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Psychopathology
The scientific study of psychological disorders
Psychological Disorder
is (1) a psychological dysfunctions within an individual associated with distress, or impairment in functioning and a response that is culturally expected.
Psychological Dysfunction
Dysfunction is broken down in cognitive, emotional, or behavioral functioning
Key components of psychopathology
Distress, Dysfunction and Deviance
Supernatural tradtion
Blevied in supernatural causes of MI. Churches replaced psychicains as healers of mental health. MI periceved as a punishment for sin. Rise of Humanism- empahsizing human welfare, establishment of a few mental hospitals.
The Biological Tradition
Hippocrates. A naturalistic explanation. Separated mental illnesses from religon, magic and superstition. Argued that psychological disorders could be treated like any disease, and was coming up with different methods to cure the disorder. Heredity and environment play very important roles.
Hippocrates Classificatons
Mania, Melancholia, and phrenitis
Galen idea
assumed that normal brain functioning was related to four bodily fluids or humors: blood, black bile, yellow bile and phlegm. Blood came from the heart, black bile from the spleen, phlegm from the brain, and choler or yellow bile from the liver.
How biles influenced
Black bile, Yellow blue and phlegm
Saying you need the right amount of bile, and too much or too little, then you will have some diseased
BLOOD- sanguine (warm, moist nature), sociable and lively and optimistic
Black Bile- melancholic (close and dry nature) colony, introspective and prone to sadness (is it actually a good day?) (prone to depression)
Yellow- choleric (hot and dry nature) Ambitiuus aggressive and quick-tempered
Phlegm phlegmatic (cold and moist nature) calm passive and sometimes sluggish
Too much/too little of the humors lead to diseases
Sanguine, melancholic, choleric, and phlegmatic personalities
The biological treatment
Physical interventions of electric shock and brain surgery
Some still being used
Electric shock done to balance hormones
A period of try and error e.g., insulin (insulin shock therapy) to stimulate appetite in psychotic patients was found to calm them as well. It sometimes resulted in prolonged coma and death and was therefore abandoned
Lots of trial and error
Those willing to try out methods, not tested on just tried out on a person
Insulin introduced
Stimulate appetite in psychotic patients.
Found it helps them stay calm and have an appetite to eat
However an result in prolonged coma and death and was therefore abandoned
Had to weigh options
Induced brain seizures to cure schizophrenia. Shock treatment is still in use (electroconvulsive therapy)
Shock treatment
Still used in szt cases, though not advised
The first effective drugs for severe psychotic disorders were developed (in a systematic way) during the 1950s
Rauwolfia serpentine (later renamed reserpine) and another class of drugs called neuroleptics (major tranquilizers) for hallucinations, delusions, agitation and agression
Consequences of the Biological tradition
Started in the late 19th century- influenced by Grey and his colleagues, mental disorders were viewed as some as yet undiscovered brain pathology and were therfore incurable
They argued that only available course of action was to hostialize these patients
Grey says no it can not be cured
They argued that this can not be cured and instead can only take them out of society
Can in big, big deal bc people had to be hospitalized
The psychological tradtion
brain pathology is the cause of psychological disorders. Plato says two causes of maladaptive behavior, social and cultural infleunces in one’s life and the learning that look place in that environement
Moral therapy (psychological tradtion)
Is not about good or bad, but the treatment an individual should recieve, more to emotional or psychological factors rather than a code of conduct. Includeds treating institutionalized patients as normally as possible in a setting that encouraged and reinforced normal social interaction.
Asylum Reform and Decline of Moral Therapy
MT no longer feasible, as institutions had too many patients for individual attention. Mental Hygiene Movement, led by Dorothea Dix campaigned endlessly for reform in the treatment of insanity. Moved to custodial care and decided that MI was caused by brain pathology, therefore incurable.
Psychodynamic Perspective (psychological treatment)
Sigmund Freud
Linked every human behavior to aggression and sex. Let people talk freely.
