Related Experiment Video
Updated: May 8, 2026
10:51
An Experimental Platform to Study the Closed-loop Performance of Brain-machine Interfaces
Published on: March 10, 2011
Further tests of adams' closed-loop theory
1a Department of Physical Education , The University of Michigan.
Journal of Motor Behavior
|August 22, 2013
Summary
Adams
Area of Science:
- Motor learning research
- Human motor control studies
Background:
- Adams' closed-loop theory of motor learning proposes memory and perceptual traces for response production and evaluation.
- Understanding the mechanisms of motor skill acquisition is crucial for rehabilitation and performance enhancement.
Purpose of the Study:
- To empirically test the validity of Adams' closed-loop theory in a ballistic manual response task.
- To investigate the influence of knowledge of results (KR) and feedback on motor learning and error detection.
Main Methods:
- Two experiments involving participants performing a 26-inch ballistic manual response within 200 msec.
- A 2x2 factorial design manipulating the presence/absence of visual/auditory feedback and the withdrawal of KR during trials 20-45.
Main Results:
- Withdrawal of knowledge of results (KR) significantly impaired performance.
- Performance decrements were more pronounced under limited feedback conditions.
- Error detection capabilities improved over trials, independent of visual and auditory feedback.
Conclusions:
- The study provides partial support for Adams' closed-loop theory of motor learning.
- The findings highlight the importance of KR for motor performance but suggest error detection may operate independently of continuous feedback.
More Related Videos
Related Concept Videos
01:17Open and closed-loop control systems
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal and...
02:40The Scientific Method
Research is what makes the difference between facts and opinions. Facts are observable realities, and opinions are personal judgments, conclusions, or attitudes that may or may not be accurate. In the scientific community, facts can be established only using evidence collected through empirical research.
01:29Theory of Attribution II: Kelley's Covariation Theory
Attribution theory plays a crucial role in social psychology, helping to explain how individuals interpret the causes of behavior. One prominent model within this field is Harold Kelley's covariation theory, which provides a systematic approach to determining whether internal traits or external circumstances drive a person's actions. The model posits that individuals rely on three key types of information—consensus, consistency, and distinctiveness—to make these judgments.Consensus: Comparing...
01:28Adler's Individual Psychology
Alfred Adler, a prominent figure in psychology, founded the school of individual psychology. In contrast to Freud's emphasis on sexual or aggressive motives, Adler suggested that individuals are primarily motivated by their purposes and goals. He believed that people strive for perfection rather than pleasure. Adler argued that individuals could creatively act upon their genetic inheritance and environmental experiences to shape their own lives, emphasizing conscious motivation over unconscious...
01:15Theory of Attribution I: Correspondent Inference Theory
Correspondent inference theory, proposed by Jones and Davis in 1965, seeks to explain how individuals infer stable personality traits from observed behaviors. It suggests that people attribute actions to underlying dispositions rather than external circumstances, particularly when the behavior appears intentional and socially significant.Voluntary Behavior and Dispositional AttributionAccording to this theory, individuals are more likely to attribute behavior to personal traits when it appears...
01:24Facial Feedback Hypothesis
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role of...