Neural and genetic explanations for OCD

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    • What neurotransmitter is involved in the neural explanations for OCD?
      Serotonin
    • How does low serotonin levels affect mood-based information transmission?
      It affects the transmission of the mood-based information that serotonin carries
    • What might result from low levels of serotonin in the synapse?

      It might result in obsessive thoughts
    • Which specific brain area is mentioned as being involved in OCD?
      The parahippocampal gyrus
    • What role does the parahippocampal gyrus play in relation to OCD?
      It is involved with the processing of unpleasant emotions
    • What might deficiencies in the parahippocampal gyrus lead to?
      They may lead to OCD
    • What specific gene marker is mentioned in the genetic explanations for OCD?

      SERT
    • What does the SERT gene affect?
      It affects the transport of serotonin
    • What do family studies indicate about the prevalence of OCD among first-degree relatives?
      They indicate a higher percentage (10%) of first-degree relatives having this disorder compared to the prevalence in society (2%)
    • What does the term "polygenic" refer to in the context of OCD?
      It refers to the idea that OCD could be influenced by multiple genes
    • How many genes did Taylor propose could be involved in OCD?
      Up to 230 genes
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