Psychology Final Flashcards
Psychologist vs Psychiatrist
**Psychiatrist can prescribe medicine
Psychology definition
scientific study of mental processes and behavior of humans and animals
latent learning
‘hidden’ learning
double blind study
neither subjects or experimenter knows placebo
crossover design
switch control groups
operational definition
behaviors used to define dependent variable
dependent variable vs independent variable
testing just the effect of the independent variable
cross sectional vs longitudinal studies
2 groups vs 1 group over long time
Four Lobes of Brain (Clockwise)
- Frontal
- Parietal
- Visual
- Temporal
Folds and Valleys in brain
folds= sulci valleys= gyri
Fissure
deep folds in brain
2 types of Fissures
- Central (Rolondo) fissure
- Longitudinal (Sylvian) fissure
Hindbrain
Medulla Oblongata, Cerebellum, Pons
Nervous System (2 branches)
Central Nervous System & Peripheral Nervous System
Peripheral Nervous System (2 branches)
Somatic & Autonomic
Autonomic NS (2 branches)
Sympathetic & Parasympathetic
Central Nervous System
Spinal Cord
**poor recovery
Peripheral Nervous System
All other nervous system, good recovery
Somatic
conscious, voluntary
**contains senses and movements
Autonomic
unconscious
**glands, organs, heart muscle
Sympathetic NS
stressed
***
Parasympathetic NS
rest
***
smooth muscle
wraps around blood muscle to constrict or dilate
cerebrospinal fluid
surrounds brain in skull
benefits of csf
shock absorbance, reduces weight, provides nutrients
Meninges (Definition and Names)
membranes surrounding brain
- Dura Mater
- Pia Mater
- Arachnoid Mater
Ventricles
spaces for fluid to flow; produce CSF
Flow of csf through ventricles?
Lateral–> 3rd–>through aqueduct of Monro–> 4th–> circulates brain and spinal cord
Meningitis
inflammation of meninges
choroid plexus
produces csf; lines ventricles
enlarged ventricles indicates _______
loss of nerve cells (could mean Alzheimer’s, schizophrenia)
Medula Oblongata
controls functions (respiration, heart rate, blood pressure, muscle tone, swallowing)
nucleus definition
group of cells acting together for a function
Area Postrema
nucleus that controls vomiting; in Medulla
Blood-Brain Barrier
keeps substances from leaving blood and entering brain
***substances that can cross it are all psychoactive (change behavior)
Pons
sleeping, waking, dreaming, arousal
Cerebellum
important for movement; acts like a computer that monitors our senses and muscles in order for us to make smooth coordinated movement
Ataxia
extreme clumsiness
Atonia
muscular weakness
Intention tremor
hands shake when close to target
Decomposition of movement
“breaks movements into parts”
Disdiadochokinesis
difficulty making rapidly alternating movements
Ballistic damage
difficulty with timed movements
where is the blood-brain barrier weakest?
the cerebellum
Midbrain (2 parts)
Tectum & Tegmentum
Tectum (2 parts)
- Superior Colliculus (vision)
2. Inferior Colliculus (hearing)
Purpose of Tectum
helps us orient to a stimulus
Retina —> Tectum
retino tectum (orients stimulus)
Retina —> Visual Cortex
retino striate (sees stimulus)
“Blind Sight”
residual vision after damage/removal of visual cortex
In case study on blind sight, subject could not _____ but could _________.
- –couldn’t turn head and eyes to stimulus
- –BUT could point, guess shape, guess color, guess up or down
Mere Exposure Effect
students were ‘merely exposed’ to an image (subconscious). They were then shown 2 images and they preferred the one they were exposed to.
Parkinson’s disease
- affects movement & cognitive
- no cure
- progressive disease
Parkinson’s disease cause
not enough Dopamine produced by Substantia Niagra, cells die in midbrain and dopamine doesn’t make it to brain
Substantia Niagra
nucleus in tegmentum, cells make dopamine
Symptoms of Parkinson’s Disease
micrographia, tremor, gait disturbance, stiffness, propulsion, retropulsion, “frozen”, motor problems
Nigro-Striatal Bundle
?????
