Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Social Facilitation01:04

Social Facilitation

Not all intergroup interactions lead to negative outcomes. Sometimes, being in a group situation can improve performance. Social facilitation occurs when an individual performs better when an audience is watching than when the individual performs the behavior alone. This typically occurs when people are performing a task for which they are skilled.
Method of Joints: Problem Solving II01:30

Method of Joints: Problem Solving II

Consider a truss structure with frictionless joints fixed to a wall and roller support. If a force of 150 N is applied to joint A, the forces in each member of the truss can be determined using the method of joints.
Method of Joints: Problem Solving I01:30

Method of Joints: Problem Solving I

The method of joints is a commonly used technique to analyze the forces in structural trusses. The method is based on the principle of equilibrium, which assumes that the truss members are connected by frictionless pins. The forces at each joint can be determined by considering the equilibrium of the forces acting on that joint. Consider a truss structure with two forces of 20 N and 10 N acting at joints C and D, respectively. The method of joints can be used to determine the forces FCB, FDC,...
Functional Classification of Joints01:09

Functional Classification of Joints

Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses  or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
Three-Dimensional Force System:Problem Solving01:30

Three-Dimensional Force System:Problem Solving

A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
Interference and Diffraction02:18

Interference and Diffraction

Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.

You might also read

Related Articles

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

Sort by
Same author

Implementation OF Enhanced Recovery After Bariatric Surgery (ERABS) Protocol: Single-Center Experience of 470 Consecutive Laparoscopic Sleeve Gastrectomies and Separate Analysis for Different Volume Surgical Sessions.

Obesity surgery·2026
Same author

Understanding Sleep Challenges in Pediatric Palliative Care: A Patient-Focused Scoping Review and Implications for Practice.

Journal of clinical medicine·2026
Same author

Inter-brain ERPs alignment during a joint Simon task: An EEG hyperscanning study.

PloS one·2026
Same author

The Psychological Burden of Neuromuscular Diseases: A Narrative Review of Anxiety, Depression, Coping, and Quality of Life.

Muscles (Basel, Switzerland)·2025
Same author

Attentional capture by real and illusory faces: a failure to replicate.

Psychological research·2025
Same author

Development of a submicron emulsion-based delivery system to improve the anti-inflammatory activity of urolithin A.

Journal of pharmacy & pharmaceutical sciences : a publication of the Canadian Society for Pharmaceutical Sciences, Societe canadienne des sciences pharmaceutiques·2025
Same journal

Molecular links between reelin downregulation, topoisomerase IIβ alterations, and proteins involved in Alzheimer pathology in human SH-SY5Y neuroblastoma cell line.

Experimental brain research·2026
Same journal

Motor cortex excitability during spine shape-judgment in adolescent idiopathic scoliosis: a TMS motor evoked potential study.

Experimental brain research·2026
Same journal

Trajectory dynamics and endpoint accuracy in targeted ballistic contractions.

Experimental brain research·2026
Same journal

Exploring Sevoflurane promotes hippocampal neuron mitophagy in elderly postoperative cognitive dysfunction by HSP90AA1 based on network pharmacology.

Experimental brain research·2026
Same journal

Loading modulates monosynaptic transmission from spindle primary afferents to motoneurons in humans.

Experimental brain research·2026
Same journal

Energy-dependent cortical injury thresholds in high-frequency transcortical electrical stimulation: a biophysical study in a rat model.

Experimental brain research·2026
See all related articles

Related Experiment Video

Updated: Jun 2, 2026

A Task for Assessing the Impact of a Partner on the Speed and Accuracy of Motor Performance in Rats
06:17

A Task for Assessing the Impact of a Partner on the Speed and Accuracy of Motor Performance in Rats

Published on: October 17, 2019

Facilitation and interference components in the joint Simon task.

Luca Ferraro1, Cristina Iani, Michele Mariani

  • 1Dipartimento di Comunicazione e Economia, Università di Modena e Reggio Emilia, Via Allegri 9, 42121 Reggio Emilia, Italy.

Experimental Brain Research
|May 11, 2011
PubMed
Summary
This summary is machine-generated.

The joint Simon effect primarily involves interference, not facilitation. Joint spatial practice worsens this interference, showing that performing tasks with others can disadvantage performance, especially on stimuli presented on another person's side.

More Related Videos

Corticospinal Excitability Modulation During Action Observation
12:33

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Related Experiment Videos

Last Updated: Jun 2, 2026

A Task for Assessing the Impact of a Partner on the Speed and Accuracy of Motor Performance in Rats
06:17

A Task for Assessing the Impact of a Partner on the Speed and Accuracy of Motor Performance in Rats

Published on: October 17, 2019

Corticospinal Excitability Modulation During Action Observation
12:33

Corticospinal Excitability Modulation During Action Observation

Published on: December 31, 2013

Area of Science:

  • Cognitive psychology
  • Social cognition
  • Human-computer interaction

Background:

  • The joint Simon effect describes performance changes when individuals perform a Simon task collaboratively.
  • Understanding the components of this effect (facilitation vs. interference) is crucial for explaining social influences on cognition.

Purpose of the Study:

  • To determine if the joint Simon effect comprises both facilitation and interference.
  • To investigate if joint spatially compatible practice enhances facilitation in the joint Simon task.

Main Methods:

  • Two experiments were conducted where participants performed a joint Simon task.
  • Experiment 1 involved only the joint Simon task; Experiment 2 included prior joint spatial compatibility practice.
  • Stimulus-response conditions included corresponding, non-corresponding, and neutral trials.

Main Results:

  • The joint Simon effect was found to be predominantly interference-based.
  • Spatially compatible practice, performed jointly, significantly amplified this interference.
  • Participants exhibited slower reaction times (RTs) to stimuli on the other agent's side.

Conclusions:

  • The joint Simon effect is primarily driven by interference.
  • Joint spatial practice can exacerbate interference in collaborative tasks.
  • The presence of another individual can negatively impact performance, particularly when responding to stimuli outside one's own spatial frame.