Structure of Mind:
ID- self- very selfish, born with it, operates pleasure principle
EGO- Re, ensures we act realistically, morally, operates under the reality principle
SUPEREGO, moral, all the laws of soceityyou have to follow, represents the moral principles instilled into us by parents and culture
IF ALL THREE ARE IN CONFLICT- MENTAL ILLNESS
Free association
Saying whatever comes to mind whilst the therapists helps the client connect the dots
Catharsis
The release of emotional material
Defense mechanisms
unconscious protective processes that keep primitive emotions assocaited with conflicts in check so that the ego can continue coordinating function
Resistance
what the client is unwilling to say or experience
Transference
how a persons imagines how another person thinks about him or her. E.g. directing feelings of one’s father towards a male therapists
Therapy and client, both girls and client has an issue with mother, therapists may feel like she is talking as a mother
Countertransference
when the therapists projects feelings to a client
Therapists sees client like her little sister
Insight therapy
bringing thoughts, feelings and behavior into awareness
Evoked all the things to come to surface (subconscious or unconscious) has a lot of trauma and bring that info out
Casteration anxiety
boys having sexual fantasiaies about their mothers and the fear develops that the father may punish that lust by removing the son’s penis
Oedipus complex
the internal conflict between listing one hand and fear of castration on the other
Electra complex
the same phenomena but in a female child
Psychosexual stages of development
Oral (birth to 1 year)
Anal (1-3 years)
Phalic (3-6 years)
Latency period
Genital
Oral
a babys libido or innate pelasure- seeking energy is focused on the mouth. Underfed elads to pessimistic envoius and suspecious adult. Overfed leads to optimism, gullible and full of admiration
Pleasure seeking behavior always in the mouth
Not done well when they are overfed, leads to optimism guillibe and full of admiration (look at me)
If 1 year of child’s life is not resolved well these are the issues following them into adult hood
Anal
the libido becomes focused on the anus and the child derives great pleasure from defecating. Explusive character- liberal pottty traiing; messy, disorganized, reckless, careless, and defiant. Retentive character- harsh potty training; obsessively tidy, punctual and respectful of authority
Potty training
Pleasure in anus
Expulsiive behavior- messy disorganized
No directions of how to potty train
Phalic
libido (or desire) becomes focused on their genitals as the primary source of pleasure. Oedipus complex in the boyd and electra complex in the girls. Latency. Fixation in men might result in anxiety about sexual performance, the need for reassurance and validation or a tendency to be overaly assertive or aggressive. In women, a desire to dominate men, a riverly with other women or the need for male attention or approval
Latency Period
Kid moved to friends no longer worried about sex
Impulses are repressed
Failure to make strong connections feel inaquate insecure or isolated
Gential
Return to genitalia
Want to get in relationships
Dependent on how the other stages went
Existential humanistic perspective
Carl Jung and Karen Horney.
Shift to positive psychology
PERSON/CLIENT- therap (a) empatheitc listening (b) unconditonal positive regard © genuineness and congruence
emotion- focused therapy/process- experiental therapy
(a) bonding and awareness (b) evocation and exploration © transformation and generation of alternativeness
Classical Conditioning NTK
paring an unconditonal stimuluus with a neutral stimulus overtime causes the neutral stimulus to result in an unconditional response
Operate conditioning
a type of learning in which behavior changes as a function of what follows the behavior
Observational learning
Central Nervous System
consists of the spinal cord and the brain
Peripheral nervous system
consists of the somatic nervous system, and the autonomic nervious system
Somatic nervous system
Voluntary- relays information to and from skin and skeletal muscles
autonomic nervous system
Involuntary, relays infromation to internal organs
2 parts
Sympathetic system
Parasympathetic system
Sympathetic system
controls organs in times of stress
parasympathetic nervous system
controls organs when body is at rest
Central Nervous System
processes all information recieved from our sense organs and reacts as necessary (the body’s decision maker
Function of Spinal Cord
Primary function is to faciliate the sending of messages to and from the brain
Neurons
Brain uses an average of 140 billion nerve cells
Transmit information throughout the nervous system
Help relay information from one neuron to another and transmit to the nervous system
Forebrain
The largest part of the brain. Two hemispheres of the cerebral cortex. Volunatry actions
Left
specialize more in verbal processes
Right
focused on perceiving and manipulating images
Midbrain
coordinates sensory input and motor movement.
