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The more symmetrical an organism is, the better they are at handling developmental stress arising from environmental stress, genetic problems and developmental instability. [10] Along with developmental stability, FA indicates the genetic fitness of an individual and will therefore affect sexual selection.
Schismogenesis is a term in anthropology that describes the formation of social divisions and differentiation. Literally meaning "creation of division", the term derives from the Greek words σχίσμα skhisma "cleft" (borrowed into English as schism, "division into opposing factions"), and γένεσις genesis "generation, creation" (deriving in turn from gignesthai "be born or produced ...
In symmetrical relationships, the pattern of interaction is defined by two people responding to one another in the same way. This is a common pattern of interaction within power struggles. In complementary relationships, the participants respond to one another in opposing ways.
Female humans and other primates find faces with high levels of symmetry and masculinity more attractive, especially at high fertility. Having symmetrical features may indicate that an individual possesses high-quality genes related to health, and that they developed in a stable environment with little disease or trauma. [ 38 ]
For example, spaces are symmetric. The distance between two points is the same regardless of which point you start from. However, psychological similarity is not symmetric. For example, we often prefer to state similarity in one direction. For example, it feels more natural to say that 101 is like 100 than to say that 100 is like 101.
In statistics, a symmetric probability distribution is a probability distribution—an assignment of probabilities to possible occurrences—which is unchanged when its probability density function (for continuous probability distribution) or probability mass function (for discrete random variables) is reflected around a vertical line at some ...
For example, "is a blood relative of" is a symmetric relation, because x is a blood relative of y if and only if y is a blood relative of x. Antisymmetric for all x, y ∈ X, if xRy and yRx then x = y. For example, ≥ is an antisymmetric relation; so is >, but vacuously (the condition in the definition is always false). [11] Asymmetric
An example is the love-relation: if Dave loves Sara then it is possible but not necessary that Sara loves Dave. A special case of non-symmetric relations is asymmetric relations, which only go one way. An example is the relation being heavier than: if Ben is heavier than Nia then it is not possible at the same time that Nia is heavier than Ben ...