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?

GABA (Gamma-aminobutyric acid) (A) Signup and view all the answers

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

It restricts the entry of psychoactive drugs into the brain (D) Signup and view all the answers

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

It supports brain structure and maintains its shape (D) Signup and view all the answers

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

To protect against damage from external forces (B) Signup and view all the answers

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

Concussion results from one severe injury, while CTE develops over time (B) Signup and view all the answers

Which neurotransmitter is most affected by alcohol consumption?

GABA (A) Signup and view all the answers

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

Limits certain drug molecules from entering the brain (A) Signup and view all the answers

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

AEEC (B) Signup and view all the answers

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

Glucose and amino acids (A) Signup and view all the answers

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

To absorb shocks and reduce pressure on the base of the brain (D) Signup and view all the answers

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

Animal research (B) Signup and view all the answers

In neuroethics, what does the field primarily focus on?

Best practices in neuroscience research (D) Signup and view all the answers

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

X-ray (D) 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?

Y caused X (D) Signup and view all the answers

Which neurotransmitter is affected by alcohol consumption?

GABA (C) Signup and view all the answers

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

Slightly different (B) Signup and view all the answers

Which type of drugs can stimulate the release of dopamine?

Dopamine agonists (A) Signup and view all the answers

How does alcohol affect glutamate neurotransmitter function?

Prevents it from acting (D) Signup and view all the answers

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

Frontal lobes (B) Signup and view all the answers

What happens when GABA receptors are excited by GABA neurotransmitter?

Hyperpolarization of the cell membrane (C) Signup and view all the answers

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

Produces greater inhibition in CNS (B) 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?

Staining and brain sectioning (C) 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?

Y was involved in generating X (C) Signup and view all the answers

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

By placing a wire coil adjacent to the skull and applying high-voltage current (A) Signup and view all the answers

Which neurotransmitter is affected by alcohol consumption?

GABA (A) Signup and view all the answers

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

Linking specific functions to areas of the cerebral cortex to study symptoms of Parkinson's disease (D) Signup and view all the answers

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

Placing a wire coil near the skull and creating a magnetic field to affect neuron activity (A) Signup and view all the answers

Flashcards

Meninges Function

Cover and protect the brain.

Parkinson's Impact

Primarily affects the motor system.