How do levels of consciousness affect mental processes and behaviour? Flashcards
normal waking consciousness
a state of consciousness associated with being awake and aware of thoughts, feelings and perceptions from both the internal and external environment
altered state of conciousness
any state that is distinctly different from normal waking consciousness
define consciousness
an individuals level of awareness of internal events and their external environment, as an array of thoughts, feelings and perceptions
function of an EEG
Electroencephalograph: detects, amplifies and records electrical activity of the brain
function of an EOG
Electro-oculargraph: detects, amplifies and records electrical activity of the muscles surrounding the eyes
function of an EMG
Electromyograph: detects, amplifies and records electrical activity of skeletal muscles
an objective method of measuring consciousness
speed and accuracy on cognitive tasks
subjective measures of measuring consciousness
sleep diaries and video monitoring
how do controlled and automatic processes work during NWC
can complete multiple automatic processes at once, and an automatic and controlled at the same time, but very difficult to complete 2 controlled
the part of the brain that functions like a ‘biological clock’ and signals the release of melatonin and other hormones is the:
suprachiasmatic nucleus
the part of the brain that releases melatonin is the:
pineal gland
the function of melatonin is to:
induces drowsiness, lowers body temperature, and promotes sleep.
how do controlled and automatic processes work during an ASC
very difficult to complete controlled processes and divided attention is hard
factors that can determine an altered state of consciousness
levels of awareness, controlled and automatic processes, content limitations, perceptual and cognitive distortions, emotional awareness and self control
what are content limitations
the ability to control wha tis being thought about and stop unwanted or distressing thoughts
what brainwaves do stimulants normally produce
beta and sometimes alpha
what brainwaves do depressants normally produce
alpha and theta
examples of stimulants
nicotine, cocaine, methamphetamines and amphetamines, caffeine