**Core Concept**
Conversion disorder, also known as functional neurological symptom disorder, is a condition where a person experiences neurological symptoms, such as weakness, paralysis, or tremors, that cannot be explained by any underlying medical condition. These symptoms are often the result of psychological distress or trauma.

**Why the Correct Answer is Right**
Conversion disorder typically presents with symptoms that are not consistent with any known neurological disease, such as hemiparesis without any motor weakness on the contralateral side, or loss of sensation without any corresponding sensory deficit. These symptoms are often linked to a specific traumatic event or stressor, and are often accompanied by a lack of awareness of the true nature of the symptoms. In conversion disorder, the brain's motor control systems are not impaired, but rather, the individual's perception of their own motor abilities is altered.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because conversion disorder is characterized by a lack of objective neurologic findings, making it difficult to distinguish from other conditions such as malingering or factitious disorder. However, the correct answer is not provided.

**Option B:** This option is incorrect because conversion disorder often presents with symptoms that are not consistent with any known neurological disease, such as hemiparesis without any motor weakness on the contralateral side.

**Option C:** This option is incorrect because conversion disorder is often linked to a specific traumatic event or stressor, and is often accompanied by a lack of awareness of the true nature of the symptoms.

**Option D:** This option is incorrect because conversion disorder is characterized by a lack of objective neurologic findings, making it difficult to distinguish from other conditions such as malingering or factitious disorder.

**Clinical Pearl / High-Yield Fact**
Conversion disorder should be considered in any patient presenting with unexplained neurological symptoms, particularly in the context of a recent traumatic event or stressor. It is essential to conduct a thorough medical and psychological evaluation to distinguish conversion disorder from other conditions.

**Correct Answer:** D.