Stage 1 is when the sleeper may experience a hypnic jerk . Hypnic jerks are quite common in stage 1. Approximately 5-10 minutes. EEG pattern shows a decrease in ALPHA WAVE production as these brain waves are replaced by more irregular, medium frequency, THETA WAVES, which have a mixture of high and low amplitude.
What are the characteristics of stage I sleep?
Stage 1 non-REM sleep marks the transition from wakefulness to sleep . This stage typically lasts less than 10 minutes and is marked by a slowing of your heartbeat, breathing, and eye movements , as well as the relaxation of your muscles.
What are the characteristics of Stage 1 sleep psychology quizlet?
Characterised by small, irregular waves (a mixture of theta and alpha waves) this is a brief, transitional stage lasting between 5 to 10 minutes. marked by a decline in breathing and pulse rates, body temperature and muscle tension. This stage is often skipped after the first full sleep cycle.
Which of the following is a characteristic of stage 2 sleep quizlet?
Characterized by theta waves, which are even slower in frequency and greater in amplitude than alpha waves. Muscle activity decreases, and the person is no longer consciously aware of the environment. Theta waves continue but are interspersed with a defining characteristic of stage 2 sleep: sleep spindles .
What are the characteristics of stage I sleep quizlet?
Stage 1 is when the sleeper may experience a hypnic jerk . Hypnic jerks are quite common in stage 1. Approximately 5-10 minutes. EEG pattern shows a decrease in ALPHA WAVE production as these brain waves are replaced by more irregular, medium frequency, THETA WAVES, which have a mixture of high and low amplitude.
What are the 4 stages of sleep quizlet?
- REM. Rapid Eye Movement. ...
- NREM. Non-Rapid Eye Movement. ...
- Stage 1. Theta Waves (6 to 8Hz). ...
- Stage 2. Theta Waves (4 to 7Hz). ...
- Stage 3 and 4. Delta Waves (1 to 3Hz). ...
- Stage 5. Beta Waves. ...
- EEG. Electroencephalograph. ...
- Beta Waves. Waves when we are awake.
Which stage of sleep is the longest in adults quizlet?
On average, each successive period of REM sleep is longer than the one that preceded it. Therefore, the REM periods in the second half of the night become larger and larger, so that the longest REM period often occurs just prior to waking in the morning.
Which stage of sleep is most important?
Scientists agree that sleep is essential to health, and while stages 1 to 4 and REM sleep are all important, deep sleep is the most essential of all for feeling rested and staying healthy.
Which stage of sleep is associated with learning and memory?
Most dreaming occurs during this phase. If you wake with an awareness of having been dreaming, you likely awoke from REM sleep . REM sleep is a critical phase of sleep for learning and memory, a time when the brain consolidates, processes, and stores information.
What are the 5 stages of sleep and dreams?
- Stage 1 of non-REM sleep. When you first fall asleep, you enter stage 1 of non-REM sleep. ...
- Stage 2 of non-REM sleep. This is the stage where you are actually fully asleep and not aware of your surroundings. ...
- Stage 3 of non-REM sleep. ...
- Stage 4 of non-REM sleep. ...
- Stage 5: REM sleep.
What are the five stages of sleep in psychology?
During an ideal night's sleep, your body has enough time to go through four to five 90-minute cycles that sample different phases of sleep as the night progresses. In general, each cycle moves sequentially through each stage of sleep: wake, light sleep, deep sleep, REM, and repeat .
What are the 5 stages of sleep in psychology quizlet?
- Stage 1: -Light sleep~ Theta sleep (4-7 CPS) -Hypnic jerk. ...
- Stage 2: -Light sleep, theta waves (4-7 CPS) -slightly deeper stage of sleep. ...
- Stage 3: -Deep sleep, Delta waves (less than 4 CPS)
- Stage 4: -Purely delta waves (close to 1 CPS) -the deepest stage of sleep. ...
- Stage 5: -Rapid Eye Movement.
Which stage of sleep is the longest in adults?
In normal adults, REM sleep increases as the night progresses and is longest in the last one-third of the sleep episode. As the sleep episode progresses, stage 2 begins to account for the majority of NREM sleep, and stages 3 and 4 may sometimes altogether disappear.
Which stage of sleep is the deepest quizlet?
Stage 4 is mostly delta waves. It is the deepest stage of sleep.
How many stages of sleep are there quizlet?
Five stages of sleep Flashcards | Quizlet.
What is Stage 2 of sleep called?
Sleep begins with NREM stage 1 sleep. NREM stage 1 progresses into NREM stage 2. NREM stage 2 is followed by NREM stage 3. NREM stage 2 is then repeated. Finally, you are in REM sleep .
