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Psychology- Test One 2/25
A Study guide
128
Psychology
Undergraduate 1
02/22/2011

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Term
Theory
Definition
An explanation of a phenomenon (using an integrated set of principles that organisez or predicts observatoins)
Term
Hypothesis
Definition
A testable prediction, often implied by theory
Term
Four Goals of Psychology
Definition

1.Describe

2. Predict

3. Explain

4. Control/Change

Term
Descriptive Research Study: Case Study
Definition

- Study one or a few individuals in depth

-Frued

Term
Descriptive Research Study:Problems?
Definition
Usually Only a efw special cases. It is a problem of representation
Term
Descriptive Research Study:Research Methods: Naturalistic Observation
Definition
Observe people in their natural enviroment (ape in wild, child at home)
Term
Descriptive Research Study: Natrualistic Obsercation: Problems?
Definition

ADV: Naturally acting, you can observe many different people

DISADV: Can't control any of the other variables

Term
Descriptive Research Study:Survery Research
Definition

People report behavior, beliefs, or opinions.

EX: Phone surveys

Term
Descriptive Research Study: Survey Research: Problems?
Definition

ADV: Prestty large sample size, convienent

DISADV: Pepople may be dishonest and often have trouble getting responses. When you do get a response, does this response represent a whole? Also, interviewers or questions can be leading

Term
Sampling
Definition
A sample has to fairly represent a population because each member has an equal chance of being included in the study
Term
Once we collect data, what do we do with it?
Definition
Use Statistics to interpret descriptive data
Term
Central Tendency
Definition

- Mean: average of scores

- Mode: Average of scores

- Median: Median score

Term
Range
Definition
Gap between the lowest and highest scores
Term
Standard Deviation (SD)
Definition
How much scores deviate from the mean and from eachother
Term
Frequency Distribution
Definition

-Organizes data in a score distribution so taht we know the frequency of each score (How much each score occured)

- x axis- whatever you are counting

- y axis- number of data points

Term
Normal Distribution
Definition
MOst are close to average spike while others are at either extremes
Term
Skewed Distributions
Definition

Are asymmetrical in shape

- Negatively Skewed distribution- Distribution lower than median, bell curve to the right

-Positively Skewed distribution- Distribution higher than mean

Term
Predicting Behavior: Correlation methods
Definition

Involves measuring variables that are already in place

- Could use descriptive methods to get data

- How much one variable predicts the other

Term
How do we measure correlational reasearch?
Definition
Plot each data point in a Scatterplot
Term
When reading a Scatter Plot, what do we look for?
Definition

1. Direction of scatter

- Tells us whether realtionship between two variables is positive (upward sloping) or negative (downward sloping)

Term
When reading a Scatter plot, what do we look for?
Definition

2. Amount/ spread of scatter (suggests strength of relationship)

- Little scatter: Strong relationship/ correlation

- Big scatter- Weak or no relationship

Term
What are some problems with correlation?
Definition
It does not guarentee the cause! (Remember, Fruit Loops VS Bran: Fruit Loops did not CAUSE cancer
Term
Correlation ≠ Causation. Why?
Definition

Third Variable

- Something is causing the other two ( in the Fruit Loops example, younger people are more likely to eat Fruit Loops while older people will eat Bran, and older people are more at risk for cancer!)

 

Term
Reverse Causality
Definition

Can not determine which variable caused which

- EX: TV watching and obesity

Term

Goal #3: What does Explaining Behavior help to do?

 

Definition
Helps to determine the cause/effect relationship between variables (the investigatior manipluates at least one varible while measuring the other)
Term
Independent Variable (IV)
Definition
Controlled by the experimenter
Term
Dependent Variable (DV)
Definition

Measure taken in the experiment

- Response

Term
Random Assignment
Definition

Assigning participants such that each partiipant has some chance of being in a given condition

- MInimizing pre existing difference between participants

- All about experimental control!

