Chapter 7A Flashcards
sleep deprivation
sleep deprivation
a state caused by inadequate quantity and or quality pf sleep. bot are equally important
sleep quantity
sleep quantity refers to the amount of sleep/hours of sleep, objective measures
sleep quality
sleep quality refers to the type of sleep experiences, and any sleep disturbances. subjective measures
two categories of sleep deprivation
- total/full deprivation
- partial sleep deprivation
total/full sleep deprivation
involves having no sleep within a 24 hour period or across several days
partial sleep deprivation
involves having less sleep that what is normally required. most sleep disorders are associated with partial sleep deprivation that occur routinely over a prolonged period
the effects of sleep deprivation
- Affective
- behavioural
- cognitive
affects effects of sleep deprivation
Affective functioning: emotional functioning and responses
affective functioning examples
- irritability
- inappropriate emotional reactions (more snappy, overact to small things)
- depressed mood
- more anxious
- inaccurately perceive others emotions
behavioural effects of sleep deprivation
Behavioural functioning: ability to control behaviours and reactions
behavioural effects examples
- reduced motor control (clumsiness)
- slow reaction times (reduced speed)
- fatigue/lack of energy
- sleep inertia: performance impairment that occurs immediately after awakening
- excessive sleepiness
- inattentiveness
cognitive effects of sleep deprivation
Cognitive functioning: ability to control cognitions/thoughts
cognitive effects examples
- decreased ability or inability to concentrate, reduced alertness
- high error rater on cognitive task (math problems, logical reasoning)
- reduced ability to cope with and make decisions under stress
- illogical or irrational thoughts
- increased errors in simple, repattitve task
- impairments on learning and memory task
sleep debt
sleep that is owed and needs to be made up. Described as the difference between
the amount of sleep needed to function at an optimal level and the amount a person actually
gets.
of diseases and health problems, including
obesity, diabetes and various cardiovascular diseases. It is also associated with an increased
risk of accident and injury in people of all age groups.
blood alcohol concentration (BAC)
A measure of how much alcohol is in a person’s
bloodstream
Alcohol is a depressant drug - it will slow down the
nervous system, decrease alertness, concentration,
reflexes etc
* The higher the BAC, the more a person’s cognition
and affect might be impaired (an ASC)
The effects of higher BAC’s are similar to sleen
deprivation
- 24 hours of sleep deprivation has effects on performance equivalent to or worse than an individual
with a BAC of 0.10%.
Cognitive effects of sleep deprivation compared to BAC
- Cognition – the ways individuals process and understand information from the world.
Cognitive impairments can include: - slower mental processes, such as reduced speed in processing and understanding information
- decreased ability to reason and problem solve
- greater difficulty making sense of the world
- reduced ability to make decisions quickly and effectively
- cognitive distortions
Affective effects of sleep deprivation compared to BAC
sleep deprivation negatively affects someone’s mood/affect, making them more irritable or sensitive.
* Alcohol, on the other hand can have a range of effects on
someone’s emotions, making them feel happy and
excited, or alternatively more angry or sad.
* While sleep deprivation and alcohol consumption can
have different effects, they both alter someone’s
affective functioning when compared to how they might
typically experience emotions.
