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Which one of the following statements about anxiolytics is CORRECT?

SSRIs' initial anxiolytic effects are attributed to their agonist action at 5-HT_2A receptors.

❌

Buspirone decreases 5-HTergic transmission via activation of somatodendritic 5HT_1A receptors.

✅

Benzodiazepines and buspirone are equally efficacious for treating acute anxiety.

❌

Diazepam would be appropriate for individuals with a history of substance abuse.

❌

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Which one of the following would MOST LIKELY counteract the development of extrapyramidal symptoms (EPS)?

Antagonism of:

muscarinic receptors.

5-HT₂ receptors.

D₁ receptors.

nicotinic receptors.

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Tricyclic anti-depressants (eg. desipramine) and Noradrenaline-Serotonin Reuptake Inhibitors (NSRIs) (eg. venlafaxine) share a similar mechanism of action, but differ in terms of likely side effects.

Which one of the following side effects would be associated with desipramine, but NOT venlafaxine?

initial increases in anxiety

drowsiness

bradycardia

cheese reaction

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In comparison to older anti-psychotics, newer drugs such as risperidone are MOST LIKELY to be associated with:

5-HT receptor antagonism in the nigrostriatal pathway.

❌

more severe extrapyramidal side effects.

❌

D2 receptor activation in the pre-frontal cortex.

❌

relief of negative symptoms.

✅

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Which one of the following statements about the typical anti-psychotic, chlorpromazine, is CORRECT?

Its therapeutic effects can partially be attributed to an increase in dopamine levels within the pre-frontal cortex.

❌

It will not cause sedation.

❌

It is less likely to be effective for treating the negative symptoms of schizophrenia.

✅

It tends to induce extrapyramidal symptoms (EPS) to a greater degree than haloperidol.

❌

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In exercise 2.5 you are asked to make some replacements in your ray trace to generate a numerical trace.

Copy and paste the output directly from Mathematica into the text box below when using the suggestion to see the output with //N. DO NOT MAKE ANY EDITS.

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The results for 1.2 make sense because both rays just travel in straight lines

True

100%

False

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In exercise 1.2 the correct result for rfb should be

{0.01 + d , 0. + }

✅

{0.01 , d }

{0.01, 0.}

{0.01 + d ,0}