The minimum time for which the stimulus must be applied in order to obtaind a response is

Options

A. Conversion time
B. Conduction time
C. Presentation time
D. Reaction time.

Answer

To solve the question regarding the minimum time for which a stimulus must be applied in order to obtain a response, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question is asking for the minimum duration that a stimulus needs to be applied for a response to occur.

2. **Identify Key Terms**:
- **Reaction Time**: This is the time interval needed for the required response after the stimulus is presented.
- **Presentation Time**: This refers to the minimum time that a stimulus must be applied for a response to be generated.

3. **Analyze the Options**:
- **Option A: Convergent Time** - This term is not commonly used in the context of stimulus-response relationships.
- **Option B: Conduction Time** - This relates to the time taken for a signal to travel through the nervous system, not the time for stimulus application.
- **Option C: Presentation Time** - This is the correct term that refers to the minimum time a stimulus must be applied for a response.
- **Option D: Reaction Time** - This is the time taken to respond after the stimulus has been applied, not the time the stimulus needs to be applied.

4. **Select the Correct Answer**: Based on the definitions and analysis, the correct answer is **Option C: Presentation Time**.

### Final Answer:
The minimum time for which the stimulus must be applied in order to obtain a response is **Presentation Time** (Option C).

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