regulates sleep/wake cycles and processes related to tension and arousal
regulates fundamental drives- eating, drinking
Hindbrain
Regulates autonomic body functions- heart rate, breathing, digestion, ect
Contains the medulla, the pons, and the cerebellum
Medulla
Manages breathing, heart rate, and blood pressure
Pons
Acts as a connector between the cerebellum and medulla: transfers messages between other parts of the brain and the spinal cord
Cerebellum
Manages balance and muscle coordination
cerebum
largest part of the forebrain, dived into left and right hemisphere with four lobes. Parietal, occipital, temporal, and frontal
cerebellum
Regulates voluntary body movements
medulla
controls vital functions such as breathing, heart rate and blood pressure
Pons
Acts as a connections btwn the cerebellum and medulla
transmits messages between other parts of the brain, and the spinal cord; regulates sleep.
Somatic nervous system
controls the muscles, so damage in this area might make it difficult for us to enagr in any voluntart movement, including talking
The autonomic nervous system
regulates the cardiovascular system (for exmaple, the heart and blood vessles) and the endocrine system (for example, the pituitary, adrenal, thyroid, and gonadal glands) and performs various other functions, including aiding digestion and regulating body temperature
Cell body-
contains a nucleus, which include DNA and other element a including mitochondria which are involved in supplying energy
Dendrites
recieves information from other cells
Axon
carries information away from other cells
Axon terminals/ terminal branches
Where information leaves the nerve cell and is passed onto target cells
Neurotransmitters
Where information leaves the nerve cells and is passed on to target cells
How do Neurons pass information
Neurotransmitters need to be created and stores
Enzymes in the neurons cell body and axon terminals modify these precursor molecules to produce neurotransmitters
An action potential travels down the axon to the terminal
Through a variety of processes, a neurotransmitter is released into the gap between the two neurons (synaptic cleft)
The neurotransmitter than binds with specific proteins in the next neuron
This either increases (excitatory) or decreased (inhibits) the possibility that the next neuron will create an action potential
Alcohol depressant, coke makes you feel better
The gap between the two neurons must be made nutrual at this point by any of a number of mechanisms including
Making the neurotransmitter inactive
Having the neurotransmitter taken up by the first neuron *referring to as reuptake), and,
Removing the neurotransmitter from the gap between the two neurons
The gap has to be cleared
Neurotransmitters are classifed in terms of size.
Small molecule neurotransmitters eg, glutamate- excitatory and GABA- inhibitory clam relaxation) glutamate and GABA operate relativelyy independently at a molecular level, but the relative balance of each in a cell will determine whether the neuron is activated (fires ) or not
Glutamate, is an excitatory transmitter that “turns on” many different neurons, leading to action
Gamma-aminobtyric acid GABA operate relatively indepedently at a molecular level, but the relative balance of each ina cell will determine whether the neuron is activated (fires) or not
NT will be classified according to function 3 catogires
Neurotransmitter that meditate communication between neurons, such as glutamate and GABA
Neurotransmitters that influence communication of information of neurons (preventing the brain from knowing that one part hurts medicine is blocking t) such as glutamate and GABA
NT that influence the communication of information such as opioid peptides in the pain system
Influence activity of large population of neurons (serotonin), dopamine
Glutamate & GABA
direct excitatory or inhibitory communication between neurons.
