Dopamine and Psychoactive Drugs Quiz
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Questions and Answers

What is the main function of the three layers of meninges in the brain?

  • Regulate neurotransmitter levels in the brain
  • Facilitate communication between neurons
  • Provide electrical impulses for brain function
  • Cover and protect the brain (correct)

    • In the context of Parkinson's disease, which part of the nervous system is primarily affected?

  • Sensory System
  • Motor System (correct)
  • Peripheral Nervous System (PNS)
  • Central Nervous System (CNS)

    • How do psychoactive drugs typically affect neurotransmitter levels in the brain?

  • Enhance neurotransmitter reuptake
  • Decrease neurotransmitter release
  • Alter neurotransmitter activity (correct)
  • Increase neurotransmitter production

    • Which neurotransmitter is notably affected by the consumption of alcohol?

    <p>GABA (Gamma-aminobutyric acid)</p> Signup and view all the answers

    What is the clinical implication of the blood-brain barrier in relation to drug delivery?

    <p>It restricts the entry of psychoactive drugs into the brain</p> Signup and view all the answers

    How does cerebrospinal fluid (CSF) contribute to brain function?

    <p>It supports brain structure and maintains its shape</p> Signup and view all the answers

    Why is the brain described as 'very soft and jellylike'?

    <p>To protect against damage from external forces</p> Signup and view all the answers

    How does concussion differ from Chronic Traumatic Encephalopathy (CTE)?

    <p>Concussion results from one severe injury, while CTE develops over time</p> Signup and view all the answers

    Which neurotransmitter is most affected by alcohol consumption?

    <p>GABA</p> Signup and view all the answers

    What is the main implication of the Blood-Brain Barrier on drug effectiveness?

    <p>Limits certain drug molecules from entering the brain</p> Signup and view all the answers

    Which committee oversees the use of animals for scientific research at CUHK?

    <p>AEEC</p> Signup and view all the answers

    Which components can pass through the Blood-Brain Barrier using active transport systems?

    <p>Glucose and amino acids</p> Signup and view all the answers

    What is the primary purpose of the bath of cerebrospinal fluid surrounding the brain?

    <p>To absorb shocks and reduce pressure on the base of the brain</p> Signup and view all the answers

    What is the most effective way to understand and treat diseases in complex, living organisms?

    <p>Animal research</p> Signup and view all the answers

    In neuroethics, what does the field primarily focus on?

    <p>Best practices in neuroscience research</p> Signup and view all the answers

    What imaging technique was available in the 1800s to study the brain?

    <p>X-ray</p> Signup and view all the answers

    If someone loses behavior X after damage to brain lesion Y, what presumption can be made according to neuropsychology?

    <p>Y caused X</p> Signup and view all the answers

    Which neurotransmitter is affected by alcohol consumption?

    <p>GABA</p> Signup and view all the answers

    What is the chemical composition of L-DOPA compared to dopamine?

    <p>Slightly different</p> Signup and view all the answers

    Which type of drugs can stimulate the release of dopamine?

    <p>Dopamine agonists</p> Signup and view all the answers

    How does alcohol affect glutamate neurotransmitter function?

    <p>Prevents it from acting</p> Signup and view all the answers

    Which brain regions are most affected by alcohol in terms of impulse control and decision making?

    <p>Frontal lobes</p> Signup and view all the answers

    What happens when GABA receptors are excited by GABA neurotransmitter?

    <p>Hyperpolarization of the cell membrane</p> Signup and view all the answers

    How does alcohol affect the central nervous system (CNS) in relation to GABA neurotransmitter function?

    <p>Produces greater inhibition in CNS</p> Signup and view all the answers

    What is the primary technique mentioned in the text at the beginning of the 1900s for studying the brain?

    <p>Staining and brain sectioning</p> Signup and view all the answers

    In the context of Neuropsychology, what is presumed when someone loses behavior X after damage to brain lesion Y?

    <p>Y was involved in generating X</p> Signup and view all the answers

    How is Transcranial Magnetic Stimulation (TMS) performed according to the text?

    <p>By placing a wire coil adjacent to the skull and applying high-voltage current</p> Signup and view all the answers

    Which neurotransmitter is affected by alcohol consumption?

    <p>GABA</p> Signup and view all the answers

    What clinical relevance does studying Brodmann's areas have in understanding Parkinson's disease?

    <p>Linking specific functions to areas of the cerebral cortex to study symptoms of Parkinson's disease</p> Signup and view all the answers

    What does relatively noninvasive brain stimulation like Transcranial Magnetic Stimulation (TMS) involve?

    <p>Placing a wire coil near the skull and creating a magnetic field to affect neuron activity</p> Signup and view all the answers

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