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Lecture 5

PSYC Week 5 Lecture Notes Oct 10.docx

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Queen's University
PSYC 100
Ingrid Johnsrude

PSYC Week 5 Lecture October 10, 2012 The Nature and Causes of Mental Disorders, Part II Mood Disorders  Mood: pervasive and sustained emotional response that may affect person’s perceptions o Depression o Mania (i.e., extreme elation)  How sad is too sad?  Can we be in too good of a mood? Mood Disorders – Episodes  Major Depressive Episode: five or more of the following present during the same 2-week period and represent change from previous functioning: 1. Depressed mood (can be irritable in youth) 2. Diminished pleasure/interest in almost all activities 3. Significant change in weight or appetite 4. Insomnia or hypersomnia 5. Psychomotor agitation or retardation 6. Fatigue or loss of energy 7. Feelings of worthlessness or excessive/inappropriate guilt 8. Diminished ability to think/concentrate ***FINISH NOTES  Manic Episode: abnormally and persistently elevated, expansive, or irritable mood lasting at least one week (or shorter if hospitalized). At least 3 of the symptoms present: 1. Inflated self-esteem or grandiosity 2. Decreased need for sleep 3. Extra talkative or pressured speech 4. Flight of ideas; “mind racing” 5. Distractibility 6. Increase in goal-directed activity 7. Excessive involvement in pleasurable activities that are dangers (e.g., sex, shopping sprees, gambling…)  Mixed Episode: criteria met for Manic Episode and Major Depressive Episode for 1 week  Hypomanic Episode: criteria met for Manic Episode for 4 days, but symptoms NOT severe enough to cause impairment or hospitalization  Major Depressive Disorder o One or more major depressive episodes without history of Manic, Mixed or Hypomanic Episodes PSYC Week 5 Lecture October 10, 2012  Bipolar 1 Disorder: o One or more Manic Episodes OR Mixed Episodes o Major Depressive Episode MAY have occurred in past/present (but not required for diagnosis)  Bipolar 2 Disorder: o One or more major depressive episodes with at leas ton Hypomanic Episodes  Dysthymic Disorder: o Chronically depressed mood for at least 2 years (no Major Depressive Episode or else it’s called “double depression”)  Cyclothymic Disorder: o Chronic fluctuating mood between hypomania and depressive symptoms for at least 2 years Mood Disorders: Possible Causes  Cognitive/Environmental o Example: appraise situations negatively  Negative events: stable/global/internal causes  Positive events: unstable/specific/external causes o “Cognitive triad”: negative thoughts about self, present, future  Physiological o Serotonin; norepinephrine  Genetic Dissociative Disorders  Dissociation: a disruption in the usually integrated functions of consciousness, memory, identity, and perception  Dissociative Amnesia: o One or more episodes of inability to recall important personal information; usually traumatic in nature; not explained in ordinary forgetfulness o Does not happen during the course of another psychological disorder (e.g., PTSD), and is not due to a general medical condition (e.g., brain injury) o As always, clinically significant distress/impairment  Dissociative Fugue: o Sudden, unexpected travel away from home or work wit
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