Component 3 Psychology Eduqas

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Schizophrenia: Positive Symptoms

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Schizophrenia: Dopamine Hypothesis

  • Neurotransmitter: A Chemical Substance which diffuses across a Synapse to the Postsynaptic Neurone in order to cause a Biological Response
    • Too much Dopamine = Schizophrenia
  • J.J. Griffith et al: Induced Psychosis in Non-Schizo's volunteers with the administration of Dextro-amphetamine
    • Found that the volunteers demonstrated general abrupt onset of Paranoid Delusions
      • Cold and Detached Emotional Response
  • Dopamine Receptors
    • D1-D5 Receptors
      • In Cerebral Cortex in the Limbic System
        • DRD2 Receptors (D2 Receptor) are highly sensitive
  • Mesolimbic Pathway
    • Dopamine is the key Neurotransmitter
      • Carries signal from Ventral Tegmental Area (VTA) to Nuclues Accumbens (NA)
    • Large amounts of Dopamine are fired in the Synapse due to overstimulation
      • Fire too often or too quick
    • Overstimulation = Positive Symptoms of Schizophrenia, e.g. Hallucinations or Delusions
    • Antipsychotics decrease Dopamine activity = Decrease in Positive Symptoms
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Schizophrenia: Negative Symptoms

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Schizophrenia: Dopamine Hypothesis Evaluation

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Schizophrenia: Genetics

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Schizophrenia: Psychodynamic Approach

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Schizophrenia: Genetics Evaluation

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Schizophrenia: Psychodynamic Approach Evaluation

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Schizophrenia: Cognitive

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Schizophrenia: Dysfunctional Family

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Schizophrenia: Cognitive Evaluation

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Schizophrenia: Dysfunctional Family Evaluation

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Schizophrenia: Sociocultural Factors

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Schizophrenia: Antipsychotics

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Schizophrenia: Sociocultural Factor Evaluation

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Schizophrenia: Antipsychotics Evaluation

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Schizophrenia: CBT

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Schizophrenia: Studies

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Schizophrenia: CBT Evaluation

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Addiction: Positive Symptoms

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Addiction: Dopamine Hypothesis

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Addiction: Negative Symptoms

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Addiction: Dopamine Hypothesis Evaluation

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Addiction: Genetics

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Addiction: Personality

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Addiction: Genetics Evaluation

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Addiction: Personality Evaluation

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Addiction: Cognitive Biases

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Addiction: Peer Influences

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Addiction: Cognitive Biases Evaluation

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Addiction: Peer Influences Evaluation

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Addiction: Role of Media

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Addiction: Agonist and Antagonist Substitution

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Addiction: Role of Media Evaluation

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Addiction: Agonist and Antagonist Substitution Eva

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Addiction: Aversion Therapy

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Addiction: Studies

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Addiction: Aversion Therapy Evaluation

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Crime: Positive Symptoms

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Crime: Inherited Criminality

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Crime: Negative Symptoms

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Crime: Inherited Criminality Evaluation

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Crime: Role of the Amygdala

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Crime: Eysenck's Criminal Personality

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Crime: Role of the Amygdala Evaluation

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Crime: Eysenck's Criminal Personality Evaluation

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Crime: Cognitive Factors

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Crime: Differential Association Theory

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Crime: Cognitive Factors Evaluation

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Crime: Differential Association Theory Evaluation

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Crime: Gender Socialisation

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Crime: Anger Management

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Crime: Gender Socialisation Evaluation

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Crime: Anger Management Evaluation

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Crime: Restorative Justice

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Crime: Studies

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Crime: Restorative Justice Evaluation

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Component 3

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