Which term refers to pairing CS with US across trials when the CS is initially weak?

Which term refers to pairing CS with US across trials when the CS is initially weak?

• A. Respondent Acquisition
• B. Simultaneous Conditioning
• C. Trace Conditioning
• D. Phylogenetic

Answer: (A)

Respondent Acquisition is the term that describes this process. In classical (Pavlovian) conditioning, acquisition refers to the gradual strengthening of the conditioned response as the conditioned stimulus and unconditioned stimulus are paired across trials. If the CS starts weak, repeated pairings with the US build the CS–US association, leading to a stronger reflexive response to the CS over time. Simultaneous conditioning would involve presenting the CS and US at the same moment, which often yields weaker learning because the CS doesn’t reliably signal the US. Trace conditioning involves a gap between the CS and the US, a different temporal arrangement than the straightforward pairing across trials. Phylogenetic is unrelated to conditioning, referring to evolutionary relationships rather than learning processes.

Respondent Acquisition is the term that describes this process. In classical (Pavlovian) conditioning, acquisition refers to the gradual strengthening of the conditioned response as the conditioned stimulus and unconditioned stimulus are paired across trials. If the CS starts weak, repeated pairings with the US build the CS–US association, leading to a stronger reflexive response to the CS over time.

Simultaneous conditioning would involve presenting the CS and US at the same moment, which often yields weaker learning because the CS doesn’t reliably signal the US. Trace conditioning involves a gap between the CS and the US, a different temporal arrangement than the straightforward pairing across trials. Phylogenetic is unrelated to conditioning, referring to evolutionary relationships rather than learning processes.