Psych Unit 4 Consciousness

What are the two aspects of consciousness?

• Alertness and wakefulness

• Awareness and control

• Memory and alertness

• Wakefulness and awareness

The ability to focus awareness on specific features in the environment while ignoring others is termed as:

• sustained attention

• focused attention

• selective attention

• Stroop effect

Which hormone plays a role in relaxation and drowsiness in human beings?

• Serotonin

• Dopamine

• Melatonin

• Cortisol

Which scan would give us a view of the brain waves occurring during sleep?

• EEG
• MRI
• PET
• CAT

The dreams we remember come during which sleep stage?

• stage 1 NREM
• stage 2 NREM
• stage 3 NREM
• REM

Spans from lighter stages to a much deeper, more restful kind of sleep; the person’s body is free to move around in this stage.

• Non-REM Sleep

• Rapid Eye Movement (REM) Sleep

The average sleep cycle is about ______ minutes

• 100

• 90

• 60

• 30

Which body rhythm occurs roughly once during a 24 hour period and regulates our wakefulness or sleepiness?

• Smithsonian

• Circadian

• Ultradian

• Infradian

In which stage are you the hardest to awaken?

• NREM1 - Stage 1

• NREM2 - Stage 2

• NREM3 - Stage 3 / 4

• REM

True or False: REM sleep periods become longer with each following sleep cycle.

• True

• False