Related Experiment Video
Updated: Aug 6, 2026
14:24
An Appetitive Spatial Working Memory Task for Mice in a Semi-Automated 8-Arm Radial Maze, Reducing Fearful Memory Association in the Maze
Published on: July 29, 2025
Beyond memory capacity: A probabilistic, dual store model of visuospatial working memory
Eduardo A Aponte1, Thanneer M Perumal1, Francesca Cormack2
1Roche Pharma Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel, Switzerland.
Plos Computational Biology
|July 20, 2026
Summary
This study introduces a new computational model for visuospatial working memory (VSWM) dynamics, revealing how information is stored and retrieved. The model utilizes smartphone data and shows potential for large-scale clinical research in conditions like autism and Alzheimer's disease.
Area of Science:
- Cognitive Science
- Computational Neuroscience
- Neuroimaging
Background:
- Understanding visuospatial working memory (VSWM) has advanced, yet sequential information processing remains unclear.
- Classical models require enhancement to explain information storage, retention, and removal in VSWM during sequential tasks.
Purpose of the Study:
- To present a novel computational model for VSWM dynamics, improving upon classical theories.
- To investigate information processing in sequential VSWM tasks using clinical trial data.
Main Methods:
- Developed a computational model for VSWM dynamics.
- Analyzed data from smartphone-based sequential VSWM tasks in neurotypicals and individuals with autism.
- Applied the model to data from a prodromal Alzheimer's disease clinical trial.
Main Results:
- Visual information in sequential tasks is stored in independent resource pools.
- Demonstrated distinct perfect and imperfect retrieval rates for visual information.
- Validated the model's applicability across different neurodevelopmental and neurodegenerative conditions.
Conclusions:
- Computational models combined with remote cognitive testing are suitable for large-scale clinical research.
- The proposed model offers a refined understanding of VSWM dynamics in sequential information processing.
- Findings have implications for studying cognitive function in clinical populations.
Related Concept Videos
01:24Working 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.
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...
01:19Understanding 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...
01:18Long-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...
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...
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...
01:14Sensory 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,...