Exam 2 Flashcards
Chapter: 5, 6, 7
Mood Disorders
Depression & Bipolar Disorders
Depressive Disorders
- Major Depressive Disorder (MDD)
- Persistent Depressive Disorder (PDD)
Components of Depression
Emotional
Cognitive
Somatic
Behavioral
Components of Depression: Emotional
- Sad mood
- Anhedonia: loss of interest or pleasure in usual activity
Anhedonia
The loss of interest or pleasure in usual activity
Components of Depression: Cognitive
- Trouble concentrating/ easily distracted
- Trouble making decisions
- Thoughts of death/hopelessness about the future
- Guilt
Components of Depression: Somatic
- Fatigue/ heavy feeling
- Changes in appetite (not eating, or excessive eating)
- Changes in sleep
Components of Depression: Behavioral
Psychomotor Retardation:
- Very slow movement or talking or processing (seen less in out-patient, more in in-patient)
Psychomotor Agitation:
- Increased movement or mental activity
Major Depressive Disorder:
DSM-5 Diagnostic Criteria
- 5+ symptoms present for at least 2 weeks:
- Must Include: Sad Mood and/or Anhedonia)
- Symptoms affect most of the day almost every day
- 2+ weeks
- Symptoms cause significant impairment/ distress (in daily life)
Persistent Depressive Disorder:
DSM-5 Diagnostic Criteria
Old name: Dysthymia
** PPD = Chronic condition**
Diagnostic Criteria:
- Depressed mood more days than not for 2+ years
- Additional 2+ other symptoms
Does not qualify if there a break in symptoms is 2+ months
Depression:
Course and frequency
Average Onset Age: early 30s
- (decreased over last 50 years)
Course: ~50% recover within 6 months
COVID: depression rates rose dramatically among children/teens
Depression:
Prevalence (+ Disability Rates)
Prevalence:
- ~16–20% of population experiences depression
- women = 2x more likely be diagnosed w depression
- differences in gender rates peak during adolescence)
Disability Rates:
- Depression =10% of disability worldwide
Depression:
Etiology (causes)
Social Factors:
- stressful life events
Psychological Factors:
- Cognitive theories (ie: The Attribution Theory)
Biological Factors:
- Heritability + Role of Neurotransmitters
Depression - Etiology (causes)
Social Factors
Stressful life events (ie: poverty)
predict Depressive Disorders
- 42-67% of people report a stressful life event in year prior to depression diagnosis:
Depression: Etiology (causes)
Psychological Factors
(Attributions Theory)
Attributions Theory: depression can be caused or worsened by how people explain negative events and how they either attribute outcomes to internal or external causes.
Attribution Style:
-
Internal, Stable, Global (Higher Depression Risk)
- Internal: I failed bc I’m not smart enough
- Stable: I’m not going to be able to keep a job or do well in school
- Global: I’ll fail at everything I do in the future
-
External, Unstable, Specific (Lower Depression Risk)
- External: This was beyond my control
- Unstable: This job was just too demanding for me right now
- Specific: My next job will be a better fit for me
Depression - Etiology (causes)
Biological Factors
(heritability + brain)
Heritability: ~50%
Neurotransmitters:
- Involved: Serotonin, Dopamine, Norepinephrine, and GABA
- Variety of symptoms suggest involvement of different neurotransmitters
-
Serotonin = Leading Theory
- low levels of serotonin cause depression
- Research = Mixed (serotonin: likely not the only cause, but a reaction)
Depression - Etiology (Causes)
Cognitive Theories of Depression
Cognitive Theory: The way we think about events influences how react to them.
