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Related Concept Videos

Effects of feedback01:24

Effects of feedback

Feedback in control systems plays a critical role in shaping various operational parameters, extending beyond simple error reduction to influence stability, bandwidth, gain, impedance, and sensitivity. Understanding these effects requires examining a basic feedback system characterized by defined input, output, error, and feedback signals.
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Feedback control systems01:26

Feedback control systems

Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Feedback Loops01:01

Feedback Loops

In most cases, excessive hormone production is prevented by negative feedback—a loop that starts with a stimulus inducing the release of a particular substance, like a hormone, to maintain a certain level before triggering a signal that results in a decrease in further release of the hormone.
Positive and Negative Feedback Loops01:18

Positive and Negative Feedback Loops

Animal organs and organ systems constantly adjust to internal and external changes through a process called homeostasis ("steady state"). Examples of these changes include regulation of the level of glucose or calcium in the blood or internal responses to external temperatures. Homeostasis requires  maintaining an internal dynamic equilibrium:
Sources of Self-Esteem II: Performance Feedback01:24

Sources of Self-Esteem II: Performance Feedback

Self-esteem is intricately tied to our perception of competence and our ability to exert control over our lives. One of the primary sources of this perception is performance feedback — the ongoing evaluation of our actions in terms of success and failure. According to Franks and Marolla (1976), people derive self-worth from experiencing themselves as causal agents, capable of achieving goals and overcoming obstacles. This process nurtures a critical component of self-esteem: self-efficacy,...
Feedback Inhibition00:46

Feedback Inhibition

Biochemical reactions are occurring constantly in cells, converting starting substances to different products, usually with the help of enzymes that speed the reactions. Without enzymes, it would take far too long for most reactions to occur to be useful to the cell!

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Related Experiment Video

Updated: Jun 26, 2026

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum
04:36

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum

Published on: August 5, 2020

Implementing feedback cards in core clerkships.

Jennifer R Kogan1, Judy A Shea

  • 1Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA. jennifer.kogan@uphs.upenn.edu

Medical Education
|January 15, 2009
PubMed
Summary
This summary is machine-generated.

Medical students received frequent feedback via a card system, but satisfaction decreased. Further research is needed to improve feedback satisfaction during clinical training.

Related Experiment Videos

Last Updated: Jun 26, 2026

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum
04:36

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum

Published on: August 5, 2020

Area of Science:

  • Medical Education
  • Clinical Training
  • Healthcare Professions Education

Background:

  • Medical students historically receive limited formative feedback.
  • Existing feedback research often focuses on single courses or specialties.
  • There is a lack of research on feedback across core clerkship years.

Purpose of the Study:

  • To assess the feasibility of a cross-clerkship feedback card system.
  • To describe the content of feedback requested and received during core clerkships.
  • To examine student satisfaction with the implemented feedback card system.

Main Methods:

  • 127 students in six clerkships used feedback cards twice weekly (inpatient) or weekly (outpatient).
  • Students indicated desired feedback areas; supervisors confirmed provided feedback.
  • Descriptive statistics and ANOVA analyzed feedback completeness, content, and satisfaction.

Main Results:

  • 5369 feedback cards were completed (78% target).
  • Presentation skills (57%) and fund of knowledge (48%) were most requested feedback areas.
  • Student satisfaction with feedback usefulness significantly decreased post-implementation.

Conclusions:

  • Despite receiving feedback multiple times, student satisfaction was low.
  • The feedback card system's feasibility was demonstrated, but satisfaction requires improvement.
  • Further research is essential to identify factors enhancing feedback satisfaction in clinical training.