IELTS Listening · Part 4 · Academic lecture

Sleep and memory

Level C14 min

Show format & tips

Format

  • 10 questions, usually note or summary completion
  • Academic vocabulary, longer sentences
  • The notes follow the structure of the lecture

Question types

Note completionSummary completionFlow-chart completion

Tips

  • Use the headings in the notes to keep your place in the lecture.
  • Signpost words tell you a new point is coming: "Turning now to…", "Another reason is…".
  • The answer is usually a word the speaker actually says — you rarely need to change its form.
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In the real test you hear the recording ONCE. Press play when you are ready.

Sleep and memory — Deep sleep

Complete the notes below. Write ONE WORD ONLY for each answer.

  1. 31
    Many people see sleep as time, but the brain is very busy
  2. 32
    During deep sleep, the replays what we learned that day
  3. 33
    Memories are then moved to the for long-term storage
  4. 34
    Comparison: moving files from a cluttered into an archive

Evidence

Complete the notes below. Write ONE WORD AND/OR A NUMBER for each answer.

  1. 35
    Students who missed a night's sleep were about % worse at forming new memories

REM sleep

Complete the notes below. Write ONE WORD ONLY for each answer.

  1. 36
    Later in the night, during dreaming or sleep, new information is linked with old
  2. 37
    This seems to boost
  3. 38
    Historians are about the story of Mendeleev's dream

Practical advice

Complete the notes below. Write ONE WORD AND/OR A NUMBER for each answer.

  1. 39
    Review difficult material shortly before going to
  2. 40
    A nap of around minutes can sharpen your focus
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