31_PsychDisorders_II_6 - Biological underpinnings...

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Psychology 2: Introduction to Psychology Day 31 topics Depression Bipolar disorder Schizophrenia Conditions to be discussed Anxiety disorders Dissociative disorders Mood disorders Depression Bipolar disorder Schizophrenia Personality disorders Major depressive disorder DSM diagnostic criteria Characteristic symptoms Emotional Motivational Behavioral Cognitive Physical Biological underpinnings Heritability estimates Neurotransmitters Catecholamine theory (Norepinephrine) Indoleamine theory (Serotonin) But it’s complicated… Differences in brain activation Left and right prefrontal cortex Psychological underpinnings Distorted view of reality Helplessness theory Judgments, memories biased Symbolic loss (Freud) Negative weightings unbalanced Seasonal affective disorder (SAD) Depressive pattern triggered by change in weather/light Tends to emerge in Fall/Winter Even more common in higher altitudes
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Bipolar disorder DSM diagnostic criteria Alternating between states Highs (mania) Lows (depression)
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Unformatted text preview: Biological underpinnings Heritability estimates Neurotransmitters High levels of norepinephrine? No proof of link with serotonin Permissive theory Low serotonin opens the door…? Schizophrenia DSM diagnostic criteria Positive symptoms (+) Negative symptoms ( ‐ ) Characteristic symptoms Delusions Hallucinations Disorganized speech Disorganized behavior Negative symptoms Subtypes of Schizophrenia Paranoid Absurd delusions and hallucinations Catatonic Alternating between extreme/no motion, actions Disorganized Emotional distortion and blunting Undifferentiated Potential precursor to an above type Biological underpinnings Heritability estimates Dopamine hypothesis Neuroanatomy Larger ventricles Extensive neuronal loss Psychological underpinnings Development in a stressful environment Expressed emotion Individual made worse by environment? Environment made worse by individual?...
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31_PsychDisorders_II_6 - Biological underpinnings...

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