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Updated: Aug 15, 2026

Studying Food Reward and Motivation in Humans
Published on: March 19, 2014
The effects of frequency of social interaction and relationship closeness on reward allocation
1Department of Nursing and Health Services, The Hong Kong Polytechnic University, China. zxzhang@gsm.pku.edu.cn
Abstract:
In this study of how the frequency of interaction affects decisions on reward allocation, 320 Chinese adults were randomly assigned to 8 conditions and instructed to read a scenario describing 2 co-workers completing a task and obtaining a bonus. The 8 conditions differed in the type of relationships, the frequency of past interaction between co-workers, and the possibility of future interaction. Each participant was instructed to act as the allocator and to hypothetically allocate a monetary reward to the co-worker. The results indicated that both past interaction and future interaction between the co-workers significantly influenced the allocation decision. These results also suggested that the frequency of 2 individuals' past interaction can be predictive of the closeness of their relationship.
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