False interpretation of an existing stimulus is termed as
**Core Concept**
Illusion is a false interpretation of an existing stimulus, which can be auditory, visual, or tactile. It occurs when the brain misinterprets or distorts sensory information, leading to a perception that is not based on reality.
**Why the Correct Answer is Right**
The correct answer is related to the concept of perception and the way our brain processes sensory information. When we perceive an illusion, it's because our brain is misinterpreting the sensory data it receives. This can occur due to various factors such as attention, expectation, or past experiences. In the case of an illusion, the sensory stimulus is actually present, but the brain's interpretation of it is incorrect.
**Why Each Wrong Option is Incorrect**
**Option A:** Hallucination - This is a false perception in the absence of any external stimulus, which is different from an illusion where a stimulus is actually present.
**Option B:** Pareidolia - This refers to the tendency to see patterns or images in random or ambiguous stimuli, but it's not a false interpretation of an existing stimulus.
**Option C:** Misattribution - This occurs when we attribute a stimulus to the wrong source, but it's not necessarily a false interpretation of the stimulus itself.
**Clinical Pearl / High-Yield Fact**
A classic example of an illusion is the McGurk effect, where the sound of a spoken syllable is altered by the visual lip movement of the speaker. This highlights the complex interaction between sensory modalities in our perception.
**Correct Answer: D. Illusion**