representations compete with each other for recall, degrading each other. Thereby, new content gradually replaces older content, unless the older content is actively protected.

Capacity

Whatever the cause(s) of short-term forgetting, consensus asserts that it limits the amount of retained new information short term. This limit is referred to as the finite capacity of short-term memory. Short-term memory capacity is often called memory span, in reference to a common measurement procedure.

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