Procedural memory
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Procedural memory, (also known as implicit memory and nondeclarative memory), is the long-term memory of skills and procedures, or "how to" knowledge.
As compared with declarative memory, it is governed by different mechanisms and different brain circuits. Procedural memory is often not easily verbalized, and can be used without conscious thought. (In contrast, declarative memory can generally be put into words.)
Examples of procedural learning are: learning to ride a bike, learning to touch type, learning to play a musical instrument or learning to swim. These skills are often learnt without conscious awareness or understanding of what is being learnt. Once learnt they are perfomed to some degree automatically with integrated smooth performance.
Such learning is usually slow and requires many repetitions for the memory to become secure.
Procedural memory can reflect simple stimulus-response pairing but usually involves associations of sequential stimuli that require the ongoing storage of information about predictive relationships between events so that this facilitates the smooth performance of the skill under fluctuating conditions. Think about riding a bike over rough ground on a windy day. The memory for the sequence of bike riding movementss has to be integrated with predictions from memory about the ground and the environment.
Procedural memory can be very durable. Once you have learnt to ride a bike do you forget?
Studies of people with certain brain injuries (such as damage to the hippocampus) suggest that procedural memory and episodic memory use different parts of the brain, and can work independently. For example, some patients are repeatedly trained in a task and remember previous training, but do not improve in a task (functioning declarative memory, damaged procedural memory). Other patients put through the same training can't recall having been through the experiment, but their performance in the task improves over time (functioning procedural memory, damaged declarative memory).
- Main article: Neurobiology of procedural memory
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- Cavaco S., et. al. (2004). The scope of preserved procedural memory in amnesia. Brain, Vol. 127, No. 8, 1853-1867. Full text
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| This page uses content from the English-language version of Wikipedia. The original article was at Procedural memory. The list of authors can be seen in the page history. As with Psychology Wiki, the text of Wikipedia is available under the GNU Free Documentation License. |
