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University of Alberta
University of Alberta
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The person's subjective experience of the world and the mind.
(after philoshopher Descartes) A mental screen or stage on which things appear to be presented for viewing by the mind's eye.
How things seem to the conscious person.
Problem of Other Minds
The fundemental difficulty we have in perceiving the consciousness of others.
The issue of how the mind is related to the brain and body.
Intentiality of Consciousness
One of Four Basic Properties of Consciousness; the quality of being directed toward an object.
Unity of Consciousness
One of Four Basic Protperties of COnsciousness; resistence to division.
Selectivity of Consciousness
One of Four Basic Properties of Consciousness; capacity to include some objects and not others.
A task in which people wearing headphones hear different messages presented in each ear.
Cocktail Party Phenomenon
A phenomenon in which people tune in one message even while they filter out others nearby.
Transience of Consciousness
One of Four Basic Properties of Consciousness; tendency to change.
A low level kind of sensory awareness and responsiveness that occurs when the mind inputs sensations and may output behaviour. (Between the mind and the world.)
Consciousness inwhich you know you are able to report your mental state.
A distinct level of consciousness inwhich the person's attention is drawn to the self as an object.
The attempt to change conscious states of mind.
The conscious avoidance of a though.
Rebound Effect of Thought Reppression
The tendency of a thought to returen to consciousness with greater frequency following supression.
Ironic Processes of Mental Control
Mental processes that can produce ironic errors because monitoring for errors can itself produce them.
An active system encompassing a lifetime of hidden memories, the person's deepest instincts and desires, and the person's inner struggle to control these forces.
A mental process that removes thoughts and memories from consciousness.
The mental processes that give rise to the person's thoughts, choices, emotions, and behaviour even though they are not experienced by the person.
A thought or behaviour that is influenced by stimuli that a person cannot consciously report perceiving.
Altered State of Consciousness
Forms of experience that depart from the normal subjective experience of the world and the mind.
The pre-sleep consciousness in which task-oriented thoughts of the waking mind are replaced by wandering thoughts and images.
A sudden quiver or sensation of dropping, as though missing a step on a staircase during sleep.
The post-sleep consciousness when the waking consciousness returns again in a foggy and imprecise form.
A naturally occurring 24-hour cycle. (Sleep cycle.)
A stage of sleep characterized by rapid eye movement and a high level of brain activity. (Fast and random waves.)
An instrument that measures eye movement.
Stage One Sleep
Stage Two Sleep
Sleep Spindles and K complexes
Stage Three and Four Sleep
Delta waves. The deepest stages of sleep and known as the slow-wave sleep.
Difficulty in falling asleep or staying asleep.
A disorder in which the person stops breathing for brief periods while asleep.
(Sleep walking.) Occurs when the person arises and walks around while asleep.
A disorder in which sudden sleep attacks occur in the middle of waking activities.
The experience of waking up unable to move.
Abrupt awakenings with panic and intense emotional arousal.
A dream's apparent topic or superficial meaning.
A dream's true underlying meaning.
The theory that dreams are produced when the brain attempts to make sense of activations that occur randomly during sleep.
A chemical that influences consciousness or behaviour by altering the brain's chemical message system.
The tendency for larger doses of a drug to be required over time to achieve the same effect.
Substances that reduce activity of the central nervous system.
The idea that alcohol effects can be produced by people's expectations of how alcohol will influence them in particular situations.
Balanced Placebo Design
A study in which behaviour is observed following the presence or absence of an actual stimulus and also following the presence or absence of a placebo stimulus.
A condition that results when alcohol hampers attention, leading people to respond in simple ways to complex situations.
Substances that excite the central nervous system, heightening arousal and activity levels.
Narcotics or Opiates
Highly addictive drugs from opium that relieve pain.
Endorphins or Endogenous Opiates
Neurotransmitters that have a similar structure to opiates and that appear to play a role in how the brain copes internally with pain and stress.
Drugs that alter sensation and perception and often cause visual and auditory hallucinations.
The leaves and buds of the hemp plant.
An altered state of consciousness characterized by suggestibility and the feeling that one's actions are occurring involuntarily.
The failure to retrieve memories following hypnotic suggestions to forget.
The reduction of pain through hypnosis in people who are susceptible to hypnosis.
The practice of intentional contemplation.
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