策略转换的成本与顺序效应

Strategy switch cost and its sequence effects

灵活的策略转换是个体有效地解决问题的重要条件。策略转换需要成本已得到大量证明,但策略转换成本是否为对称转换成本尚无定论。基于已有研究,对策略转换中存在策略顺序困难效应与较差策略顺序调节效应两种典型的顺序效应进行了具体介绍。在此基础上提出了不对称策略转换成本可能是对称转换成本与策略顺序困难效应之和的假设,并进而提出设想:可通过操纵时间变量来分离策略顺序困难效应与较差策略顺序调节效应。此外,从策略转换成本的角度创新地阐释了策略选择的惰性与倒退现象。

Flexible strategy switch is an important condition for individuals to solve tasks effectively. It has been fully proved that strategy switch needs cost, but whether the strategy switch cost is symmetric or not remains uncertain. Based on existing research, we introduced two typical effects, strategy sequentialdifficult effects and sequential modulations of poorer-strategy effects, then proposed a hypothesis that asymmetric strategy switch cost may be the sum of symmetry switch cost and strategy sequence difficulty effect, and further put forward the idea to separate strategy sequential difficult effects from sequential modulations of poorer-strategy effects by manipulating time variable. In addition, it made a new explanation of the inertia and setback of strategy choice from the angle of strategy switch cost.