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Concept
Pointing
Summary
Pointing is a gesture specifying a direction from a person's body, usually indicating a location, person, event, thing or idea. It typically is formed by extending the arm, hand, and index finger, although it may be functionally similar to other hand gestures. Types of pointing may be subdivided according to the intention of the person, as well as by the linguistic function it serves.
Pointing typically develops within the first two years of life in humans, and plays an important role in language development and reading in children. It is central to the use of sign language, with a large number of signs being some variation on pointing. The nature of pointing may differ for children who have autism or who are deaf, and may also vary by gender. It is typically not observed in children who are blind from birth.
Pointing may vary substantially across cultures, with some having many distinct types of pointing, both with regard to the physical gestures employed and their interpretation. Pointing, especially at other people, may be considered inappropriate or rude in certain contexts and in many cultures. It is generally regarded as a species-specific human feature that does not normally occur in other primates in the wild. It has been observed in animals in captivity; however, there is disagreement on the nature of this non-human pointing.
The primary purpose of pointing is to indicate a direction, location, event or thing relative to a person. Pointing is typically defined as having either three or four essential elements:
Extension of the index finger;
Flexing the remaining fingers into the palm, possibly with the thumb to the side;
Usually, but not always, the pronation of the palm to face downward, or to face the mid-line of the body; and
Extension of the arm.
Gestures that do not meet these three or four criteria are usually classified as a "reach" or an “indicative gesture”, although there is no clear consensus on how to differentiate between the two.
Official source
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