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Dendrites
Receives message
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How is a message sent
- 1. Dendrite reveives message
- 2. Message reaches the axon hillcock
- 3. Once fired, the messages speeds across the axon due to myelin.
- 4. Message jumps from one Node of Ranvier to the mext thru Saltatory conduction5. Message reaches the terminal buttons and crossed the synaptic cleft.
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How is the massage sent?
An electrochemical imulse tht travels across the neuron is known as the action potential.
Action potential moves info across the neuron.
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Repolorization
K+ leaves and begins to exit membrane
-
Hyperolarization
Occurs when too much K+ leaves membrane
Membrane returns to resting stage.
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Synapse
- Made up of presynaptic endings. (Axon buttons) Synaptic cleft & Postsynaptic endings. (Receptor sites of neighboring axons)
- At the synaptic Cleft:
- Neurotransmitters stored in vesicles are secreted into the synaptic cleft.
- Neurotransmitters are like keys and only fit certain receptor sites (locks)
- The msg is electro-chemical, a combination of electric impulse which releases chemical neurotransmitter to cont msg.
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Terminall button contains vesicles which hold ___
Neurotransmitters (chemical msgs)
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Preoperational Stage Age
2-7
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Concrete operational stage age
7-11
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Formal operational Stage Age
11 yrs and up
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Sensorimotor Stage Milestones
Object permanance- Awareness that an object still continues to exist even when it is not present.
-
Preoperational Stage Milestones
Egocentrism
Anim ism- everything has some sort of conscience
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Co0ncrete operational Milestones
Conservation
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Formal Operational Milestones
- Scientific reasoning
- POtential to make moral judgements
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Law of similarity
Grouping like w like
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Law of Proximity
Grouping due to closeness of objects to each other
-
Law of good continuation
Grouping things so they seem to continue
-
Law of Pragnanz (closure)
Grouping that gives the perception of the simplest objects possible.
(Triangl in circles EXAMPLE)
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Dysomnias
- Sleep Apnea
- Circadian Rhythm Sleep disorders
- Hypersonmia
- Insomnia
- Narcolepsy
-
Apnea
- Stop breathing
- Emergency hormones cause a person to wake in order to begin breathing.
-
Circadian Rhythm DisrodersTypes
- Sleep wake cycle is not in sync w the sched imposed by their environment.
- Types:
- Delayed sleep phase rest
- Jet lag
- Shift work type
- Unspecified type
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Hypersomnia
Excessively deep or prolonged sleep cycle
-
Insomnia
- Difficulty in initiating or maintaining sleep.
- * People seem to overestimate amount of sleep lost.
-
Parasomnias Types
- Nightmare disorder
- REM sleep behavior disorder
- Sleep terror disorder
- Sleep walking disroder
-
Nightmare Disorder
- Frightening dreams recurrently
- Repeated awakenings w vivid detail
- Awakwening occur during second half of sleep
- Person is oriented and alert upon awakening
-
REM Sleep behavior disorder
- Paralysis that norally occurs during seep is absent
- Act out dreams
-
Sleep Terror Sidorder
- Recurrent episodes of abrupt awakening w a cry of terror. FEAr behavior
- May not respond to confort
- Difficulty to arouse
- Little or no knowledge of dream after awakening
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Depressants
- Tranquilizers
- Barbituates
- Inhalants
- Alcohol
-
Opiates aka Narcotics
- Diminish physiccal sensation and capacity to respond to stimuli by depressng the CNS.
- Codeine
- Heroin
- Morphine
Methadone
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Stimulants
- Increase alertness
- Amphetamines
- Cocaine
- Nicotine
- Caffeine
Typically cause a release of norepinephrine, dopamine, epinephrine, and serotonin.
-
Hallucinogens
- Psychedelics- main effect is to change perceptual experience.
- LSD
- PCP
- MDMA
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Cannibis
- Psychoactive
- MArijuana
- Hashuish
- THC
-
Contnuous Schedule
(Feeding)
-
Reinforcement is provided each time a behavior is made
Weakes behacioral response
-
Fixed Ratio FR Schedule
(WOrk)
Reinforcement provided after a fixed # of responses.
The higher the ratio the higher the num of responses
Less prone to extinction than continuous
-
Fixed Interval FI Schedule
Mail Box
- Organism is reinforced to its response after a crtain amount of time has passed since its last renforcement.
- F12 = reinforcement occurs after 2 mins
- Organism will pause after reinforcement
- Increase in amount of responding as end of interval approaches.
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Variable interval VI Sched
(Phone)
- Reinforcement depends on certain intervals having elapsed.
- Intervals duration varies unpredictably.
-
Variable Ratio VR Schedule
Slot Machines
Car sales man
- # of responses needed to receive reinforcement varies each trial.
- No pauses in responding
- generate high rates of respoinding.
- Minimal extinction
-
3 types of memory
- Sensory
- Short term
- Long Term
-
Short term memory
(Working)
- 7 items or less (Chunking for more memory)
- Readily available
- Be abel to recall convo till its over
- 10-15 secs to 1 min
-
Sensory
- Shortest term
- Look at something for a sec and remember what it looked like.
