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Percentages for Unipolar Depression
- 20% of all adults
- 26% of women
- 19% men
- Average onset is 19 years old
Impacts of depression
affects all parts of life
DSM Checklist for Major Depressive Disorder
1.) for a 2 week period, displays increase in depressed mood and/or a decrease in enjoyment or interest across most activities for the majority of each day.
2.) for 2 weeks, experiences at least 3 or 4 of the following symptoms: considerable weight change or appetite change, insomnia or hypersomnia, agitation or decrease in motor activity, fatigue or lethargy, feelings of worthlessness or excessive guilt, reduction in concentration or decisiveness, repeated focus on death or suicide, suicide plan, or attempt
3.) distress or impairment
4.) no pattern of mania or hypomania
DSM checklist for Persistent Depressive Disorder
1.) experiences the symptoms of major or mild depression for at least 2 years
2.) during 2 years, symptoms not absent for more than 2 months at a time
3.) no history of mania or hypomania
4.) distress or impairment
reactive (exogenous) depression
stressful events trigger episode
- 80% of severe episodes occur after a significant event
Endogenous depression
episode is not triggered by an event (20%)
Biological Causes of Depression
Genetic Factors, biochemical factors, brain circuits, and immune system
Genetic factors of depression
family pedigree studies, twin studies, and gene studies
Biochemical factors of depression
low activity of two neurotransmitters, serotonin and norepinephrine
Brain Circuit factors of depression
- dysfunction in prefrontal cortex, hippocampus, amygdala, and subgenual cingulate
- irregular activity in various brain locations
- in addition to irregular neurotransmitter activity
Immune system factors of depression
Under intense stress, dysregulation of immune system occurs
- slower functioning of lymphocytes, increased pro-inflammatory cytokines production, and greater inflammation
- viral and inflammatory theories are receiving attention in many psychiatric disorders
biological treatments for depression
antidepressant drugs and brain stimulation
types of antidepressants
MOA inhibitors, tricyclic antidepressants, and second-generation antidepressants
MOA inhibitors
increases activity level of neurotransmitters serotonin and norepinephrine
- Iproniazid; tyramine
- cannot eat aged food on this drug (can be lethal)
Tricyclic antidepressants
prevents neurotransmitter (norepinephrine & serotonin) reuptake of key neurons
- imipramine; Tofranil
- can make you sleepy and increase appetite
Second Generation antidepressants
- selective serotonin reuptake inhibitors (SSRI) increase serotonin activity (Zoloft, Lexapro, Prozac)
- selective norepinephrine reuptake inhibitors (SNRIs) that increase norepinephrine activity only (Strattera)
- serotonin-norepinephrine uptake inhibitors increase activity of both (Effexor)
Ketamine-based antipressants
- increases activity of glutamate
- may aid in new neural pathway development
- alleviates depression quickly, used for those unresponsive to other drugs or are suicidal
- short term impact (spravato)
Brain Stimulation
biological treatments that directly or indirectly stimulate certain areas of the brain (ECT, Vagus nerve stimulation, transcranial magnetic stimulation, deep brain stimulation)
Vagus nerve stimulation
implanted pulse generator sends electrical signals to the ____ _____, which then delivers electrical signal to the brain
- helps reduce depression in many patients
Psychodynamic Model of Depression
- real or imagines (symbolic) loss
- depression is the result of when people's relationships leave them feeling unsafe and insecure (especially in early life)
Cognitive-Behavioral Model of Depression
depression results from problematic behaviors and dysfunctional thinking
Theoretical perspectives:
- behavioral dimension
- negative thinking
- complex cognitive and behavioral factor interplay
Behavioral Dimension (Lewinsohn)
- number of life rewards related to presence or absence of depression
- large reduction in positive life rewards may cause increasingly fewer positive behaviors, even lower positive reward rates, and eventual depression
- loss of social rewards are important in downward depression spiral
Negative thinking (Beck)
Unipolar depression is produced by a combination of maladaptive attitudes, cognitive triad, errors in thinking, and automatic thoughts
Cognitive triad
- negative view of experiences
- negative view of oneself
- negative view of the future
Learned helplessness
cognitive-behavioral interplay
- seligman: depression occurs when people believe they have no control over life reinforcements
Behavioral Activation
