Forgetting to remember: The functional relationship of decay and interference
Forgetting to remember: The functional relationship of decay and interference
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DOI：
10.1111/1467-9280.00405
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发表时间：
2002-01-01
影响因子：
8.2
通讯作者：
Gray, WD
中科院分区：
文献类型：
--
作者：
Altmann, EM;Gray, WD
功能衰退理论认为，衰退和干扰，历史上被视为遗忘的竞争账户，而是功能相关的。该理论假定：（a）当一个属性必须在内存中频繁更新时，它的当前值会衰减，以防止与以后的值发生干扰;（B）衰减速率会适应内存更新的速率。该理论的行为预测在任务切换范式中进行了测试，其中当前任务的记忆必须每隔几秒更新一次，重复数百次。反应时间和错误率都在更新之间逐渐增加，反映了当前任务的记忆衰退。当更新频率较低时，这种性能下降较慢，反映了更新速率降低后衰减速率的降低。控制衰减的候选机制提出，数据与实践效果相协调，并讨论了执行控制模型的影响。
Functional decay theory proposes that decay and interference, historically viewed as competing accounts of forgetting, are instead functionally related. The theory posits that (a) when an attribute must be updated frequently in memory, its current value decays to prevent interference with later values, and (b) the decay rate adapts to the rate of memory updates. Behavioral predictions of the theory were tested in a task-switching paradigm in which memory for the current task had to be updated every few seconds, hundreds of times. Reaction times and error rates both increased gradually between updates, reflecting decay of memory for the current task. This performance decline was slower when updates were less frequent, reflecting a decrease in the decay rate following a decrease in the update rate. A candidate mechanism for controlled decay is proposed, the data are reconciled with practice effects, and implications for models of executive control are discussed.