Related Experiment Video
Updated: Jun 18, 2026
14:34
How to Create and Use Binocular Rivalry
Published on: November 10, 2010
[Identical, for better and for worse].
Irena Ulanovsky1, Polo Sujov, Zeev Weiner
1Department of Neonatology, Meyer Children's Hospital, Rambam Health Care Campus, Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
Harefuah
|November 12, 2009
Summary
This study details identical twins with similar cerebral bilateral ventriculomegaly, a condition affecting brain fluid spaces. A potential genetic link is suggested for this rare finding in identical twins.
Area of Science:
- Neurology
- Genetics
- Obstetrics
Background:
- Ventriculomegaly, an enlargement of the brain's ventricles, can have various causes and implications.
- Identical twins often share genetic material, potentially leading to similar congenital conditions.
- Previous research has identified shared central nervous system (CNS) features in identical twins, but bilateral ventriculomegaly is not well-documented.
Purpose of the Study:
- To report the first known case of similar bilateral ventriculomegaly in monochorionic diamniotic identical twins.
- To investigate the potential for a genetic etiology of this specific neurological finding in identical twins.
- To highlight the importance of considering genetic factors in cases of concordant congenital abnormalities in identical twins.
Main Methods:
- Utilized sonography and Magnetic Resonance Imaging (MRI) for fetal assessment.
- Conducted neonatal brain Ultrasound (US) for postnatal evaluation.
- Performed clinical and imaging follow-up to monitor the condition in both twins.
Main Results:
- Both fetuses exhibited sonographic and MRI evidence of cerebral bilateral ventriculomegaly.
- Neonatal brain US confirmed similar bilateral ventriculomegaly in both infants.
- Physical and imaging similarities persisted throughout the follow-up period.
Conclusions:
- This case represents the first documented instance of similar bilateral ventriculomegaly in identical twins.
- The concordant presentation suggests a potential genetic origin for this condition in identical twins.
- Further reports of similar cases in identical twins could establish cerebral ventriculomegaly as a shared CNS feature.
Related Concept Videos
01:28Equivalent Couples
In mechanical engineering, the concept of equivalent couples plays a crucial role in understanding and analyzing various mechanical systems.
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
Two couples are considered to be equivalent if they produce the same rotational effect on a rigid body. In other words, the two couples have the same magnitude and act in the same direction, causing the same angular displacement or acceleration in the body.
For instance, consider two couples lying in the plane of the page, with one having a pair of equal...
01:18Principle of Equivalence
According to Albert Einstein (1897-1955), free-falling and feeling weightless are intrinsically linked. If a person were in free-fall under gravity, for example, diving towards the Earth from an airplane, they would feel completely weightless. Similarly, a person descending in a lift may feel partially weightless. Broadly speaking, it is assumed that an object in a uniform gravitational field and an object undergoing constant acceleration in the absence of gravity are under the same...
03:00Self-Evaluation: Self-Enhancement and Self-Verification
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
01:29Self-Discrepancy and Its Effects
Self-discrepancy theory explains how people compare their actual self to their ideal and ought selves and how mismatches between these self-guides can lead to emotional distress. Developed by E. Tory Higgins, the theory distinguishes among three components of self-concept: the actual self, the ideal self, and the ought self. These refer respectively to how individuals perceive themselves, how they aspire to be, and how they believe they are obligated to be. Emotional well-being, self-esteem,...
02:15Sternberg's Triangular Theory of Love
We typically love the people with whom we form relationships, but the type of love we have for our family, friends, and lovers differs. Robert Sternberg (1986) proposed that there are three components of love: intimacy, passion, and commitment. These three components form a triangle that defines multiple types of love: this is known as Sternberg’s triangular theory of love. Intimacy is the sharing of details and intimate thoughts and emotions. Passion is the physical attraction—the flame in the...
01:27Relationship Growth
Interpersonal relationships progress through stages, beginning with awareness and moving toward mutuality, where emotional connections deepen. While many relationships remain at moderate levels of mutuality, deeper connections form through self-disclosure, trust, and interdependence.Self-DisclosureSelf-disclosure involves revealing personal information, starting with surface-level details and gradually progressing to more intimate content. As trust grows, individuals feel more comfortable...