- (Stimuli ...5 senses)
-
Long Term
- Lifetime
- U don't forget it.
-
Explicit Memory
- Can be consciously recalled
- 911 Particular time
- Conscious
* Knowing WHAT
-
Implicit Memory
- Info of various sorts
- Riding horse, flying a plane.
- Unconscious
-
3 Stages of memory
- Encoding Stage
- Storage Stage
- Retrieval Stage
-
Encoding Stage
- Environmental info translated into meaningful entity
- Failure means not prperly encoding into to begin w
-
Working memory Span
7 give or take 2
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Noun
- Person
- Joel rides horses
- (Joel)
-
Verb phrase
Joe rides horses
- action
- Joes rides horses
- (Ride horses)
-
The hungry dragon ate soup
- the hungry dragon-Noun phrase
- Ate soup- verb phrase
- Dragon- subject
-
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Genetic Facrots of Obesity
10%
-
Components of Emotion
- Cognitive appraisal
- Subjective experience
- Thought and action tendencies
- Internal bodily changes
- Facial ExpressionsResponse to emotion
-
Cognitive appraisal
A persons assessment of the personal meaning of his or her current state.
-
Subjective Experience
the effective state or feeling tone that the emotion brings.
-
Thought and action tendencies
Urges to think and act in certain ways.
-
Internal bodily changes
Phsiological responses, especially those involving the autonomic system such as changes in sweat gland and heart rate activity.
-
Facial Expressions
- –Muscle contractions that move
- facial landmarks – like cheeks, lips, nose, and brow – into certain
- configurations
-
Response to emotion
- –How people regulate, react to, or
- cope with their own emotion or the situation that triggered it
-
(IQ) = Mental age
(MA)/Chronological age (CA) x 100
–IQ = MA/CA x 100
•Under 70 [mentally retarded] --2.2%
•70-80 [borderline retarded] --6.7%
•80-90 [low average] -- 16.1%
•90-110 [average] -- 50%
•110-120 [high average] -- 16.1%
•120-130 [superior] -- 6.7%
•Over 130 [very superior] -- 2.2%
•If Randall’s MA is 17 and his CA is 38, what
is his IQ? 44
•If Rachel’s MA is 44 and she is 35, what is
her IQ? 126
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Spatial
- The ability to perceive visual or spatial information,
- modify it,
- and recreate visual images
- without
reference to - original stimulus. 3-D rotation.
-
bodily Kinesthetic
- The ability to use all or part of the body to solve problems or fashion products;
- includes control over fine and gross motor action and ability to manipulate external objects
-
Intrapersonal
The ability to distinguish among one’s own feelings, intentions, and motivations
-
Interpersonal
The ability to recognize and make distinctions among other perople’s feelings, intentions, and motivations
-
Internal conflicts Types 4
- Independence vs.Dependence
- Intimacy vs.Isolation
- Cooperation vs.Competition
- Expression of impulses vs. Moral standards
-
Independence vs.Dependence
Do we let others take care of us or care for selves?
-
Intimacy vs.Isolation
Do we get close tosomeone or stay away because we can be hurt?
-
Cooperation vs. Competition
Do we help or compete?
-
Expression of impulses vs. Moral standards
Do we act out our urges or follow the cultural standards?
-
Social Facilitation: Coaction
•The interaction between individuals performing the same task
- –Occurs in both animals and humans
- Children wind a fishing reel
- faster when other children are performing the same task
-
Social Inhibition
- •Derailingeffects of coactors and audiences on an
- individuals performance
- –Speed and accuracy of performance
- is impaired for complex or poorly learned tasks
- •Roaches run easy route more quickly, but complex route more slowly when watched by other roaches
-
Social Loafing
- •When an individual’s contribution to a collective activity cannot be evaluated, individuals often work less hard than they would alone.
- –E.g. noise produced by each person cheering decreases asgroup size increases
-
Bystander Effect
•People are less likely to help in a situation when others are present
-
Pluralistic Ignorance
- Defining the situation as a nonemergency.
- •Everybody in group misleads everybody else by defining the situation as a nonemergency
-
–Diffusion of responsibility to act
•Because each person realizes others are present, the burden of responsibility does not liesolely with him/her
-
Informational Social Influences
•We conform because we believe other people’s interpretations of an ambiguous situation are more correct than our own
-
Normative Social Influences
- •We conform to a group’s social norms or typical behaviors to become liked or accepted
- –Social norms = Implicit rules or expectations that dictate what we ought to think or how we ought to behave
- DINNER TABLE
-
Minority Influences
•In groups, minorities can move majorities toward their point of view if they present a consistent position without appearing rigid, dogmatic, or arrogant
-
Effective Minotity Influence
- –Forceful
- –Consistent in its position
- –Flexible in style of presentation
- –Otherwise similar to majority
- –Not appear to be driven by self-interest
-
15,
16
18
20
30
32
33
70
85
90
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