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Related Concept Videos

Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
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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,...
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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 information more...
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Higher Mental Functions of Brain: Learning and Memory01:26

Higher 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...
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Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
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Internal attention to features in visual short-term memory guides object learning.

Judith E Fan1, Nicholas B Turk-Browne

  • 1Green Hall, Department of Psychology, Princeton University, Princeton, NJ 08540, United States.

Cognition
|August 20, 2013
PubMed
Summary
This summary is machine-generated.

Reporting object features from visual short-term memory (VSTM) biases later visual long-term memory (VLTM). This feature-competition effect enhances attended features while suppressing unattended ones, shaping memory based on reporting goals.

Keywords:
Features and objectsMemory encodingMemory retrievalSelective attentionVisual short-term memoryVisual working memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Visual Perception and Memory

Background:

  • External attention to objects influences perception and memory.
  • The impact of internal attention, specifically reporting features from memory, on visual learning remains less understood.
  • Investigating how recalling object details affects long-term memory formation is crucial for understanding mnemonic processes.

Purpose of the Study:

  • To determine the consequences of reporting object features from visual short-term memory (VSTM) on visual long-term memory (VLTM).
  • To test three hypotheses: practice-benefit, object-based enhancement, or feature-competition.
  • To elucidate the role of selective internal attention in shaping object representations in memory.

Main Methods:

  • Participants viewed abstract shapes with specific features (color, orientation, location).
  • They reported one feature from VSTM after initial viewing.
  • Later, participants reported features of the same objects from VLTM, with analyses comparing feature recall based on prior reporting.

Main Results:

  • Results supported the feature-competition hypothesis: reporting a feature from VSTM enhanced its VLTM representation while suppressing unreported features.
  • This effect was not due to sensory exposure or response learning.
  • The feature-competition bias intensified when multiple features were reported.

Conclusions:

  • Selective internal attention, through feature reporting, induces competitive dynamics among object features during visual learning.
  • This process flexibly tunes object representations in VLTM to align with mnemonic goals.
  • Internal attention acts as a mechanism to prioritize and consolidate specific information in long-term memory.