Related Experiment Video
Updated: Oct 14, 2025
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
842
Motor Memory Consolidation after Augmented Variability Depends on the Space in which Variability is Introduced
Mattia Pagano1, Gaia Stochino1, Maura Casadio1
1Department of Informatics, Bioengineering, Robotics and Systems Engineering, University of Genova, Genova, Italy.
Neuroscience
|November 10, 2021
Summary
Augmenting movement variability in the task space enhances motor memory consolidation more than in the null space for redundant tasks. This suggests variability
Area of Science:
- Motor learning and memory
- Robotics and human-computer interaction
- Neuroscience of movement
Background:
- Motor memories require consolidation to become stable.
- Movement variability plays a role in motor memory consolidation.
- The role of variability in redundant tasks, with orthogonal task and null spaces, is unclear.
Purpose of the Study:
- To investigate the differential effects of augmenting variability in the task space versus the null space on motor memory consolidation.
- To understand how variability interacts with existing coordination strategies during motor learning.
Main Methods:
- Participants learned a bimanual shuffleboard task.
- Haptic perturbations were used to introduce variability in either the task space or null space after initial learning.
- Motor memory consolidation was assessed the following day.
Main Results:
- Augmenting variability in the task space led to significantly better motor memory consolidation compared to the null space.
- Task space variability did not impair consolidation compared to a no-variability control group.
- The benefit of task space variability was attributed to its minimal disruption of pre-existing coordination strategies.
Conclusions:
- The impact of movement variability on motor memory consolidation is dependent on the specific subspace (task vs. null) and its interaction with established coordination patterns.
- Targeting variability in the task space may be a more effective strategy for promoting robust motor memory consolidation in redundant tasks.
Related Concept Videos
01:11Variability: Analysis
232
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
The range is a simple measure of variability, indicating the difference between the highest and...
232
01:19Understanding Memory
689
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...
689
01:22Chunking and Rehearsal in Sensory Memory
331
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...
331
01:24Implicit Memories
222
Implicit memories, also known as non-declarative memories, are long-term memories that function outside of conscious awareness. These memories influence behavior and skills without explicit knowledge. This type of memory is evident in tasks like playing tennis, snowboarding, and texting. Implicit memory has three subsystems: procedural memory, conditioning, and priming. This type of memory is essential in various activities, from everyday tasks to specialized skills.
One key aspect of implicit...
One key aspect of implicit...
222
01:26Higher Mental Functions of Brain: Learning and Memory
1.2K
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...
1.2K
01:18Long-Term Memory
305
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...
305