Glossary F

familial aggregation refers to the extent to which a disorder would be found among a patient’s relatives.

Familial concentration refers to the rate of occurrence of a particular characteristic, such as specific language impairment within a family . High Familial concentration suggests a genetic basis.

Familial mental retardation is defined as form of mental retardation that does not involve biological damage, but instead represents the low end of the normal distribution of intelligence
Familial sinistrality refers to the degree of left-handedness within the nuclear and extended family .

Familial studies of intelligence is defined as studies in which some measure or measures of intelligence among people of a known genetic relationship are correlated; the extent to which performance varies as a function of genetic similarity is used as an indication of the heritability of that measure. Please see also Heritability.
Familialism refers to a cultural value that emphasizes close family relationships, bonds, and ties.

Familiar size is a depth cue. It is a person's knowledge of an object"s actual size sometimes influences his/her perception of an object"s distance .

- Families or Family systems : Families or Family systems refers to an organized structure that almost always provide a key context that influences their members' experiences of loss , grief and mourning. Family systems may be enmeshed or disengaged; permissive or restrictive, supportive or unsupportive in such matters as loss, grief and mourning.

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