CH5 - Sleep & Consciousness Flashcards
The inability to sleep is called..
Insomnia
Explain latent content
The underlying meaning of dreams, as theorised by Sigmund Freud.
What is manifest content?
The storyline of a dream
Describe the 4 stages of sleep
Stage 1 - small irregular waves
Stage 2 - sleep spindles
Stage 3 & 4 - deep sleep, slow delta waves
REM sleep: stage of sleep characterised by darting eye movements.
Describe the preconscious mental process
Memories that are not presently conscious but can be readily brought to consciousness if the need arose.
What is the difference between mindfulness and meditation?
Mindfulness - A state of focused awareness of all senses — thoughts, feelings and behaviours — without judgement and without reaction.
Meditation - Developing a deep state of tranquillity by altering the normal flow of conscious thoughts.
What are psychoactive substances?
Drugs that operate on the nervous system to alter mental activity.
Define circadium rhythm
A cyclical biological process that evolved around the daily cycles of light and dark.
Explain cognitive unconsciousness
Focuses on information-processing mechanisms that operate outside of awareness, such as procedural knowledge and implicit memory.
What is the process of focusing conscious awareness, providing heightened sensitivity to a limited range of experience requiring more extensive information processing?
Attention
What is it called when the usual conscious ways of perceiving, thinking and feeling are modified or disrupted?
Altered state of consciousness
Name the process in which people divert attention from information that may be relevant but emotionally upsetting.
Selective inattention
What do stimulants do?
Increase energy, alertness and autonomic activity
Explain subliminal perception
Perception of stimuli below the threshold of consciousness.
Describe the unconscious mental process
Memories in the unconscious are inaccessible to consciousness because they would be too anxiety provoking to acknowledge and thus have been repressed.