Researchers have shown that the more genes twins share, the more they care about one another. Here we examine a psychological mediator of such genetic influences, “identity fusion” (a visceral sense of oneness with them). Results supported this hypothesis. Relative to dizygotic twins, monozygotic twins reported stronger fusion and elevated desire to have contact and share experiences with their twin (Study 1), to forgive and grant favors to their twin after being disappointed by him/her (Study 2), and willingness to make sacrifices for their twin (Study 3). Fusion with the twin mediated the impact of zygosity on these outcomes. These findings demonstrate that genetic relatedness fosters a powerful feeling of union with one’s twin that predi...
Inclusive fitness theory predicts that organisms will tend to help close kin rather than less relate...
Causes of individual differences in happiness, as assessed with the Subjective Happiness Scale, are ...
Despite the increasing interest in twin studies and the stunning amount of research on face recognit...
Researchers have shown that the more genes twins share, the more they care about one another. Here w...
According to kin selection theory, indirect reproductive advantages may induce individuals to care f...
Identity fusion — a visceral feeling of connection with a group — is a powerful predictor of willing...
Empirical studies, naturalistic observations, and clinical work with twins all confirm the profound ...
Willingness to lay down one's life for a group of non-kin, well documented historically and ethnogra...
We studied altruistic behaviors of varying biological cost (high, medium, and low) among siblings of...
Willingness to lay down one’s life for a group of non-kin, well documented historically and ethnogra...
cotwin is also affected? If both monozygotic and dizygotic twin pairs have similar high concordance ...
The theory of inclusive fitness has transformed our understanding of cooperation and altruism. Howev...
Inclusive fitness theory has been used to explain the over-all pattern of altruistic behavior. Howev...
Dissociation is commonly regarded as a disruption in the normally integrated functions of memory, kn...
Inclusive fitness theory predicts that organisms will tend to help close kin more than less related ...
Inclusive fitness theory predicts that organisms will tend to help close kin rather than less relate...
Causes of individual differences in happiness, as assessed with the Subjective Happiness Scale, are ...
Despite the increasing interest in twin studies and the stunning amount of research on face recognit...
Researchers have shown that the more genes twins share, the more they care about one another. Here w...
According to kin selection theory, indirect reproductive advantages may induce individuals to care f...
Identity fusion — a visceral feeling of connection with a group — is a powerful predictor of willing...
Empirical studies, naturalistic observations, and clinical work with twins all confirm the profound ...
Willingness to lay down one's life for a group of non-kin, well documented historically and ethnogra...
We studied altruistic behaviors of varying biological cost (high, medium, and low) among siblings of...
Willingness to lay down one’s life for a group of non-kin, well documented historically and ethnogra...
cotwin is also affected? If both monozygotic and dizygotic twin pairs have similar high concordance ...
The theory of inclusive fitness has transformed our understanding of cooperation and altruism. Howev...
Inclusive fitness theory has been used to explain the over-all pattern of altruistic behavior. Howev...
Dissociation is commonly regarded as a disruption in the normally integrated functions of memory, kn...
Inclusive fitness theory predicts that organisms will tend to help close kin more than less related ...
Inclusive fitness theory predicts that organisms will tend to help close kin rather than less relate...
Causes of individual differences in happiness, as assessed with the Subjective Happiness Scale, are ...
Despite the increasing interest in twin studies and the stunning amount of research on face recognit...