Related Experiment Video
Updated: May 2, 2026
05:12
Using Virtual Reality to Transfer Motor Skill Knowledge from One Hand to Another
Published on: September 18, 2017
551.2K
Perceptual learning and the visual control of braking
1Department of Cognitive Science, Rensselaer Polytechnic Institute, Troy, New York 12180, USA. fajenb@rpi.edu
Perception & Psychophysics
|August 23, 2008
Summary
Practice improves visually guided actions like braking by enhancing perceptual attunement to optical information. This attunement transfers between different braking tasks, demonstrating its crucial role in motor learning.
Area of Science:
- Visual Perception
- Motor Control
- Human Factors
Background:
- Performance in visually guided actions can improve with practice.
- Observers may become perceptually attuned to more reliable optical information.
- Previous research (Fajen & Devaney, 2006) showed perceptual attunement in an emergency braking task.
Purpose of the Study:
- To investigate if perceptual attunement from practicing emergency braking transfers to normal braking.
- To determine if practicing regulated braking also leads to perceptual attunement.
- To examine the role of perceptual attunement in learning visually guided actions.
Main Methods:
- Experiment 1: Subjects performed normal braking before and after practicing emergency braking.
- Experiment 2: Subjects practiced regulated braking to assess perceptual attunement.
- Measurements included performance across different object sizes and approach speeds.
Main Results:
- Size and speed effects in braking diminished after practice on emergency braking.
- Perceptual attunement was observed after practicing regulated braking alone.
- Practice-induced perceptual attunement transferred from emergency to normal braking tasks.
Conclusions:
- Perceptual attunement plays a significant role in learning visually guided actions.
- Braking control is not solely based on optical invariants.
- Practice enhances the ability to utilize relevant optical information for improved performance.
More Related Videos
Related Concept Videos
01:18Hierarchy of Motor Control
5.6K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
5.6K
01:19Root-Locus Method
621
A cruise control system in a car is designed to maintain a specified speed automatically by adjusting the gas pedal. The system continuously measures the vehicle's speed and makes fine adjustments to the pedal to achieve this goal. The root locus method is particularly useful for understanding how the cruise control system's behavior changes under varying conditions, such as when the car goes uphill, downhill, or faces strong wind resistance.
This system can be represented by a block...
This system can be represented by a block...
621
01:07Time-Domain Interpretation of PD Control
500
Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
Consider the example of control of motor torque. Initially, a positive...
500
01:28Perception
1.8K
Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
Bottom-up processing begins at the sensory level, where receptors detect external environmental stimuli. These could include the tactile sensation of...
1.8K
01:12Perceptual Constancy
1.8K
Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...
1.8K
01:21Cognitive Learning
1.6K
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
1.6K