- reintroduce pleasurable activities
- consistently reward nondepressive behaviors and withhold rewards for depressive ones
- improve social skills
cognitive-behavioral treatment of depression
- behavioral activation
- beck's cog-behav therapy (CBT)
- acceptance and commitment therapy (ACT)
Beck's cognitive-behavioral therapy
1.) Increasing activities and elevating mood
2.) challenging autonomic thoughts
3.) identifying negative thinking biases
4.) changing primary attitudes
Sociocultural model of depression
- depression is influenced by social context and often triggered by outside stressors
- lack of social rewards (separation, divorce, widowhood, or covid isolation)
sociocultural treatment for depression (family-social)
Interpersonal psychotherapy (IPT)
- interpersonal loss (psychodynamic)
- interpersonal role dispute (i want something but they have a different view)
- interpersonal role transition (talks about challenging transitions)
- interpersonal deficits
- success rate similar to CBT and antidepressants
sociocultural treatment for depression (multicultural perspective)
- depression is found worldwide
- precise picture of depression varies slightly
- people who are depressed in non-western countries report more physical symptoms of depression rather than cognitive (stomachache, headache, etc)
Bipolar Disorders
- involve lows of depression and highs of mania
- shifts between extreme moods
- have dramatic impact on relative and friends
symptoms of mania
people in this state typically experience dramatic and inappropriate rises in mood, energy, and risky behaviors
Mania DSM Checklist
- for 1 week or more, person displays a continually irregular, inflated, unrestrained, or irritable mood as well as continually heightened energy or activity, for most of the day
- 3 of the following symptoms: grandiosity or overblown self-esteem, reduced sleep need, rapidly shifting ideas or sense that one's thoughts are moving very fast, attention pulled in many directions, heightened activity or agitated movements, excessive pursuit of risky and potentially problematic activities
- distress or impairment
Bipolar I DSM Checklist
- occurrence of a manic episode
- hypomanic or major depressive episodes may precede or follow the manic episode
Bipolar II DSM Checklist
- presence or history of major depressive episodes
- presence or history of hypomanic episodes
- no history of manic episodes
diagnosing bipolar disorders
- 1-2.8% of all adults have bipolar disorder at any given time
- 4.4% have some at some point in life
- onset is 15-44 years old
- no gender differences
- higher rates in low income populations
clyclothymic disorder
- numerous periods of hypomanic symptoms and mild depression symptoms
- symptoms continue for at least 2 years with typical moods for a day or weeks in between
- may evolve into bipolar I or II
Biological Model of Bipolar Disorder
Neurotransmitter activity, ion activity, brain structure and circuitry, genetic factors
Neurotransmitter activity in Bipolar Disorder
mania may be related to high norepinephrine activity with a low level serotonin activity
ion activity in bipolar disorder
improper transport of ions back and forth between the outside and inside of a neuron's membrane
brain structure and circuitry in Bipolar disorder
Brain imaging and postmortem studies have shown irregular brain structures in people with ____ ____ in particular the basal ganglia and cerebellum
Genetic factors in Bipolar disorder
people inherit a biological predisposition to develop this disorder
Biological treatment for Bipolar Disorder
Mood stabilizing drugs
- lithium (narrow therapeutic window)
- antiseizure drugs
- antipsychotic drugs
Adjunctive psychotherapy
-individual, group, or family therapy
- doubles likelihood that people with bipolar disorders continue to take their medicine properly
- helps reduce hospitalizations, improve social functioning, increase patient's ability to obtain and hold a job
Suicide
one of the worlds leading causes of death in the world
Common Predictors of Suicide
depression, substance/gambling addiction, suicidal ideation, talk or preparation, prior attempts, lethal methods, isolation, loneliness, hopelessness, impulsivity, and risk taking, being an older white male, modeling of suicide, economic or work problems, marital/family problems, stress/stressful events, psychosis, physical illness, sleep problems
older-Elderly white men (85+)
group most at risk of suicide
Biggest Indicator for suicide
Prior attempts
Treatments for suicide
- keep the patient alive
- reduce psychological pain
- achieve nonsuicidal state of mind and a sense of hope
- develop of better ways of stress management
Assessment of Suicide
- Therapists must ask about suicidality
