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40 Cards in this Set
- Front
- Back
What does ACCAPECST stand for?
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Awareness, level of Controlled processes Content limitations Automatic processes Perceptual experiences Emotional awareness Cognotive abilities Self control Time orientation |
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Consciousness
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awareness of objects and events in the external world and of our own existence and mental experiences at any given moment |
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State of consciousness
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level of awareness of our internal state and external surroundings which determines how much information we will take in and respond to
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selective vs divided attention
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selective involves choosing and attending to a specific stimulus while excluding others while divided is the ability to distribute our attention and undertake two or more activities at once
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controlled process |
controlled requires a high level of mental effort and alert awareness to complete, tending to be serial (can only perform one at a time)
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automatic process
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automatic requires little conscious awareness and mental effort while tending to be paralell (can handle two or more tasks at once)
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acronym for brain waves and meaning
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Boys-beta Are-alpha Terrible-theta Dancers-delta |
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Beta brain waves
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low amplitude, high frequency associated with NWC and alert attention |
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Alpha brain waves
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low amplitude but higher than beta waves, high frequency but lower than beta waves associated with relaxed, wakeful state |
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Theta brain waves
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mixture of low and high amplitude, medium frequency associated with early stages of sleep |
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Delta brain waves
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highest amplitude and lowest frequency associated with deepest stages of sleep |
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acronym for methods of measuring alertness
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Detects Amplify Record Electrical activity of... |
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eeg
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detects amplifies and records the electrical activity of the brain
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eog
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detects amplifies and records electrical activity of the eye muscles
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emg
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detects amplifies and records the electrical activity of the muscles
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ecg
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detects amplifies and records the electrical activity of the heart
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sleep
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a regular occurring asc which is generally naturally induced and is characterised by loss of cconscious awareness
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atonia
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loss of muscle tone (muscle paralysis)
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hypnogogic
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the transition phase into sleep generally between alpha and beta waves |
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four features of consciousness acronym
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Personal Selective Continuous Changing |
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sleep wake cycle shift in adolescences
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hormonally induced (melatonine) shift of the body clock forward by 1-2 hours making adolescences sleepy 1-2 hours later
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sleep deprivation
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total- no sleep at all partial - less than what an individual usually gets |
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sleep debt
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when the body misses out on sleep the time accumulates which eventually has to be made up for
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microsleep
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very short period of drowsiness or sleeping the individual cannot recall that occurs while the person is awake
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purpose of sleep theory
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restorative- allows the body to replenish the stores of energy depleted during the day survival- sleep evolved to enhance survival by protecting the organism by making it inactive through the most dangerous part of the day when its most dangerous to move around |
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NREM
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approximately 80% of sleep, time when body recovers, tissue repair, removing waste products, four stages, adults 70-90 minutes |
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REM
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rapid eye movement, where most dreams occur & vivid, rem occurs more often and for longer periods each sleep cycle, beta waves, atonia, mental repair (consolidation for memory, strengthening neural connections)
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NREM stage 1
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drifting into and out of true sleep state, decrease in alpha waves, increase with theta hypnic jerks occur, if woken from may not think that sleep has occurred |
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hypnic jerk
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as a result of our muscles relaxing sometimes part of our body will spasm
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NREM stage 2
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light stage of sleep, mainly theta waves, sleep spindles occur (brief bursts of higher frequency brain wave activity), k complexes occur (bursts of low frequency, high amplitude), brain still responds to various external and internal stimuli
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NREM stage 3
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start of the deepest period of sleep, people are difficult to arouse, if woken groggy and disorientated, delta waves begin to appear (20-50%), as night progresses less time is spent in this stage
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slow wave sleep
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presence of delta waves (stage 3 and 4)
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NREM stage 4
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delta waves dominate 50%, deepest stage of sleep, muscles completely relaxed, as night progresses less time is spent in this stage
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physiological signs of sleep progressing
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heart rate drops, blood pressure drops, body temp drops and breathing rate slow and steady while muscles gradually relax
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sleep patterns over the lifespan
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from birth onward the amount of time spent sleeping gradually decreases as does the time spent in REM sleep
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newborn infant
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16 hours a day, 50%rem
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end of infancy
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12-13 hours, 25-30% rem
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end of childhood onset of adolescence
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9 hours, 20% rem
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late adulthood
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6-7 hours, one third rem
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elderely
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nrem sleep is mostly stage 2 shallow sleep
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