Which of the Following Is NOT True of Huntington's Disease

question 12

Multiple Choice

Which of the following is NOT true of Huntington's Disease?

• A) It is caused by a trinucleotide repeat of CAG in the huntingtin gene.
• B) In advanced stages, symptoms include involuntary movements and cognitive impairment.
• C) Huntington's disease primarily involves neuronal cell death in the thalamus
• D) Medium spiny neurons are susceptible to the neurotoxic effects of abnormal Huntington protein.

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Definitions:

Higher-Order Conditioning

The phenomenon that a stimulus (CS2) can elicit a conditioned response (CR) even without being paired with the unconditioned stimulus (UCS) if the CS2 is paired with a conditioned stimulus (CS1).

Counterconditioning

The elimination of a conditioned response when the conditioned stimulus is paired with an opponent or antagonistic unconditioned stimulus

Stimulus Substitution

A theory in classical conditioning suggesting that a conditioned stimulus acts as a substitute for an unconditioned stimulus, eliciting a similar response.

Basolateral Amygdala

A region of the amygdala involved in processing emotional responses, memory, and decision-making, crucial for fear conditioning and associative learning.