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Anthropologists search for the invisible guidelines of a given culture by looking for patterns , symbols , implicit / explicit expressions , and manifest / latent functions . To people disturbed by the authentic music produced by students — much of it exploratory — individual expression is not what these school values and social conventions support . The voice is explored in such a way as to contact and harness the sources of energy hidden deep in the body and connect this energy to physical / vocal expression as applied to the sung-spoken word . Among the population with high nuclear : cytoplasmic expression , only 45 % of cases were represented in the high nuclear population . " " We " people also like to be recognized for their individual value and achievement , but they express themselves most happily within the context of greater values , such as shared achievement , cultural / aesthetic expression or human services ( altruism is defined as " unselfish concern for or devotion to the welfare of others " ) .