- Automatic Negative Thoughts (about self & environment) play a central role in the development and duration of depression
Depression:
Relevant Brain Structures
Dorsolateral Prefrontal Cortex
Ventromedial Prefrontal Cortex
Anterior Cingulate Cortex
Amygdala
Depression - Relevant Brain Structures:
Dorsolateral Prefrontal Cortex
Function: Planning and executive functioning
Pattern: Decreased activity in some studies
Depression - Relevant Brain Structures:
Ventromedial Prefrontal Cortex
Function: Regulating emotion
Pattern: Increased activity in some studies
Depression - Relevant Brain Structures:
Amygdala
Function: emotional salience
Pattern: Increased activity in response to threat/negative stimuli
Depression - Relevant Brain Structures:
Anterior Cingulate Cortex
Function: motivation, emotion regulation
Pattern: Decreased activity
Depression:
Depression Treatment Types:
Talk Therapy + Medications
Depression - Treatment Types:
Talk Therapy
1. Cognitive Behavioral Therapy:
-
Behavioral Activation: Increased engagement with positive/pleasant activities (ex: exercise)
- Engage in positive activities → Experience more pleasure → Improve depressed mood
- Thoughts: Identify Cognitive Distortions + feelings (ex: Catastrophizing)
2. Mindfulness-Based Cognitive Therapy:
- Incorporating Mindfulness Techniques into a Cognitive Domain.
- Goal: Thoughts are not facts (observe don’t act)
- Very useful in reducing relapse of depression
Depression: Treatment Types
Medication
- SSRIs → Selective Serotonin Reuptake Inhibitors
- SNRIs → Serotonin and Norepinephrine Reuptake Inhibitors
- Electroconvulsive Therapy (ECT)
-
Transcranial-Magnetic Stimulation (TMS)
- Applies a magnetic pulse to brain
- For treatment-resistant depression
-
Ketamine
- Theory: Suppresses neurotransmitter activity & alters activation patterns & connectivity
- Limited long-term research (Be Cautious)
- Seems to require higher doses
- Exercise / Physical Activity
Depression: Treatment
Combinations & Comparisons of Treatments
Therapy + Medication:
*Combining the two is better than either alone by 10% – 20%
* Medications quicker, therapy longer-lasting effects
Cognitive Behavioral Therapy (alone):
- As effective as medication for severe depression
- CBT = more effective than medication at preventing relapse
Bipolar Disorder Types
Two Types:
1. Bipolar Disorder I.
2. Bipolar Disorder II.
_Bipolar I. _→ at least one Manic Episode
Bipolar II.→ Includes hypomanic episodes – not full manic episodes
Bipolar Disorder: Episode Types:
Manic Episode & Hypomanic Episode
Manic Episode: Mania that…
- 1+ weeks, Most of the day, Nearly every day OR requires hospitalization
Hypomanic Episode:
- 4+ days of clear changes in functioning/behavior BUT impairmentisn’t as significant
Bipolar Disorder:
DSM-5 Criteria: Mania/Manic Episode
Must have: both
1. Distinctly elevated or irritable mood
2. Abnormally increased activity or energy
Must have 3 of the following:
- Increased goal-directed activity
- Talkative/ rapid speech
- Racing thoughts
- Decreased need for sleep
- Increased self-esteem
- Distractibility
- Excessive risky behavior
Bipolar Disorder:
Prevalence, Onset Age, Gender
Prevalence:
- Bipolar I. → affects ~1% of population
- Bipolar Types combined → ~ 4%
Average Onset Age: Between 18 - 22 years old
Gender:
- Prevalence: No gender differences
- Symptoms: Women report more depressive episodes
Bipolar Disorder - Suicide Risk
~ 15% of people with a diagnosis die by suicide
25% report suicide attempts
> 50% report suicidal ideation in the past 12 months
Bipolar Disorder:
Biological - Gene’s
Heritability = high.
* Ranges from 70-90% heritability
Shares genetic risk factors with schizophrenia and MDD
Bipolar Disorder: Etiology (causes)
Biological: Brain + Genetics
Heritability = high.
