Current Research into Neurotransmitter Systems Has Produced the 'Permissive' Hypothesis

question 95

Multiple Choice

Current research into neurotransmitter systems has produced the 'permissive' hypothesis, which states that

• A)low levels of serotonin are sufficient to explain the aetiology of mood disorders.
• B)the noradrenaline system regulates serotonin levels; if noradrenaline is low, depression will occur.
• C)when serotonin levels are low, other neurotransmitter systems become dysregulated and contribute to mood irregularities.
• D)the absolute levels of neurotransmitters are more significant in mood regulation than the overall balance of the various neurotransmitters.

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