Biological Foundations of Mental Health: Reward System of the Brain

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Questions and Answers

What is the role of the substantia nigra pars compacta in the brain?

  • Activate the direct pathway
  • Suppress the indirect pathway
  • Inhibit the putamen and caudate
  • Provide dopaminergic input to the putamen and caudate (correct)

Which specific neurons are lost in Parkinson's disease?

  • Dopaminergic neurons (correct)
  • Serotonin neurons
  • GABAergic neurons
  • Cholinergic neurons

What happens to the direct pathway in Parkinson's disease?

  • Becomes less active (correct)
  • Remains unaffected
  • Switches to inhibitory mode
  • Becomes more active

Which part of the brain is primarily affected by the loss of dopamine in Parkinson's disease?

<p>Striatum (B)</p> Signup and view all the answers

What results from the indirect pathway becoming more active in Parkinson's disease?

<p>Increased tremors (C)</p> Signup and view all the answers

Which receptors respond differently to dopamine in Parkinson's disease?

<p>D1 and D2 receptors (B)</p> Signup and view all the answers

What key symptom of Parkinson's disease is a result of action selection suppression via the direct pathway?

<p>Bradykinesia (C)</p> Signup and view all the answers

'Rigidity' as a symptom of Parkinson's disease is a consequence of:

<p>'Absence of dopamine' (B)</p> Signup and view all the answers

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