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Chapter 8
Objectives
29
Physiology
Undergraduate 2
02/23/2011

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Term
REM sleep
Definition
Rapid Eye Movement. Part of sleep that is hardest to arouse a person and when most dreams occur. One must make up all REM sleep.
Term
Short term memory
Definition
Electrical activity and storage of incoming neural info for seconds to minutes.
Term
Long term money
Definition
Information stored in brain for prolonged periods and periods of protein synthesis.
Term
How is the frequency of EEG waves related to the persons state of arousal?
Definition
There are lower frequency waves in sleeping stages. There are high frequency waves when alert and also characteristics of REM sleep.
Term
How is amplitude of the EEG waves related to the persons state of arousal?
Definition
The waves have higher amplitudes as you go into deeper sleep. REM sleep has a desynchronous pattern.
Term
What are the two major categories of sleep?
Definition
NREM and REM
Term
Which type of sleep is described as restful?
Definition
NREM
Term
During which type of sleep is it most difficult to arouse a person?
Definition
REM
Term
During which type of sleep does dreaming typically occur?
Definition
REM
Term
During which type of sleep is muscle tone the least?
Definition
REM
Term
What are the stages of slow wave sleep?
Definition
Stages 1-4
Term
During which stage of sleep of slow wave sleep is it most difficult to arouse a person?
Definition
Stage 4
Term
REM rebound
Definition
Body willl make up every minute of REM sleep lost (and go into periods of sleep exclusively REM)
Term
How much time does a person speend in sleep?
Definition
8 hours
Term
How much of time spent in sleep is spent in REM?
Definition
20-25% of sleep
Term
How much time of sleep is spent in slow wave sleep?
Definition
4 or 5 cycles of 90-100 minutes
Term
How does sleep times change with aging?
Definition
It declines with age.
Term
In what brainstem structure are arousal and sleep producing centers located?
Definition
Reticular formation (reticular activating system)
Term
What subcortical system is involved with emotional behaviors, emotions, and motivations?
Definition
Limbic
Term
What neurotransmitter appears to play a central role in the activity of the 'reward' systems?
Definition
Dopamine (Mesolimbic dopamine pathway for reward)
Term
How are short term memories stored?
Definition
Stored as electrical charges.
Term
How is declarative short term stored?
Definition
In the hippocampus and other temporal lobes.
Term
How is procedural short term memory stored?
Definition
Widely distributed.
Term
How is long term memory stored?
Definition
Structural protein synthesis.
Term
How is declarative long term memory stored?
Definition
Areas of association cortex.
Term
How is procedural long term memory stored?
Definition
In the basal nuclei, cerebellum, and premotor cortex.
Term
Broca's Area
Definition
Ability to communicate and expression.
Term
Wernecke's Area
Definition
Comprehension and interpretation of communication.
Term
Location of Broca's and Wernecke's area
Definition
Left hemisphere of brain
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