises iconic memory, fragile VSTM, and visual working memory, each with distinct capacity and duration.
  • The representational resolution of these VSTM stages remains largely uninvestigated.

Purpose of the Study:

  • To investigate the resolution, or visual detail, maintained across the three stages of VSTM.
  • To determine if VSTM stages preserve high-resolution object representations.

Main Methods:

  • A change detection task was employed to assess VSTM capacity across stages.
  • An identification task followed change detection to evaluate the precision of stored representations.
  • Performance on both tasks was analyzed to infer representational resolution.

Main Results:

  • Participants maintained a high resolution for 6.1 objects in iconic memory, 4.6 in fragile VSTM, and 2.1 in visual working memory.
  • High-resolution identification was successful in 88% of iconic memory trials, 71% of fragile VSTM trials, and 53% of visual working memory trials.
  • Iconic memory and fragile VSTM support multiple high-resolution object representations, unlike visual working memory.

Conclusions:

  • Iconic memory and fragile VSTM retain detailed visual information for numerous objects.
  • Visual working memory appears to store fewer, but potentially more processed, high-resolution object representations.
  • This research clarifies the resolution capabilities of different VSTM stages, advancing our understanding of visual information processing.