* Ranges from 70-90% heritability
Genetics → Shares genetic risk factors with Schizophrenia and MDD
Brain:
- Reduced Volume: Prefrontal, & Limbic Structures
-
Increased Activation: emotion regions (amygdala + striatum)
- increased response to high rewards
- Mania → Hypersensitivity to dopamine receptors
Bipolar Disorder:
Reward Sensitivity
Reward Sensitivity: How motivated/excited a person is to obtain a reward
- increased response to reward cues
- Reward Sensitivity: Predicts BP onset & severity of symptoms
Bipolar Disorder:
Goal Striving
Goal Striving: Increased pursuit of extreme goals
- Ie: if you do this thing you will win a million dollars
- Atypical Goal Striving → Predicts future Mania symptoms & onset of BD
Bipolar Disorder: Treatments
- Medication: 1st line of treatment
- Talk Therapy: very useful when paired with medication
Bipolar Disorder Treatments: Medication
Medications:
- Mood stabilizers
- Anticonvulsants
- Antipsychotics
Mood Stabilizer: Lithium
- Very effective Mood Stabilizer
* 1/3 of patients = dramatic improvement
* 1/3 = some improvement
* 1/3 = no improvement - Protective Against Suicide
Antidepressants = Risky Meds:
- Potential to trigger Mania
* BUT helpful when paired with Mood Stabilizers to prevent triggering mania
Risky Behaviors: Medication non-compliance is high in BD
Bipolar Disorder Treatments: Talk Therapy
- Psychoeducation & Family-Focused Education
-
Social Rhythms Therapy
- Create Routines + Life Charts to help regulate mood (ie: sleep)
- Life Carting: Identifying personal patterns & triggers
-
Goal Regulation
- Break down large goals into smaller steps (goal pacing)
-
Behavioral Activation
- use it carefully start small, build up
Bipolar Disorder: Art & Creativity
Bipolar Disorder: x10 more prevalent in artists
Suicide: Who is affected?
Experience that cuts across disorders
- ie: bipolar disorder, schizophrenia, depression, substance abuse, anorexia
Suicide: Prevalence
Suicide is the 11th leading cause of death
- 2nd leading cause in ages: 10 - 35 years old
Suicide: Gender Differences
- Men ~4x to commit suicide
- Women are more likely to attempt suicide
- Highest death rates in White Men
Suicidal Thoughts
Adolescents:
- 24% of high school girls and 15% boys have serious suicidal thoughts
- Most students that had suicidal thoughts did not act on them
- more common in people with depression
Suicide:
Social & Psychological Influences
Social Influences:
- Economic recessions
- Media reports of suicide
- Social Isolation
- Access to means
Psychological Influences:
- Difficulty with problem-solving
- Hopelessness
- Impulsivity
Suicide: Treatments
- Safety Protocols preventative
- Hospitalization
- Means Restriction (decrease access to lethal things)
2: Evidence-Based Treatments
* Dialectical Behavior Therapy (DBT)
* Cognitive Therapy for Suicide Prevention (CT-SP)
Suicide: Preventing Suicide
- Social / Environmental Prevention:
- Healthcare access + Government programs
- Reduce stigma of mental illness
- Treat the associated mental health disorder
Anxiety:
The 5 CORE Anxiety Disorders
- Specific Phobias
- Social Anxiety Disorder (SAD)
- Generalized Anxiety Disorder (GAD)
- Panic Disorder
- Agoraphobia
Anxiety: Fear vs. Anxiety
Fear:
* Present focused: response to immediate danger/threat
* Intensity builds quickly
**Anxiety: **
* Future focused: anticipate and prepare
* ongoing feeling/worry of anticipation
* Example: Thinking about an upcoming project that’s due
Anxiety:
The Yerkes-Dodson Law: Inverted U-Model
There is an optimal level of arousal (stress) that maximizes performance
- Low arousal = low performance
- Moderate arousal = Optimal Performance
- High arousal = declining performance
Anxiety: (fear/anxiety)
“Normal” to “Disordered”
Disordered when…
- Symptoms are pervasive and persistent
- It involves excessive avoidance
- It causes significant distress and impairment