It was pointed out by Trustrum (1961) that even for non-inbred pairs of relatives it is possible for all four cross-parental kinship coefficients to be non-zero, and hence that the expression often assumed for the correlation between such relatives is not completely general. Van Aarde (1975) has recently made the same comment. We derive a restriction on the space of attainable Cotterman coeffic...

A large body of research indicates that suicidal behavior in adolescence is related to dysfunctional family processes. The purpose of this paper was to investigate this relationship focusing on the concepts of boundary transgression, double bind interactions, and the demarcation of kinship roles in the family. The possibility is explored that suicidal behavior is a double bind response to contr...

The importance of kin relationships was investigated across adulthood with 5 samples (total N = 1,365). Within the personal networks, the genetic relatedness with relationship partners predicted subjective closeness (mean r = .50) and social support (mean r = .13). Effects were robust in 2 samples when controlling for residential proximity and contact frequency. These intraindividual correlatio...

We investigated the relationship between age and laughing and smiling in children with Angelman syndrome. Twenty-four children with Angelman syndrome were exposed to three experimentally manipulated conditions: proximity only, restricted social interaction, and social interaction. Children smiled the most in the social interaction condition and the least in the proximity only condition confirmi...

the present study aims at exploring kinship terms and the different ways in which they are used to refer to and address relatives and non-relatives in hawrami, an iranian language spoken in paveh, a border city in kermanshah province. the relevant linguistic and cultural data are obtained primarily by one of the researchers as a native speaker of the dialect and through field works and intervie...