PS101 - MIDTERM 2 Flashcards
Consciousness
Our immediate awarenesss of our internal and external states
Altered States of Consciousness
A change in a persons ability to be fully aware of their external surroundings and internal states
- These unclude; being asleep, having a dream, hypnosis, meditation
States of Consciousness
The level of awareness we have for our external surroundings and internal states
- E.g., being fully awake or asleep
Contents of Consciousness
Specific thoughts we are aware of about our internal states or external surroundings
- E.g., being aware of your dog, the itch between your hsoulder blades, and your need to go to the bathroom
Preconsciousness
Level of awareness in which information can become readily available to consciousness if necessary
- E.g., Bringing to mind what you had for lunch last Tuesday
Unconscious State
State in which information is not easily accessible to conscious awareness
- E.g., You see someone who used to bully you in highschool but, can not remember their name. Unexpectedly, their name comes to your conscious awareness minutes or days later
Explicit Memory
Involve pieces of knowledge that we are filly aware of
- E.g., knowing the date of your birth
Implicit Memory
Refers to knowledge we are not typically aware of, information we cannot recall at will, but that we use in the performance of various tasks in life
- E.g., reading, driving, playing an instrument, speaking a second language
Freuds Views of the Unconscious
- Believed majority of our personal knowledge is located in our inconscious and not readily accessible
- We repress such thoughs and memories that are to painful for consciousness
- Unconscious material can enter conscious awareness; Freudian slip: Slip of the tongue as a moment when the mind allows a repressed idea into consciousness
- Knowledge and memories stored in the unconscious maintain their ability to influence how we think, feel, and relate to others
Adaptive Theory of Sleep
Theory that organisms sleep for the purpose of self-preservation, to keep away from predators that are more active in the night
Resorative Theory of Sleep
Theory that we sleep to allow the brain and body to restore certain depleted chemical resources and elimate chemical wastes that have accumulated during the waking day
Circardian Rhythm
Pattern of sleep wake cycles that in human beings roughly corresponds to periods of daylight and night
Suprachiasmatic Nucleus (SCN)
A small group of neurons in the hypothalamus responsible for coordinating the many rhythms of the body
Hypnotic State
A pre-sleep period often characterized by vivid sensory phenomona
- Can experience falling, floating, name being called in this state
Hypnagogic Hallucinations
Experiencing strange sensations during hypnotic state like falling, floating, hearings name be called
Myoclonic Jerk
Sharp muscular spasm that accompanies the hypnagogic hallucination of falling
Sleep: Stage 1
- THETA WAVES
-Brain waves become smaller and irregular - Easy to be awakened. Stage lasts a few mins
Sleep: Stage 2
- SPINDLES
-Further slowing of brain activity, although we may exhibit sleep spindles - Body ocasionally twitces
- Still fairly easy to be awakened. Stage lasts 15-20 mins
Sleep Spindles
Bursts of brain activity lasting a second or two
- Occurs in stage 2 of sleep
Sleep: Stage 3
- DETLA WAVES appear; 20-50% of our EEG waves are delta waves
-Very deep sleep, slow waves
Sleep: Stage 4
- Mostly DETLA WAVES
- Heart rate, blood pressure, and breathing rates all drop to their lowest levels
- Muscles are mostly relazed, but people can be prone to sleep walking
Rapid Eye Movement Sleep (REM)
Stage of sleep associated with rapid and jagged brainwave patterns, breathing, increased heart rate, and dreaming
- Stage that comes after all four stages of sleep, the stages before this are called non-rem sleep or NREM
Non-REM Sleep (NREM)
Stages 1 through 4 of normal sleep pattern
Information Processing Theory
Hypothesis that dreams are the mind’s attempt to sort out and organize the days experiences and to fix them in memory
Activation-synthesis Model
Theories that dreams result from the brain’s attempt to synthesize or organize random internally generated signals and tries to give them meaning
Freudian Dream Theory
- Dreams represent the expression of unconsciousness wishes or desires
- Dreams have hidden meaning that pertain to our real life situation
Lucid Dreams
Dreams in which sleeps fully recognize that they are dreaming, and ocasionally actively guide the outcome of the dream
Insomnia
Sleep disorder characterized by a regular inhability to fall asleep or stay asleep
Sleep Apnea
Sleep disorder characterized by repeatedly ceasing to breathe during the night, depriving the brain of oxygen and leading to frequent awakenings
Excessive Daytime Sleepiness
Characterized by feelings drowsy or tired even after having a good nights sleep
Narcolepsy
SLeep disprder marked by incontrollable urge to fall asleep
Delayed Sleep Phase Syndrome
Characterized by a long delay in a personas ability to fall asleep as well as difficulty waking up at a desired time
Advanced Sleep Syndrome
People with this tend to fall asleep early in the evening, between 6-9PM and then wake up at early hours of the day between 2-5PM
Restless Leg Syndrome (RLS) and Periodic Limb Movements of Sleep (PLMS)
Disorders where individuals have strong urges to move their legs, usually in the evenings just prior to falling asleep, or during in the case of PLMS
Sleepwalking
- Most often takes place during the first 3 hours of sleep
- Can sit up, get out of bed, walk around
- Occurs during deep non-REM sleep (Stage 3 and 4)
Night Terrors
- Awaken suddenly, sit up in bed, scream in extreme fear and agitation
- Experience heightend heart and breathing rates
- Do not remember in the morning
- Occurs in stage 3 and 4 of sleep
REM Sleep Behaviour Disorder
Moving about vigorously in your sleep, acting out in a dream
- Common with aging and parkinsons
Hypnosis
A seemingly altered state of consciousness during which individuals can be directed to act or experience the world in unusual ways
Posthypnotic Responses
Behaviour that was suggested while hypnotized, but engaged later when a specific sign is observed
Post Hypnotic Amnesia
Hypnotist directs the person to later forget informatioin learned during hypnosis
Dissociation
A splitting of consciousness into two dimensions
- One part: Fully tuned into and responsive to the hypnotists suggestions
- Other part: Operates at a less conscious lvl continuing to processess info that is seemingly unavailable to the hynotized person
Psychoactive Drugs
Chemicals that affect awareness, behaviour, sensation, perception or mood
Addiction
Psychological or physical compulsion to take a drug, resulting from regular ingestion and leading to maladaptive patterns of behaviour and changes in physical response
Tolerance
Mark of physical dependence on a drug, in which the person is required to take incremently larger doses of the drug to achieve the same effect
Withdrawl Symtoms
Unpleasant and sometimes dangerous side effects of reducing intake fo a drug after a person has become an addict
Depressants
Class of drugs that slow the activity of the CNS
- Alcohol, sedative-hypnotic drugs
Alcoholism
Long term pattern of alcohol addiction
Sedative-hypnotic Drugs
Class of drugs that produces feelings of relaxation and drowsiness
Opioids
Class of drugs derived from the sap of the opium poppy
Stimulants
Substances that increase the acitivty of the CNS
- Caffine, nicotine, cocaine, amphetamines
Hallucinogens
Substances that dramatically change ones state of awareness, causingn powerful changes in sensory perception
- LSD, psilocybin (Magic mushrooms), mescaline, DMT, ketamine, PCP, canabis
Reward Learning Pathway
Brain circuitry that is important for learning about rewarding stimuli