Circumstance factor and altruism motivation

The Point out altruism behavior may happen in two kinds circumstance that one is uncritical circumstance another is critical circumstance.Analyze the different circumstance that make influence for altruism motivation in activation level,directional goal,maintain function;Generalize may have altruism motivation under the two kind circumstance condition including:reward motivation,avoid punish motivation,reciprocal motivation,social duty standard motivation,sympathy motivation,oneself sacrifice motivation.