Related Experiment Video
Updated: Jan 1, 2026
05:58
Using Rapid Serial Visual Presentation to Measure Set-Specific Capture, a Consequence of Distraction While Multitasking
Published on: August 29, 2018
9.2K
Memory for where, but not what, is used during visual search
Melissa R Beck1, Matthew S Peterson, Miroslava Vomela
1Department of Psychology, George Mason University, Fairfax, VA 22030, USA. mbeck1@gmu.edu
Summary
Memory guides visual search by prioritizing new items over old ones. This study reveals that search is biased by item location, not identity, suggesting location-based memory representations are key.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- The role of memory in visual search is debated, though a limited-capacity model is widely accepted.
- Previous research indicates visual search is biased away from previously examined (old) items and towards unexamined (new) items.
Purpose of the Study:
- To investigate the nature of memory representations guiding visual search.
- To determine whether search biases rely on item identity or item location.
Main Methods:
- Replication of findings demonstrating a bias away from old items and towards new items in visual search.
- Experimental manipulation of item features (identity) and item locations during search to assess disruption of search biases.
Main Results:
- Changing an item's individuating feature did not alter the typical search bias.
- Altering an item's location during the search process significantly disrupted the normal search biases.
Conclusions:
- Memory representations guiding visual search are primarily based on item location.
- This suggests a location-based, rather than identity-based, memory mechanism underlies visual search efficiency.
Related Concept Videos
01:14Sensory Memory
543
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,...
543
01:12Visual Agnosia
817
Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round...
817
01:23Storage
300
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...
300
01:22Eyewitness Memory
388
Eyewitness memory refers to the recollection of events by someone who has directly witnessed them, often serving as critical evidence in legal settings. This type of memory is commonly used in criminal cases where a witness describes details like a suspect's appearance, clothing, or behavior during a crime. However, despite its perceived reliability, eyewitness memory is prone to significant errors.
One such error is memory distortion, which occurs because human memory does not function...
One such error is memory distortion, which occurs because human memory does not function...
388
01:23System of Memory
7.1K
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...
7.1K
01:23Mnemonic Devices
328
Mnemonic devices are cognitive tools that facilitate memory retention by linking new information to familiar patterns or organizational strategies. These techniques are beneficial for remembering complex or lengthy sets of information by simplifying and structuring them in easily retrievable ways.
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
Acronyms
Acronyms are created by using the initial letters of a series of words to form a new word or phrase. This approach condenses complex information into a single, memorable entity. For example,...
328