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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 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.
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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:
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...
Pulse rhythm01:30

Pulse rhythm

Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac muscle...

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Related Experiment Video

Updated: Jun 10, 2026

Psychophysiological Stress Assessment Using Biofeedback
10:16

Psychophysiological Stress Assessment Using Biofeedback

Published on: July 31, 2009

Barofeedback.

Sanjay Kalra1, Nishant Raizada2, Sourabh Sharma3

  • 1Department of Endocrinology, Bharti Hospital, Karnal, India; University Centre for Research & Development, Chandigarh University, Mohali, India.

JPMA. the Journal of the Pakistan Medical Association
|June 9, 2026
PubMed
Summary
This summary is machine-generated.

We propose barofeedback, a comprehensive approach for obesity management. This method integrates internal and external cues with physiological data to optimize weight management behaviors and choices for individuals and their caregivers.

Keywords:
GLP1RA, obesity, overweight, psychosocial weight management, behavioural therapy.

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Last Updated: Jun 10, 2026

Psychophysiological Stress Assessment Using Biofeedback
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Published on: July 31, 2009

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10:51

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Published on: January 20, 2012

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07:05

A Protocol for the Administration of Real-Time fMRI Neurofeedback Training

Published on: August 24, 2017

Area of Science:

  • Obesity research
  • Behavioral medicine
  • Health psychology

Background:

  • Obesity is a complex disease requiring multifaceted management strategies.
  • Current obesity treatments often lack comprehensive integration of behavioral and physiological factors.
  • A need exists for innovative approaches to support long-term weight management.

Purpose of the Study:

  • To introduce and define the concept of barofeedback for obesity treatment.
  • To propose barofeedback as an integrated biopsychosocio-environmental approach.
  • To advocate for the integration of barofeedback into obesity care protocols.

Main Methods:

  • Barofeedback utilizes awareness of external cues and triggers.
  • It incorporates subjective internal responses and feelings.
  • Objective physiological parameters are measured and integrated.

Main Results:

  • Barofeedback assists individuals and caregivers in modifying attitudes and behaviors.
  • It supports the optimization of choices related to weight management.
  • This approach provides a framework for comprehensive obesity management.

Conclusions:

  • Barofeedback offers a novel, holistic strategy for tackling obesity.
  • Integrating barofeedback can enhance the effectiveness of weight management interventions.
  • This concept should be a standard component of all obesity care protocols.