Sleep

Sleep deprivation studies show that changes to an individual’s ability to function in normal waking consciousness start to become noticeable after about __________ days without sleep, and usually involve performance deficits on ________ tasks.

• three; challenging

• seven; routine

• seven; challenging

• three; routine

The stages of sleep are classified into two distinct basic types characterized by

• body temperature

• breathing rates.

• rapid eye movement vs non-rapid eye movement

• the ability of the sleeper to quickly respond to stimulus

The stages of sleep are differentiated from each other by

• varying levels of adrenaline found in the blood

• varying patterns of brain activity

• whether you are dreaming or not.

• your core body temperature

A hormone released by the pineal gland that increases feelings of relaxation and tiredness

• dopamine

• melatonin

• SCN

• serotonin

What percentage of their life time does a person spend asleep?

• 1/3

• 1/9

• 1/10

• 1/100

The pattern of physical and behavioral changes that follows a 24 hour cycle, in accordance with the hours of light and darkness.

• REM

• NREM

• circadian rhythm

• ultradian rhythm

During this stage of sleep, you drift in and out of sleep and can be easily awakened.

• Stage 1

• Stage 2

• Stage 3

• Stage 4

During this stage of sleep, muscle activity and eye movements completely stop, and you become difficult to awaken.

• Stage 1

• REM

• Stage 2

• Stage 4

How many sleep stages do we go through 

• 2

• 3

• 4

• 5

Beta like waves or sawtooth waves are characteristic of a person who is:

• Dreaming

• asleep but not dreaming

• Awake and alert

• in stage one sleep