Question

how is a difference threshold distinct from an absolute threshold? an absolute threshold converts energy outside the body into brain activity. a difference threshold converts energy outside the body into brain activity. a difference threshold refers to a minimum level for detection, while absolute threshold refers to a change in stimulus. a difference threshold refers to an observable change, while absolute threshold refers to a minimum level for detection.

Explanation:

To solve this, we analyze each option:

• The first two options are incorrect because converting external energy to brain activity is about transduction (sensory processing), not thresholds.
• The third option swaps the definitions: absolute threshold is the minimum for detection, difference threshold is about change.
• The fourth option correctly defines difference threshold (observable change in stimulus) and absolute threshold (minimum level to detect a stimulus).

Answer:

D. A difference threshold refers to an observable change, while absolute threshold refers to a minimum level for detection. (Note: Assuming the options are labeled A, B, C, D in order as presented. If the original labels differ, adjust accordingly, but the content of the correct option is as stated.)