Fedezd fel, hogyan működik az alvás, mi alakítja alvási szokásainkat, és mit mondhat el a kutatás az álmokról – és mit nem.
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Questions with solutions-
1. Válaszd ki a helyes választ.
Which evening habit would best support Elena's goal?
Bright evening light can delay the body's internal clock. Elena wants to start feeling sleepy earlier.
- Keeping bright ceiling lights on until she falls asleep.
- Dimming the room lights as bedtime approaches.
- Increasing her screen brightness during her bedtime routine.
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- Dimming the room lights as bedtime approaches.
Light is a timing signal for the body, not just something that helps us see.
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2. Válaszd ki a helyes választ.
Milyen észszerű következtetést vonhat le valaki abból, hogy a kávétól éberebbnek érzi magát?
Caffeine blocks some of the brain's signals for sleepiness rather than replacing sleep.
- They may feel more awake while still needing sleep.
- Their need for sleep has disappeared.
- Their body has already recovered from a short night.
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- They may feel more awake while still needing sleep.
A koffein hatása több órán át is tarthat, ezért a nap késői szakaszában történő fogyasztása az elalvást is megnehezítheti.
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3. Válaszd ki a helyes választ.
Mi ennek a csökkent izomaktivitásnak az egyik hatása?
During rapid eye movement (REM) sleep, the brain is active, but many muscles used to move the body have greatly reduced activity.
- It prevents the brain from producing vivid dreams.
- It keeps the sleeper's eyes completely still.
- It helps limit large body movements during dreams.
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- It helps limit large body movements during dreams.
A szemmozgások és a légzés akkor is folytatódnak, amikor sok más izom kevésbé aktív.
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4. Válaszd ki a helyes választ.
How would a period of sleep early in the night typically differ from one later in the night?
Deep non-REM sleep tends to be more common early in the night. REM periods generally become longer toward morning.
- The early period would usually contain more deep sleep, and the later one more REM sleep.
- The early period would usually contain more REM sleep, and the later one more deep sleep.
- Both periods would contain exactly the same proportions of each sleep stage.
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- The early period would usually contain more deep sleep, and the later one more REM sleep.
Sleep cycles repeat during the night, but their balance of stages changes.
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5. Válaszd ki a helyes választ.
Miért nem elég a gyors elalvás annak igazolására, hogy az alvás jó minőségű volt?
Alcohol may make a person feel sleepy at first, but it can disrupt sleep later in the night.
- The time spent falling asleep determines every aspect of sleep quality.
- Sleep quality also depends on what happens after sleep begins.
- Any substance that causes sleepiness also supports uninterrupted sleep.
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- Sleep quality also depends on what happens after sleep begins.
A rövid felébredések megszakíthatják az alvást akkor is, ha az illető másnap reggel nem emlékszik rájuk.
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6. Válaszd ki a helyes választ.
What is the most realistic expectation for Saturday?
During the week, Ben regularly sleeps less than he needs. On Saturday, he plans to get extra sleep.
- One long night will reliably reverse every effect of the week's short nights.
- His body cannot benefit from extra sleep after several short nights.
- Extra sleep may help, but it does not guarantee full recovery.
Consider the difference between helping recovery and guaranteeing complete recovery.
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- Extra sleep may help, but it does not guarantee full recovery.
The effects of sleep loss can wear off at different rates. Regularly getting enough sleep is more reliable than depending on one catch-up night.
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7. Válaszd ki a helyes választ.
Which response best addresses this temporary effect?
Priya wakes from a long nap feeling briefly groggy. This temporary difficulty becoming fully alert is called sleep inertia.
- Giving herself time to become fully alert before starting a demanding task.
- Scheduling her most demanding work for the first moments after waking.
- Assuming that a longer nap will always prevent grogginess when she wakes.
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- Giving herself time to become fully alert before starting a demanding task.
Sleep inertia tends to be stronger after waking from deeper sleep, so a longer nap does not always mean an easier awakening.
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8. Válaszd ki a helyes választ.
Mit sugall ez a kora reggeli iskolakezdésről?
During adolescence, the body's preferred sleep schedule often shifts later. A teenager may struggle to fall asleep early even when tired.
- They prove that teenagers need less sleep than adults.
- They may conflict with teenagers' natural sleep timing.
- They automatically make teenagers feel sleepy earlier that evening.
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- They may conflict with teenagers' natural sleep timing.
A későbbre tolódott biológiai óra nem jelent kisebb alvásigényt; a tinédzsereknek általában több alvásra van szükségük, mint a felnőtteknek.
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9. Válaszd ki a helyes választ.
Melyik következtetést támasztja alá Leah beszámolója?
Leah says she almost never remembers a dream. Her friend concludes that she never dreams.
- She misses REM sleep on most nights.
- Her brain is less active during sleep than the brains of people who recall dreams.
- She recalls few dreams, but this does not show that she never dreams.
Valamit átélni és emlékezni rá két különböző dolog.
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- She recalls few dreams, but this does not show that she never dreams.
Az álomemlékek ébredés után gyakran gyorsan elhalványulnak, így az álmok felidézése nem ad teljes képet az álmodásról.
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10. Válaszd ki a helyes választ.
Miért kell az eszköz alvásfázis-besorolásait becslésként kezelni?
A wrist device uses movement and heart rate to label periods of light, deep, and REM sleep.
- It infers sleep stages from indirect signals rather than directly measuring brain activity.
- Each heart rate value identifies exactly one sleep stage.
- It records brain waves directly through the wrist.
Gondold át, mit mér valójában az eszköz.
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- It infers sleep stages from indirect signals rather than directly measuring brain activity.
A laboratóriumi alvásvizsgálatok az agyi aktivitást, a szemmozgásokat és az izomaktivitást együttesen használják az alvásfázisok azonosítására.
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11. Válaszd ki a helyes választ.
Which claim does this result support?
In a controlled study, two groups learn the same word pairs. After the same length of time, the group that slept remembers more than the group that stayed awake.
- Remembering a dream is necessary for retaining new information.
- Sleep can help people retain recently learned information.
- The content of a dream determines which information is retained.
The study measured memory performance, not dream content.
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- Sleep can help people retain recently learned information.
Better memory after sleep points to a benefit, but explaining the mechanism requires more than a difference in test scores.
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12. Válaszd ki a helyes választ.
Melyik következtetés nem megy túl azon, amit a bizonyítékok alátámasztanak?
Researchers have proposed that dreams may relate to memory or emotional processing. There is no scientific agreement on one main purpose of dreaming.
- Every dream contains a fixed message that researchers can decode.
- Because theories differ, dreams cannot have any function.
- Dreams may relate to several mental processes, but their full function remains uncertain.
A bizonytalanság sem egy általános érvényű magyarázatot, sem a funkció hiányát nem bizonyítja.
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- Dreams may relate to several mental processes, but their full function remains uncertain.
Egy lehetséges funkció vizsgálandó hipotézis, nem pedig az egyes álmok értelmezésére szolgáló általános érvényű szabály.