Exam 5: Consciousness-Part C

Stimulant drugs increase the levels of dopamine and norepinephrine in the brain.

Sigmund Freud believed that unwanted thoughts and impulses were banished to the unconscious via the process of repression.

The unity of consciousness refers to the fact that consciousness flows like a river from one "right now" to the next.

People typically engage in mind wandering during nearly half of their daily activities.

The active psychoactive drug in marijuana is THC.

According to the activation-synthesis model,a dream begins with an underlying meaning but this meaning is lost due to the random neural activity of the sleeping brain.

The expectancy theory of alcohol effects suggests that drinking will cause you to behave as you have observed others behave in similar social situations involving alcohol.

Long-term use of benzodiazepines produces a psychological but not physical dependence.

Research has shown that the content of consciousness is dominated by the immediate environment.

The drugs that produce the most extreme alterations of consciousness are narcotics such as heroin.

Experiments by Libet revealed that our brains lead our minds and bodies,instead of our mind directing brain activity and behavior.

Somnambulism,or sleepwalking,is most common among children,peaking between the ages of 4 and 8.

THC binds to the same receptors as the naturally occurring neurotransmitter serotonin.

The primary visual cortex responsible for visual perception is active during REM sleep.

The deepest stage of sleep is stage 4 and is associated with delta-wave activity.

Laboratory rats will self-administer THC,the active compound in marijuana.

Episodic memories from the previous day are often replayed in considerable detail during dreams.

Mescaline comes from the peyote cactus.

Without cues to the time of day,the body will automatically adopt a rest-activity cycle of 8 hours.

In those who are susceptible to hypnosis,pain can be effectively controlled by using hypnosis as an analgesic.