Question

48 mark for review
which of the following statements best describes the role of biological processes in classical conditioning?
a a biologically-based unconditioned stimulus (ucs) must immediately follow a conditioned stimulus (cs) for learning to occur.
b any novel or familiar stimulus could serve as a cs because the biological mechanisms underlying learning are very powerful.
c certain species are biologically predisposed to learn particular associations that enhance their survival.
d biological reinforcers foster learning more quickly than do environmental reinforcers.

Explanation:

Classical conditioning has biological constraints: species have innate predispositions to learn specific stimulus associations that aid survival (e.g., taste aversion in animals, which is a biologically prioritized learning for avoiding toxins).

• Option A is incorrect: in classical conditioning, the unconditioned stimulus (UCS) must precede or occur simultaneously with the conditioned stimulus (CS), not follow it.
• Option B is incorrect: not all stimuli can be a CS; biological predispositions limit which associations are easily learned.
• Option D is incorrect: this refers to operant conditioning (reinforcers), not classical conditioning's core biological role.

Answer:

C. Certain species are biologically predisposed to learn particular associations that enhance their survival.