______ can get through the BBB and treats symptoms for Parkinson’s disease
L-Dopa
***NOT A CURE
___ goes to Substantia Nigra and kills cells
MPP+
_____ is an antidepressant that slows progression of Parkinson’s Disease
Deprenyl
Forebrain (2 parts)
- Telencephalon
2. Diencephalon
Telencephalon (3 parts)
- Cortex
- Basal Ganglia
- Limbic System
Diencephalon (2 parts)
- Thalamus
2. Hypothalamus–> pituitary
Hypothalamus
controls fighting, fleeing, feeding, water balance, sexual, temperature, etc.
Hypothalamus and Pituitary gland produce ______
hormones
oxytocin
milk production, “bonding”
tropic hormones
growth, gonadatropin hormones
Hypothalmus (2 parts)
- Eating Center (lateral hypothalamus)
2. Satiety Center (ventromedial hypothalamus)
Lateral Hypothalamus destroyed –>
Aphagia, Adipsia
Ventromedial Hypothalamus destroyed –>
Pathological obesity
Amygdala
emotion (fear, anger, anxiety, aggression)
Hippocampus
memory
destroying the Amygdala causes _________
abnormally low affect
*****What happened when H.M. had his hippocampus removed?
- Anterograde Amnesia
- Lost Declarative Information
- kept Non-declarative information (motor skills, priming, rules & strategies, classical conditioning)
Declarative memory
Semantic Knowledge (facts) and Episodic (events)
Corpus Collosum
connects brain hemispheres
Aphasia
language deficit
Broca’s Aphasia
- labor to get words out
- poor articulation
- ‘telegraphic speech’
- blurt
- **expressive deficit
Wernicky’s Aphasia
- rapid speech
- no meaning
- no comprehension
- can’t read or write
- **receptive deficit
“Nous parlons Avec l’hémisphère gauche”
We speak with the left hemisphere- Paul Broca
Emotional speech most likely in ___ hemisphere
right
Prosody
intonation, inflection, emotion, speech
Parphasia
nonsense words
***Precentral Cortex, Primary Motor Cortex, Post central Sensory Cortex (control from top to bottom)
Top: Leg/foot
Middle: Hands
Bottom: Head
Premotor cortex
helps plan & initiate movements
mirror neurons
fire when they watch an action happen
damage to ___ parietal lobe produces sensory neglect in the left visual field
right
Damage to Dorsolateral cortex
- lack of spontaneity/ flexibility
- poor short term (working) memory
- poor temporal memory (memory for sequence)
- inability to inhibit ongoing behavior and start a new behavior
Wisconsin Card Sorting Task
4 shapes, 4 #’s, 4 colors- sort them and must change sort
Damage to Orbital Prefrontal cortex
-lose ability to decide what behavior is socially acceptable
Iowa Gambling Task
4 card colors, 2 good and 2 bad. Turn over for $, must choose lower cards for long term advantage.
Dizygotic twins vs Monozygotic twins
2 eggs vs zygote splits
Ectopic pregnancy
zygote develops outside of uterus
Turner’s syndrome
missing x, girls only
Kleinfelter’s syndrome
extra x, guys only
“Supermale”
XYY
“Seal children”, born without fully developed arms or legs after mothers were taking __________.
thalidomide
Fetal Alcohal Syndrome
2 drinks/day
____ causes 100% of severe birth defects
Acutane
Neonate Newborb (5 reflexes)
- Sucking reflex
- Babinski reflex (toes fan out)
- Grasp reflex
- Exaggerated startle reflex (Moro)
- Anti-smothering reflex
4 Stages of Cognitive Development
***Studied by Piget
- Sensory Motor
- Preoperational
- Concrete Operational
- Formal Operation
Object permanence
idea that something exists even when it isn’t there
Conservation logic
example: different glasses but same amount of water
Kohlberg’s Moral Development stages
- Pre-conventional
- Conventional
- Post-conventional
learning
change in behavior that is relatively long lasting due to experience
Strong stimulus —> unlearned response
unconditioned stimulus—> unconditioned response
neutral stimulus —> learned response
conditioned stimulus —> conditioned response
Aquisition
process of teaching a conditioned response to a conditioned stimulus by presenting it with the ucs
Classical Conditioning
unconditional/conditional stimulus/responses
Extinction
decline of conditioned response caused by presenting cs without ucs
spontaneous recovery
fear reappears and is extinguished again
stimulus generalization
generalizing fear to a different stimulus
stimulus discrimination
????? look up :)
higher order conditioning
linking cs to other cs
phobia
an exaggerated fear of unknown origins that alters life
counter conditioning
learning a new response to an old stimulus
Operational Conditioning
frequency of behavior depends on its consequences
***more voluntary than Classical
reinforcer
increases behavior
punisher
decreases behavior
positive reinforcer
gives something pleasurable
negative reinforcer
takes away something unpleasant
Primary and Secondary positive reinforcers
??????
