Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Feedback Inhibition

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!

Facial Feedback Hypothesis

Facial 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...

Effects of feedback

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...

Desensitization and Tachyphylaxis

Desensitization and Tachyphylaxis

Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
Several...

Sensory Modalities

Sensory Modalities

Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...

Positive and Negative Feedback Loops

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:

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

The effect of transcranial direct current stimulation on reading adaptation in adults who stutter.

Journal of fluency disorders·2026

Same author

Reevaluating the classification of pediatric speech sound disorders: a ground truthing perspective.

Frontiers in human neuroscience·2025

Same author

Technology and Dementia Preconference.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025

Same author

Public Health.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025

Same author

Developing Topics.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025

Same author

The articulatory basis of phonological error patterns in childhood speech sound disorders.

Frontiers in human neuroscience·2025

Search research articles

Related Experiment Video

Updated: Jun 20, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Published on: September 7, 2022

Sensory feedback dependence hypothesis in persons who stutter.

Aravind Kumar Namasivayam¹, Pascal van Lieshout, William E McIlroy

¹Department of Speech-Language Pathology, Oral Dynamics Laboratory, University of Toronto, Toronto, Ontario, Canada M5G 1V7. a.namasivayam@utoronto.ca

Human Movement Science

|August 21, 2009

Summary

This study examined sensory feedback in speech motor control for people who stutter (PWS) and typical speakers. Findings suggest PWS do not rely more heavily on sensory feedback for speech, challenging existing theories.

More Related Videos

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Published on: May 23, 2019

Force and Position Control in Humans - The Role of Augmented Feedback

Force and Position Control in Humans - The Role of Augmented Feedback

Published on: June 19, 2016

Related Experiment Videos

Last Updated: Jun 20, 2026

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique

Published on: September 7, 2022

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Applying Incongruent Visual-Tactile Stimuli during Object Transfer with Vibro-Tactile Feedback

Published on: May 23, 2019

Force and Position Control in Humans - The Role of Augmented Feedback

Force and Position Control in Humans - The Role of Augmented Feedback

Published on: June 19, 2016

Area of Science:

Speech motor control
Neuroscience of speech
Auditory and somatosensory processing

Background:

Understanding speech motor control in persons who stutter (PWS) is crucial.
The role of sensory feedback (auditory, proprioceptive, tactile) in speech coordination remains debated.
Previous hypotheses suggest PWS may have altered sensory feedback reliance or deficits.

Purpose of the Study:

To investigate sensory feedback's role in speech motor coordination for PWS versus typical speakers.
To examine feedback effects under normal and fast speech rates, with and without jaw immobilization.
To test hypotheses of sensory feedback dependency or deficit in PWS speech.

Main Methods:

Utilized auditory masking, proprioceptive tendon vibration, and tactile lip contact perturbations.
Compared speech motor coordination in persons who stutter (PWS) and persons who do not stutter (PNS).
Assessed effects across jaw-free and jaw-immobilized conditions during normal and fast speech rates.

Main Results:

Both groups showed significant effects of sensory feedback perturbations.
A key between-group difference emerged at fast speech rates in the jaw-free condition.
Control speakers exhibited more intra-gestural coordination variability than PWS under simultaneous perturbations.

Conclusions:

The study's findings do not support the feedback dependency hypothesis for PWS.
Results also do not support the sensory deficit hypothesis in explaining PWS speech characteristics.
Sensory feedback plays a role, but its differential impact in PWS requires further investigation.