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

Structural Joints: Synovial Joints

Structural Joints: Synovial Joints

Synovial joints are the most common type of joint in the body. A key structural characteristic for a synovial joint is the presence of a joint cavity. This fluid-filled space is where the articulating surfaces of the bones contact each other. Also, unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly...

Structural Joints: Fibrous Joints

Structural Joints: Fibrous Joints

Fibrous joints are a type of joint where the bones are connected by fibrous connective tissue. These joints provide stability and minimal to no movement between the articulating bones. There are three types of fibrous joints.
Suture
All the bones of the skull, except for the mandible, are joined to each other by a fibrous joint called a suture. The fibrous connective tissue found at a suture strongly unites the adjacent skull bones and thus helps to protect the brain and form the face. In...

Structural Joints: Cartilaginous Joints

Structural Joints: Cartilaginous Joints

As the name indicates, at a cartilaginous joint, the adjacent bones are united by cartilage, a tough but flexible type of connective tissue. Unlike synovial joints, these types of joints lack a joint cavity and involve bones joined together by either hyaline cartilage or fibrocartilage.
There are two types of cartilaginous joints:
Synchondrosis
A synchondrosis ("joined by cartilage") is a cartilaginous joint where bones are connected by hyaline cartilage. Synchondrosis may be temporary...

Joints

Joints

Joints, also called articulations or articular surfaces, are points at which ligaments or other tissues connect adjacent bones. Joints permit movement and stability, and can be classified based on their structure or function.
Structural joint classifications are based on the material that makes up the joint as well as whether or not the joint contains a space between the bones. Joints are structurally classified as fibrous, cartilaginous, or synovial.
Fibrous Joints Are Immovable
The bones of a...

Fixed Action Patterns

Fixed Action Patterns

A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.

Method of Joints

Method of Joints

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.
Since plane truss members are in the same plane, each joint is subjected to a coplanar and concurrent force system. To apply the method of joints, the first step is to...

You might also read

Related Articles

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

Sort by

Same author

Dynamic vocal learning in adult marmoset monkeys.

Proceedings. Biological sciences·2026

Same author

To Merge or not: The Early Onto- and Phylogenetic Origin of Co-Representation.

Developmental science·2026

Same author

Opportunities and mechanisms for learning through social interactions: lessons from marmosets.

Philosophical transactions of the Royal Society of London. Series B, Biological sciences·2026

Same author

Reading hominin life history in fossil bones and teeth: methods to test hypotheses regarding its evolution.

Biological reviews of the Cambridge Philosophical Society·2026

Same author

Cooperative Breeding as a Likely Early Catalyst of Human Evolution.

Evolutionary anthropology·2025

Same author

Common marmosets (Callithrix jacchus) excel in a one-trial spatial memory test, yet perform poorly in a classical memory task.

Animal cognition·2025

Search research articles

Related Experiment Video

Updated: Feb 11, 2026

Stereotaxic Surgery for Implantation of Microelectrode Arrays in the Common Marmoset Callithrix jacchus

Stereotaxic Surgery for Implantation of Microelectrode Arrays in the Common Marmoset Callithrix jacchus

Published on: September 29, 2019

Corepresentation During Joint Action in Marmoset Monkeys ( Callithrix jacchus).

Fabia M Miss¹, Judith M Burkart¹

¹Department of Anthropology, University of Zurich.

Psychological Science

|April 28, 2018

Summary

Action corepresentation, crucial for cooperation, is not unique to humans. Common marmosets exhibit this ability, suggesting routine coordination, not complex cognition, drives its evolution in cooperative species.

Keywords:

common marmoset monkeys coordinated joint action corepresentation evolution joint Simon task social cognition

More Related Videos

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset Callithrix jacchus

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset Callithrix jacchus

Published on: February 27, 2018

Author Spotlight: Marmoset Research - Scope and Challenges

Author Spotlight: Marmoset Research - Scope and Challenges

Published on: June 9, 2023

Related Experiment Videos

Last Updated: Feb 11, 2026

Stereotaxic Surgery for Implantation of Microelectrode Arrays in the Common Marmoset Callithrix jacchus

Stereotaxic Surgery for Implantation of Microelectrode Arrays in the Common Marmoset Callithrix jacchus

Published on: September 29, 2019

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset Callithrix jacchus

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset Callithrix jacchus

Published on: February 27, 2018

Author Spotlight: Marmoset Research - Scope and Challenges

Author Spotlight: Marmoset Research - Scope and Challenges

Published on: June 9, 2023

Area of Science:

Comparative Psychology
Primatology
Evolutionary Anthropology

Background:

Behavioral coordination is vital for cooperation in humans.
Understanding the evolutionary origins of cooperation requires identifying shared mechanisms across species.
Action corepresentation, representing a partner's actions, is key to human cooperation.

Purpose of the Study:

To investigate the presence of action corepresentation in common marmosets (Callithrix jacchus).
To explore the evolutionary basis of action corepresentation and its link to cooperation.

Main Methods:

Utilized the auditory joint Simon task to assess action corepresentation in marmosets.
Observed behavioral responses, including gaze direction, during coordinated tasks.

Main Results:

Common marmosets demonstrated a joint Simon effect, indicating action corepresentation.
Marmosets engaged in more mutual gazing during the joint task compared to a control condition.

Conclusions:

Action corepresentation is present in cooperatively breeding marmosets, challenging its uniqueness to humans.
The findings suggest that spatial and temporal coordination, rather than advanced cognitive skills, may be crucial for the evolution of corepresentation.