Chapter 5 Consciousness

Question 1

Consciousness

Answer 1

Is the state of being aware. Reflection, not just action.

Question 2

Circadian Rhythm

Answer 2

Predictable hormone, temperature, and wakefulness levels that are synchronized with parts of the day.

Question 3

Sleep Cycle

Answer 3

Brain sends slow and regular alpha waves while awake. Stage 1: 5 mins of hypnogogic sensations and erratically slower waves. Stage 2: 20 mins long with sleep spindles. Stage 3 & 4: slow-wave sleep. Move back to stage 2 and experience REM.

Question 4

Sleep Apnea

Answer 4

People stop breathing intermittently during sleep. Lack of oxygen wakes them long enough to get a snort of air.

Question 5

Dream Theories:
Freud
Activation-Synthesis
Information-Processing

Answer 5

Freud: dreams hid latent content that would wake the dreamer. Activation-synthesis: as random neurons fire, we try to make sense of images. Information-processing: dreams consolidate information and memories.

Question 6

Psychoactive Drugs

Answer 6

Depressants slow bodily and neural activity (i.e. alcohol, barbiturates, opiates). Stimulants increase neural and bodily activity. Hallucinogens distort perceptions and produce sensations that have no physical basis.