Term

Random Assignment VS Random Sampling

 

Definition

Random Assignment:

- Assign everyon in a random way

Random Sampling

-You have to represent the whole populationi

Term
Statistical Signifcance
Definition

Crterion= .05

There is a 5% chance is due to a fluke, 95% chance it is real

Term
Advantages to Expermentation?
Definition

Equalizing differences

-Cause and effect more easily established

Term
Disadvantages to Expermentation?
Definition

1. Generaliziablity- Wheter the lab is too artificial

2. Demand Characteristics- Clues that the expermienter gives of how the person is "supposed" to feel

3. Experimenter Bias- How they conduct the Experiment

4. Ethics- Is it right?

Term
Goal #4: Control/ Change
Definition
Once you know some behavior is controlled by some other behavior, use your findings to come up with some sort of "Intervention"
Term
Some Steps to controlling/Changing behavior?
Definition

- Make observations, develelop theory, describe phenomenon

-Attempt to find variables that are related (correlatoins)

-Use that info to develop experiment and test hypothesis

-From findings conclude what may be useful to change to prevent this sort of behavior

Term
Dendrites
Definition
Recieve input to neurons
Term
Axon
Definition
Carries messages to other nuerons/ cells
Term
Axon Terminal
Definition
Sends such messages onto other nueron or muscle cells
Term
Myelin Sheath
Definition
Fatty insulation tissue that speeds up movements
Term
Afferent Neurons
Definition
Recieven messages. Carry from organ to central nervous system
Term
Efferent Neurons
Definition
Send the messages
Term
What is the primary function of nurons?
Definition

To pass information

Neuro transmitters>Axon synapsis>Recieving end>Axon Terminal>Synapsis>Receptor sites and dendrites

Term
Execitory Impulse
Definition
Go impulse. Spur of the moment. All or nothing, if the action impluse reaches the threshold, it will fire
Term
Inhibitory Impulses
Definition
No go impulse. There is a resting potential (excess of negative energy inside and positive energy outside)
Term
What happens During Excitatory and Inhibitory Impulses?
Definition
Causes sodium channells to open when stimulated. Once open, you get action pottential. It has to reach the threshold or it wont fire
Term
Electroencephalography (EEG)
Definition
Neurons produce electricity when active and EEG records the electrical activity happening on the scalp
Term
What are some advantages to Electroencephalography (EEG)? Some disadvatages?
Definition

AD- Quick response

DISADV- Only looks at activities on surface area

Term
Electroencephalography (EEG): ERP: Event Related Potential
Definition

Measured response to a particular event

-Records changes in brians activity according to certain stimulus (event related)

-Remember example officer shot man with a moon (unexpected word)

Term
Positron Emission Tomography (PET)
Definition

Observe blood flow or activity in any part of the brain

 

Term
MRI VS. fMRI
Definition

MRI- Measure hydrogen

fMRI- Measure Oxygen to observe oxygen level changes

 

Images can be blurry and delayed

Term
Forebrain
Definition
Last to develop. Most complex
Term
Hindbrain
Definition

in charge of

-Sleep

-Wakefullness

 

Term
Cerrebellum
Definition
In charge of typing or actions that must be learned but then are autatory responses
Term
Midbrain
Definition

Visual or auditory reflexes

-Something coming at you? This reacts

Term

Forebrain

 

Definition

Motor information

-Thalmus, hypothalmus

--Fighting, feeding, mating, regulates hormones by controlling the pituatary gland

Term
Subcortical Forebrain: Limbic System
Definition
Hippocampus- Controls the making and forming of memories
Term
Hippocampus
Definition
 Controls the making and forming of memories
Term
Forebrain: Cerebral Cortex
Definition

Outermost surface of the brain

- Increasing surface area

-Convolutions (bumps and grooves) so we can process more

Term
Left Brain
Definition

-Logic

-Puzzles

-Test

-Verbal

Term
Right Brain
Definition

-Visual cues

-Wholistic

-Maps

Term
Corpus Callosum
Definition
Connects the right brain to the left brain (remember the story of Carl- the subject who cut this to reduce epilepsy! He was able to identify the object with his left hand but is unable to vocally describe it
Term
Occipital Lobe
Definition

Visual center

Processes color, shape, and depth perception

Processes visual information

Term
Temporal Lobe
Definition

Primary auditory cortex and hearing

Primary source for primary language learning

Speech comprehension and production

Term
What is Wernicke's area and where is it located?
Definition

Temporal lobe

Wernicke's area- speech production is normal with rhythm and sound and fluency but the words themselves make no sense

Term
What are semantics and where are they located?
Definition

Temporal Lobe

Understand the meaning of things

-Both words and visual images

Damange can lead to agnosia (loss of knowledge)

Term

Visual agnosia

 

Definition
Inablitiy to recognize objects visually
Term
Pariental lobe
Definition

