Related Experiment Video
Updated: Jun 24, 2026
09:04
Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
Published on: September 5, 2011
Summary
Identical twins showed less positive identification with siblings compared to singletons. This suggests twins may adopt paternal models due to identity uncertainty stemming from their twin relationship.
Area of Science:
- Psychology
- Developmental Psychology
- Twin Studies
Background:
- Understanding identity formation in adolescents is crucial.
- Twin studies offer unique insights into genetic and environmental influences on personality.
- The Blacky Picture Test is a projective tool used to assess personality dynamics.
Purpose of the Study:
- To investigate identity formation differences between monozygotic twins and singletons.
- To explore the impact of the twin relationship on identification processes.
- To analyze specific factors related to fraternal relationships and identification using the Blacky Picture Test.
Main Methods:
- Administered the Blacky Picture Test to 12 pairs of male monozygotic twins (aged 17-19) and 12 singletons.
- Assessed 30 distinct factors from each participant's test protocol.
- Employed the Mann-Whitney U test to compare scores between the twin and singleton groups.
Main Results:
- A significant difference was found in only one factor: positive identification and fraternal relationship.
- Twins identified with the sibling figure significantly less often than singletons.
- Qualitative analysis suggested twins exhibited passive acceptance of the paternal model.
Conclusions:
- The twin relationship may contribute to a precarious sense of identity in adolescents.
- Twins' uncertainty about their own identity might lead to closer adherence to the paternal image.
- The findings highlight unique psychological dynamics within twin relationships concerning identity development.
Related Concept Videos
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...
01:23Behavioral Genetics and Its Designs
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
01:27Ethnic Identity within a Larger Culture
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
01:23Influence of Parents and Peers on Identity
Adolescence is a pivotal period of identity formation, during which individuals begin to answer questions central to their sense of self, such as "Who am I?" and "Who do I hope to become?" Both parents and peers play critical roles in guiding adolescents through this complex developmental phase.
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth. This guiding role...
Parental Influence on Identity Development
Parents serve as primary guides and managers in an adolescent's life, offering support instrumental in decision-making and personal growth. This guiding role...
01:25Personal Identity
Personal identity is the deeply felt sense of self that individuals cultivate over time, intricately woven from intrinsic qualities they consider essential to their existence—qualities such as morality, intelligence, and friendliness. These attributes serve as vital internal benchmarks, guiding individuals in evaluating whether their actions resonate with their true selves.When personal identity takes center stage in one's life, individuals often emphasize their distinctiveness, highlighting...
01:29Social Identity
Social identity constitutes a significant aspect of an individual’s self-concept, shaped by membership in various social groups, including gender, nationality, ethnicity, sexual orientation, and political affiliation. Individuals associate specific traits with particular social groups, leading to internalization of these traits. For example, musicians are often perceived as creative, while women are frequently associated with nurturing tendencies. Once individuals identify with a particular...