Consciousness Flashcards
Accuracy
the precision with which a person completes a task p. 269
Alpha waves
medium sized brain waves with medium-high frequency and low-medium amplitude, indicating an alert but relaxed state p. 276
Altered states of consciousness (ASC)
a state of consciousness that is characterised by different levels of awareness as compared to normal waking consciousness p. 254
Amplified emotional response
disproportionate emotional reactions in response to an event or stimuli p. 319
Amplitude
a measurement indicating the intensity of an electric current in the brain, visually represented as the height of the wave peaks p. 275
Automatic processes
(also known as automatic tasks) tasks that require low levels of mental processing p. 259
Beta waves
fast, small brain waves with high frequency and low amplitude, indicating high levels of alertness p. 276
Blood alcohol concentration (BAC)
a measure of how much alcohol is in a person?s blood p. 325
Brain wave
a pattern of electrical current in the brain caused by neurons communicating, visually represented as a wave p. 274
Bright light therapy
a method used to adjust a person?s circadian rhythm through exposure to a high-intensity light source p. 345
Circadian phase disorder
a sleep disorder which interferes with the normal regulation of the circadian rhythm of sleep, leading to a change in the sleep-wake cycle p. 331
Circadian rhythm
changes to physiological function or activity that occur as part of a cycle that lasts around 24 hours p. 292
Cognition
the mental processes an individual performs in order to understand and process information p. 320, 326
Cognitive tasks
a form of assessment that measures some aspect of a person?s thought processes p. 269
Concentration
the ability to focus on certain stimuli or tasks p. 326
Consciousness
the awareness of internal and external stimuli p. 253
Consciousness continuum
a progression of states of consciousness ranging from least aware to most aware
Content limitations
a restraint placed on the thoughts that are occurring in a person?s mind p. 259
Controlled processes
(also known as controlled tasks) tasks that require high levels of mental processing p. 259
Delta waves
slow and large brain waves with low frequency and high amplitude, indicating very low levels of alertness p. 276
Depressants
a class of drugs that reduce central nervous system and body activity, reducing levels of alertness compared to NWC p. 277
Dyssomnias
sleep disorders characterised by consistent problems with falling asleep, staying asleep, or timing sleep p. 337
Electro-oculograph (EOG)
a device that detects, amplifies and records the electrical activity of the muscles surrounding the eyes p. 268
Electroencephalograph (EEG)
a device that detects, amplifies and records the electrical activity of the brain p. 267