- Ideation
- Plan
- Intent
Passive Ideation
thoughts of death, escape, or not wanting to be here
Active Ideation
specific thoughts about methods or plans, desire and intent to die
Assessing Suicide Plan
Looks at how specific it is and if they seem to be an active threat to themselves
Assessing Suicide Intent
seeing if the person can agree to not kill themselves for at least 24 hours, if not then they need hospitalization
Goals of Suicide Prevention initial contact
- establishing positive relationship
- understanding and clarifying the problem
- assessing suicide potential
- assessing and mobilizing the caller's resources
- formulating a plan for getting help
Longer-term prevention for suicide
- referral
- therapy (establishing support and hope)
- reduction of access to common suicide means (gun control, or car emission detectors)
Stats of substance use disorder
- 16.5% of all people over the age of 11 in the US have this disorder
Substance intoxication
changes in behavior, emotion, thinking caused by substances
substance use disorders
maladaptive behavior patterns and reactions caused by repeated substance use
tolerance
need for increasing doses of substances to produced desired effect
withdrawal
unpleasant and sometimes dangerous symptoms occurring with drug stopping or cutting back
Substance Use Disorder DSM Checklist
- displays maladaptive pattern of substance use leading to significant distress or impairment
- two of the following symptoms within a year:
a.) substance often taken in larger amounts or over a longer period than intended
b.) unsuccessful efforts or persistent desire to reduce or control substance
c.) much time spent trying to obtain, use, or recover from substance use
d.) failure to fulfill major role obligations at work, school, or home as a result of repeated use.
e.) continued use of substance despite persistent social or interpersonal problems caused by it
f.) cessation or reduction of important social, occupational, or recreational activities because of substance use
g.) continuing to use in situations where poses physical risk
h.) continuing to use despite awareness that is causing or worsening a physical or psychological problem
i.) craving for substance
j.) tolerance effects
k.) withdrawal reactions
depressants
slows the activity of the central nervous system
- reduce tensions and inhibitors
- may interfere with judgement, motor activity, and concentration
(alcohol, sedative-hypnotic drugs, opioids)
Alcohol
increases GABA
Alcohol use disorder
- 10.6% of population over age 11
- 4:3 men to women
- tolerance increases consumption level
- variety of negative withdrawal symptoms (delirium tremens (DTs))
- regular consumption affects cognition, social life, and work behaviors
- damage in the brain, liver, fetal alcohol syndrome, motor vehicle accidents
sedative-hypnotic (anxiolytic) drugs effects
- produce feelings of relaxation and drowsiness to reduce anxiety and help people sleep
- low doses = calming or sedative effect
- high doses = sleep inducers or hypnotics
types of sedative-hypnotic drugs
barbiturates and benzodiazepines
barbituates
widely prescribed for first half of twentieth century; largely replaced
Benzodiazepines
- increases GABA activity
- long term use can cause cognitive impairment
- in high doses, can cause intoxication and lead to sedative-hypnotic use disorder
- can be prescribed for anxiety
- tolerance and withdrawal
opioids
- include natural (opium, heroin, morphine, codeine) and synthetic (methadone) drugs
- know collectively as narcotics
- causes CNS depression
- attack to endorphin-related brain receptors
- used for pain relief (morphine, codeine, oxycodone)
Stats of opioids
- each drug has a different strength, speed of action, and tolerance level
- about 13% over age of 11 have taken illicit opioids in the past year
Opioid use disorder
- after a few weeks, user may become caught in a pattern of abuse/dependence
- tolerance for the drug quickly builds
- withdrawal occurs when drug ingestion stops
- risk of overdose, impure drugs, dirty needles
Stimulants
- increase the activity of the central nervous system
- increases blood pressure, heart rate, and alertness
- rapid behavior and thinking
- common stimulants: cocaine, amphetamines, caffeine
cociane
- increases dopamine at key neurons throughout brain as well as norepinephrine and serotonin
- risk of psychosis
amphetamines (amphetamine, dextroamphetamine)
- prescribed for ADHD
- Misuse common among college students
- 1 of 10 undergraduates acquire this drug without prescriptions (stimulant diversion)
Methamphetamine
- serious negative effects on physical, mental, legal and social life
- increased ER visits
- induced psychosis
Stimulant use disorder
- drug dominates the individual's life
