CH 7 Fatigue and Sleep Disorders

Question 1

List 4 consequences of persistent fatigue

Answer 1

1. decreased social engagement
2. less efficient in domestic tasks
3. less stamina at work
4. decreased energy

Question 2

What is psychological fatigue?

Answer 2

state of weariness r/t decreased motivation, prolonged mental activity or boredom that occurs in situations such as chronic stress, anxiety or depression

Question 3

What physiological fatigue?

Answer 3

caused by depletion of energy, hormones, neurotransmitters or reduced # of neural connections due to brain injury

Question 4

How is brain injury impacted in fatigue?

Answer 4

Possible that neuronal injury either diffuse or in the brain center controlling arousal, attention and response speed causes it. areas include RAS, limbic system, basal ganglia, etc.

Question 5

What is primary fatigue?

Answer 5

Fatigue that results directly from injury or diseases (TBI or MS)

Question 6

List 4 factors that contribute to secondary fatigue

Answer 6

1. pain
2. sleep disturbance
3. stress
4. emotional (anxiety and depression may cause sleep disturbance)

Question 7

What are the challenges of measuring fatigue?

Answer 7

Requires subjective self-reporting, difficult to measure objectively

Question 8

Describe the coping hypothesis

Answer 8

In order to maintain performance on cognitively demanding tasks overtime…expend greater effort. Possibly 2/2 impairments in attention and info processing

Question 9

List 4 strategies/lifestyle changes to decrease fatigue

Answer 9

1. decrease work hours
2. reduce distraction/multi-tasking
3. address psychological needs
4. implement strategies to prevent/manage overload and social challenges

Question 10

List 3 ways sleep disturbances impact the lives of people with TBI.

Answer 10

1. insomnia/hypersomnia
2. excessive daytime sleepiness
3. decrease time to fall asleep and increase night time awakenings

Question 11

How common are sleep disturbances in the TBI population?

Answer 11

30-80%

Question 12

List 3 possible causes of sleep disorders

Answer 12

1. depression
2. increase in slow wave sleep (? response to mechanical damage)
3. circadian regulation of melatonin syntheses may be disrupted which decreases REM

Question 13

List 4 strategies to treat daytime sleepiness and fatigue

Answer 13

1. sleep hygiene
2. possibly modafinil
3. possibly bright light treatment