Integrates sensory information

-With information and memory inputs

Spacial navigation

Term
Pariental Lobe and Phantom Limb
Definition

You feel the senses of limbs that are no longer there

-Leaves no imput for neurons

-Makes contact with the part of the brain for the missing limb's feeling

-While the nerves on the limb itself do not exsist, the sensory nerves in the brain still exsist

Term
Unilateral Neglect
Definition
Everything on the left size pretty much ignored due to damage to one part of the brain
Term
Frontal lobe
Definition
Executive function (planning, reasoning, deciding, seeing consequences from actions, sophisticated thinking, being able to override certain responses)
Term
Phineas Gage
Definition
Damage to the Frontal lobe cause him to no longer be able to control his natural responses, would respond with whatever his emotions told him to, the fronal lobe was no longer able to keep these ideas in check
Term
What is Broca's area and where is it located?
Definition

Frontal Lobe

- Damage leads to expressive aphasia

-Halting but contentful speech

-Not fluent (VS Wernike's area)

 -Non complicated, gramatically

- "Me Tarzan, you Jane"

Term
What is the motor cortex and where is it located?
Definition

Frontal Lobe

-Motor map

-Orgainized topographically

Term
What parts of the brain do we use when driving a car?
Definition

Cerrebelum- actions that are automatic, left and right hand movements

-Occipital love-Color, shape, depth, preception, speed limits ect

-Hippocampus-Remember where you are going, special location

Thalmus-sensory information, relays visual and auditory cues

Pariental lobe- Special navigation

Temporal lobe- accidents around you, listening to radio

Medulla and ponse- tied to vital functions (heartbeat)

Limbic system- telease of all emotions in the mid brain

Corpus Callosum-connection between right and left himisphere

 

Term
What do Classic Behaviorists believe?
Definition

Internal Processes are not worth studying, they are ineffective. They use circular reasoning.

-It is all about behavorial change not the mental states

-Organisms are blank slates, environment makes it what it is

Term
What was Paclov's Dog and his subsequent discovery?
Definition

Oberseve whether the dog salivates to a particular stimilus (tone ect)

-The dog does not salivate

Sound the tone again followed by meat

-The dog salivates

Sound the tone without food

-The dog salivates!

Term
Classical Conditioning Model?
Definition

Conditioned stimilus and conditioned response

-Usually involves learning of involuntary responses

Term
Conditioned Stimilus
Definition
Unfamiliar! Must Precede unconditioned stimilus
Term
Extinction and Spontaneous recovery
Definition

Without the food, the bell caused less and less salivation

-When there is no salivation is its extinction

-Extinction does not return to unconditioned state

-It can recover if meat is paired with bell again, this is spontaneous recovery

Term
Generalization
Definition

When other simuli elicts the same response

-EX: The dog would salivate and generalize to other tones I.E. bells or tones

Term
Stimulus discrimination
Definition

Only high (and not low) tones associated with podered meat

-Dog can tell which tones bring meat and which dont

-Remember quiz question about dog being able to tell which car is yours when it pulls in the driveway

Term
Higher-order conditioning
Definition

You can include a light with the tone that is associated with the meat, and eventually only the light will be needed

 

Term
Classical Conditioning and treatment of phobias
Definition

Can't extintuish fear

-Speed of extinction is unpredictable

-People usually aviod what they are afraid of

What can you do?

-Counter conditioning- Associate fear with good feeling (Little Albert)

Systematic disintegratoin- building up a response against the rabbit

Term
John B Watson
Definition
Believed with operant conditioning because humans are born as a blank slate, he could raise any human to be any sort of profession he wanted them to be
Term
Thorndike's discovery
Definition

Puzzle Boxes

-cleverness was just trial and error

-Well practiced cat recalls actoins that brings reward

-Action bring reward is then stamped into their minds

Term
Law of effect
Definition
Developed by Edward Thorndike, he believed that behavior changed according to consequence
Term
Skinner
Definition

Skinner box experiments

-Pigeons placed in operant chamber

-Pegeon always hungry

-Trained to peck when it says peck and ect

Reinforcement brings about learning

 

