ระบบความจำ, กระบวนการและการลืม
แนะนำใหม่| English | ความหมาย |
|---|---|
| working memory/ˈwɜːkɪŋ ˈmeməri/ | ความจำขณะทำงาน |
| proactive interference/prəʊˈæktɪv ˌɪntəˈfɪərəns/ | การรบกวนแบบเดิม |
A decision before an answer
- A letter array masked within 300 milliseconds reveals a store that is nearly photographic and almost instantly gone.
- Your goal: Order the memory stores by duration and capacity.
Order the stores
- The modal model orders stores by duration. Sensory memory holds a brief, nearly complete trace — iconic for vision, echoic for hearing — and a mask within 200–300 ms destroys it.
- Short-term or working memory holds a few chunks for seconds; Miller's classic estimate is 7±2 chunks, and rehearsal keeps material active. Long-term memory is durable and effectively unlimited.
A letter array masked 250 ms after presentation is poorly reported. The store revealed by this masking sensitivity is:
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The brief, mask-sensitive iconic trace is sensory memory.
Open the working system
- Baddeley's model has a central executive with a phonological loop for speech-like material and a visuospatial sketchpad for images.
- Chunking recodes items into familiar units, expanding effective capacity without expanding the store.
After switching from one textbook to a similar new one, old definitions keep intruding on the new ones. This is:
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Old learning disrupting new is proactive interference; new disrupting old would be retroactive.
Sort the long-term types
- Long-term memory divides by content and awareness. Episodic memory is personal events; semantic memory is facts and knowledge; procedural memory is skills.
- Implicit memory shows in performance without deliberate recall (priming, skills); explicit memory is deliberate recall or recognition. A person can show priming for material they cannot consciously recollect.
A masked letter array is lost within 300 ms — sensory memory. Remembering a phone number by 3-4 digit chunks uses chunking in working memory. Recognising a face without recalling the meeting is implicit memory. After learning French then Spanish, French vocabulary intrudes into Spanish recall: proactive interference.
Miller's classic estimate of short-term capacity is 7±2 ____.
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Capacity is measured in chunks, so chunking expands effective capacity.
Explain the forgetting
- Proactive interference is old learning disrupting new; retroactive interference is new learning disrupting old.
- Retrieval failure follows encoding specificity: cues matching the encoding context restore recall. The serial position curve (primacy and recency) separates long-term from immediate-store contributions.
Treating working memory as a single box, or calling every memory failure decay; interference and cue-dependent retrieval failure account for most exam cases.
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เรียงลำดับหน่วยความจำตามระยะเวลาและความจุ
Implicit memory requires deliberate conscious recall.
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Implicit memory appears in performance (priming, skills) without deliberate recall.
Keep the distinctions
- working memory 工作记忆 — The limited active system holding and manipulating a few chunks for seconds.
- proactive interference 前摄干扰 — Older learning disrupting the retention of newer material.
- Order the memory stores by duration and capacity.
- Distinguish memory types by content and awareness.
- Explain forgetting through interference and retrieval failure.
Match each term with its precise meaning in this lesson.
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Keep the distinctions stated in the teaching example.
Put this lesson’s reasoning or event sequence in order.
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The order follows the stated process; check each stage before the next.