- leads to poor functioning in social relationships and at work
- tolerance and withdrawal
- Annual rates among people older than age 11
- cocaine 0.5%
- methamphetamines 0.6%
other amphetamines 0.5%
Hallucinogens (psychedelic drugs)
- produce powerful changes primarily in sensory perception (trips)
- natural ___: Lysergic acid diethylamide (LSD), mescaline, psilocybin, MDMA (ecstasy)
Lysergic Acid Diethylamide (LSD)
- one of the most powerful of this drug
- increased and altered sensory perception, psychological changes, and physical symptoms
- hallucinations and synesthesia
- produces these symptoms by binding to serotonin receptors
- tolerance and withdrawals are rare
- dangers: self-injury, bad trips, and flashbacks
cannabis
- produced from hemp plant
- major active ingredient (THC)
- hallucinogenic, depressant, and stimulant effects
- binds to cannaboid receptors (brain and gut)
Cannabis use disorder
- influenced by regular use
- about 6% of people in the US
- current weed is strong
- Dangers: tolerance and withdrawal symptoms, panic reactions, accidents, long-term health problems/reproductive problems
Cannabis's role in society
- medical use is allowed in majority of states
- reduces nausea and vomiting
- stimulates appetite
- recreational use legal in nearly half the states
polysubstance use
people who often take more than one drug at a time
synergistic effects of polysubstance use
- similar actions lead to potentiated effects
- heightened risk of overdose
- opposite (antagonistic) actions
- does not cancel the other out so heavy loads
Sociocultural view of Substance use disorder
poverty, stress, and families that value/tolerate drug use
Psychodynamic view of substance use disorder
have powerful early years dependency needs
Cognitive-Behavioral view of substance use disorder
operant conditioning
- positive reward of getting high
- positive punishment of withdrawal
- negative reward of relief from withdrawal
Classical Conditioning
- triggered by people, cues, or objects are present during drug use
Cannot have a substance use disorder without use = behavior
Biological view of substance use disorder
genetic predisposition
- Irregular form of dopamine-2 (D-2) receptor gene in people with substance use disorder
neurotransmitters
brain circuits
Neurotransmitter- focused explanation of drug tolerance and withdrawal symptoms
- cutbacks in the brain's production of particular neurotransmitters during chronic drug use
- changes in receptors lead to cravings
Brain Circuits for Substance use disorder
- reward circuit (reward center)
- pleasure pathway
- dopamine is the key neurotransmitter
- drugs stimulate structures directly and indirectly
Psychodynamic therapies for Substance use disorder
- clients helped to become aware of and correct underlying needs and conflicts related to drug use
- not highly effective; more useful when combined in multidimensional treatment program
Cognitive-behavioral treatment for substance use disorder
- clients are helped to identify and change behaviors and cognitions that contribute to patterns of substance misuse
- interventions: contingency management, relapse-prevention training, acceptance and commitment therapy (ACT)
Biological treatments for substance use disorder
- help people withdraw, abstain, or maintain level of use without further increases
- detoxification
- drug maintenance therapy
detoxification
- systematic and medically supervised withdrawal
- antagonist drugs
- intended to help the person resist falling back into a pattern of substance use disorder or dependence
- opioid antagonist drug is naloxone (narcan)
drug maintenance therapy
methadone maintenance programs are designed to provide a safe, legally and medically supervised substitute for heroin
Sociocultural therapies for substance use disorder
- believe psychological problems emerge in a social setting and best treated in a social context
- self-help and residential treatment programs
- culture and gender-sensitive programs
- community prevention programs
Self-help programs for substance use disorder
groups like AA (#1 group for all types of addictions)
- no therapist help them
- run by people who are longer term sober
- help each other to reach sobriety
- tokens are a positive reward
- getting a sponsor is someone you can call and be a model of sobriety for you
Gambling disorder
- addictive nature of the behavior
- genetic predisposition
- heightened dopamine activity when gambling
- impulsive, novelty-seeking personality style
- repeated cognitive errors
- men are much more likely to be addicted
treatment for gambling disorder
- relapse-prevention training
- biological approaches (opioid antagonists)
- self-help programs (gamblers anonymous)