Term
Operant Conditioning: Reinforcement
Definition
Anything that increases  the probablity of an organism repeating a behavior
Term
Operant Conditioning: Punishment:
Definition
Anything that decreases the probablity of an organism repreating a behavior
Term
Positive Reinforcement
Definition
Increases behavior b administering a stimulus (compliments on a shirt, dog a treat for sitting)
Term
Negative Reinforcement
Definition
Increases behavior by removing a stimulus (curfew restrictions)
Term
Positive Punishment
Definition
Decrease behavior by administering a stimulus (spanking, yelling)
Term
Negative Punishment:
Definition
decreses behavior by removing a stimulus
Term
Shaping
Definition
Reinforcing behaviors that are progressively closer to a desired behavior
Term
Chaining
Definition

A complex behavior can be learned by chaining together simpler components of the end behavior

-Accumulation of small parts: getting dressed, counting, tying shoes

Term
Partial Reinforcement: Fixed interval
Definition
After a set amount of time you will be reinforced
Term
Partial Reinforcement: Variable interval
Definition
After variable amounts of time
Term
Partial Reinforcement: Fixed ration
Definition
After a set number of acts
Term
Partial Reinforcement: Variable ratio
Definition
After a variable number of acts, no clue how many times they must be performed
Term
Social Cognative approach
Definition

What and how people learn from one another

-How does modeling after one another affect behavior

-teaching new behavior

--influencing previous forbidden behanvior

-Increasing similar behavior

Term
Observational Behavior
Definition

Learning by witnessing others behavior

-Trying behaviors

-No reinforcement

-Learner learns from someone else being reinforced or punished

Term
Percieving VS Knowing
Definition
You might KNOW one circle is bigger but you can't percieve it
Term
Sensation
Definition
The stimulation in our sensory recptios (eyes ears and skin) caused by the enviorment
Term
Perception
Definition

The awarness and recognition of the things in the world using sensory information

-Determine what objects are out there

 

Term
Example of sensation?
Definition
Trees, singular components, you just notice the trees
Term
Example of perception?
Definition
Try to take the whole forest in
Term
Three steps to sensation and perception?
Definition

1. Stimulus energy impacts sense receptors

2. Sense organ tranduces the stimulus energy into an electrical code

3 This code is sent to the cebral cortex, resulting in a psychological experience

Term
Distal stimulus
Definition
The external object itself
Term

Proximal stimuli

 

Definition
The stimulus energy that is transduced by the eye
Term
Principles of Grouping: Gestalt
Definition
The whole is greater than the sum of its parts
Term
Principles of Grouping: Figure and ground
Definition
Same picture has two perceptions, can't see both at the same time. (Two faces VS Wine Glass)
Term
Principles of Grouping:Proximity
Definition
See groupins rather than total thanks to one being close to the other
Term

Principles of Grouping: Similarity

 

Definition
Grouping objects that are the same together
Term
Principles of Grouping: Continuation
Definition
Continuous path see it as two parts
Term
Principles of Grouping:Closure
Definition
Humans see full figure even though some of the figures are missing (I.E.. panda ECT)
Term
Principles of Grouping: Bottom up vs top down processing
Definition

Bottom up: Different parts together to see as a whole

Top Down: Use info you konw to inderstand what you are seeing

Term
Depth Perception: Monocular cues: Interposition
Definition
One object blocks another, so it is therefore closer
Term
Depth Perception: Monocular cues: Relative size
Definition
Equal size? Closer object will be bigger
Term
Depth Perception: Monocular cues: Linear Perspective
Definition
Parallel lines appear to converge in the distance
Term
Depth Perception: Monocular cues:Texture gradient
Definition

Further objects appear less detailed

Close objects appear more detailed

Term
Depth Perception: Monocular cues: Shading
Definition
Catching the light differently
Term
Depth Perception: Monocular cues: Motion parallax
Definition
As we move objects that are closer move faster than objects that are in the distance
Term
Depth Perception: Binocular cues: Steropsis
Definition
Each eye recieves different view
Term
Depth Perception: Binocular cues: Retinal disparity
Definition

Closer is less similar images betwee eyes

 

Term
Depth Perception: Binocular cues:Convergence
Definition
Closer is the sharper angle of eyes
Term
Perceptual Constancy: Color constancy
Definition
Perfieved color of something remains consistent under varying surroundings
Term
Visual Object recogintion
Definition
Percieving the object does not equal recognizing the object
Term
Associative agnosia
Definition
percieve the objects but not able to tell what they are
Term
Prosopagnosia
Definition
In ablity to recognize faces
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