shaping
gradually reinforcing behaviors that are closer to the behavior you want
Partial Reinforcement
only rewards behavior sometimes
Fixed ratio response
rewards behavior after set amount of times
Variable ratio response
rewards behavior after an average of a set amount of times
Fixed interval
rewards first behavior after a specific amount of time has elapsed
Variable interval
rewards first behavior after and average of a certain amount of time has elapsed
discriminative stimulus
gives information about what to do
superstition
an erroneous belief that a behavior has a certain consequence
positive punishment
adds something unpleasant
negative punishment
takes away something pleasant
3 stages of memory
Encoding, storage, retrieval
shadowing
something different is whispered in each ear, and you can only repeat one
Photographic Memory
Eidetic Imagery
Short term memory located in _______
dorsolateral prefrontal cortex
Method Loci
visual maps
Serial Position Effect
memory is best for the beginning and end of a passage
Confabulation
recovery of a false memory
DSM
diagnostic and statistical manual (12 categories of abnormal behavior)
Infancy and Childhood Disorders
- mentally challenged/delayed
- ADHD, ADD
- Eating Disorder
- Development
Delirium/Amnesia
due to toxic substances or brain disease
Substance Abuse
????
Anxiety Disorders
- generalized anxiety
- panic attacks
- phobias
- OCD
Personality Disorders
- lifelong, maladaptive patterns of behavior
- sociopath
Dissociative disorders
- parts of life aren’t known by other
- memory/amnesia
Sexual and Gender Disorders
- transgender
- pedophilia, fetishes
Affective Disorders
- mood
- bipolar
- manic depressive, unipolar depression
Impulse Control Disorders
pyromania, violence, kleptomania
Psychoses/Schizophrenia
????
Eating Disorders
bulimia, anorexia, obesity
Depression Criteria
A or B
a) Depressed mood all day, every day
b)marked loss of interest or pleasure in all activities
+ 4 of Following 7
1) Significant weight gain or loss
2) Insomnia or hypersomnia
3) psychomotor agitation ore retardation
4) Extreme Fatigue
5) Feelings of worthlessness or guilt
6) Decreased ability to think or concentrate
7) Recurrent thoughts of death or suicide
____ percent of depression goes undiagnosed.
50%
___ of population is depressed
4%
Treatments for depression
psychological counseling, electroconvulsive shock therapy, antidepressants
3 drug treatments for depression
- Monoamine Oxidase Inhibitor (MAOi)
- Tricyclic Antidepressants (TCAs)
- Selective Seratonin Reuptake Inhibitors (SSRIs)
Monoamine Oxidase Inhibitor
eliminates MAO
***“Cheese Effect”-can’t break apart Tyramine
Tricyclic Antidepressants
blocks reuptake of seratonin and norepinephrine
Selective Seratonin Reuptake Inhibitors
not lethal, costs more
Schizophrenia
characterized by hallucinations, delusions, and loose associations
hallucinations
perceiving something that isn’t there
delusions
beliefs for which there is no evidence
loose association
random thoughts trigger other random thoughts; incoherent
theory of Schizophrenia cause
too much dopamine
Obsessive can’t control _____
thought
Compulsion can’t control _______
behavior
aichmophobia
fear of sharp objects
nyctophobia
fear of dark
acrophobia
fear of heights
zoophobia
fear of animals
mysophobia
fear of germs
agorophobia
fear of going to unknown place with people
What is a somatoform disorder?
body symptoms with no physical cause
Types of Somatoform disorders
- Hypochondriasis
- Conversion Reaction (stress converted to symptom)
- Stigmata- bleeding palms and feet
Personality Disorders (3)
- Narcissistic behavior
- Sociopathy
- Psychosexual disorders
Dissociative Disorders
multiple personality