Opioid peptides
system-specific modulators (like the pain system).
erotonin (and others like dopamine, norepinephrine, acetylcholine)
diffuse modulatory transmitters that influence large populations of neurons and broad states like mood, arousal, and attention.
GABA
Function- Calming- calms firing nerves in the CNS. High Levels improve focus, low levels ause anxierty. Also contributes to motor control and vision
Norepinephrine
Function- Concentration- affects attention and responding actions in the brain. Contracts blood vessels, increasing blood flow
Acetylcholine
Learning- involved in thought, learning and memory. Activates muscle action in the body. Also assocaited with attention and awakening
Glutamate
Memory- involved in learning and memory. Regulates development and creation on nerve contacts
Serotonin
Mood- contributes to well-being and happiness. Helps sleep cycle and digestive system regulation. Affected by exercise and light exposure
Endorphins
Euphoria- Released during exercise, excitement, and sex. Reduce pain produce well-being
Adrenaline
Fight/Flight- produced in a stressful situation. Increases heart rate and blood flow, leading to physical boost and heightened awareness
Dopamine
Pleasure- Feelings of pleasure, also addiction, movement and motivation. People repeat behaviors that lead to dopamine release.
Electroencephalography EEG
to record electrical activity from the scalp related to cortical activity
Magnetoencephalography meg
measures the small magnetic field gradients exiting and entering the surface of the head that are produced when neurons
PET- Positron emission
measures blood flow in the brain, which reflects cognitive processing. By measuring changes in blood flow in different brain areas, it is possible to infer which area of the brain are more or less active during particular tasks. No longer a technique of choice
FMRI-
measure the exact location of structure and activity. Measurements using fmri ARE MADE BY HAVING A PERSON lie on their back inside a large magnet and radio frequency device, which measures changes in blood oxygen levels
Hypothesis FILB
an educated guess or statement to be supported by data
Research design
The plan for testing the hypothesis. Affected by the questions asked, by the hypothesis and by practical considerations
Dependent variable
some aspect of the phenomenon that is measured and is expected to be changed or influenced by the independent variable
Independent variable
The aspect manipulated or thought to influence the change in the dependent variable
Internal validity
the extent to which the results of the study can be attributed to the independent variable
External validity
The extent to which the results of the study can be generalized or applied outside the immediate study
Randomization
The process of assigning people to different research groups in such a way that each person has an equal chance of being placed in any group
No choosing
Confounding variable
variables that when not controlled, makes the results uninterpretable. Thus, are irrelevant to the hyopthesis being tested but can atler a reasearchs conclusions (e.g. age, sex, religous background, SES)
Social economic status
No control= influence of results
Non-experimental methods of psychological research
OBSERVES AND MEASURES VARIABLES WITHOUT MANIPULATING THEM
Case study-
an in-depth analysis of the behavior of one person or a small number of people
Naturalistic observation-
an in depth study of a phenomenon in its natural setting
Being among the people to get to know them, not getting info from them but from watching and observing them
Correlation approach
measure the direction and strength of the relationship between two variables, or factors that have values that can vary
Epidemiological Research-
- the study of incidence, distribution and consequences of a particular problem or set of problems in one or more populations. Delves into prevalence (the number of people with a disorder at any one time) and incidence ( the estimated number of new cases during specific period)
Experiment
allows a researcher to establish cause and effect. The researcher can isolate the effects of one or more factors by (1) manipulating the factor of interest and (2) controlling other factors
true experiment
(involves a control group, and an experimental group, random slecetion, controlled environement, intervention is present)
quasi-experiment
controlled environment, intervention is present)
Experimental group
Control group
double blind control
Experimental group- the group recieveing the treatment
Control group- the group held constant/ not exposed to the treatment
Double blind control- where both participants and researchers are unaware of what group they are in or what treatment they are given
Clinical trial-
an experiment used to determine the effectiveness and safety of a treatment or treatments. It is always useful to have a control group
Can use on animals first before humans