Which term describes a mental condition involving unexplained paralysis or blindness?

The term that accurately describes a mental condition involving unexplained paralysis or blindness is conversion disorder. This condition is characterized by the presence of neurological symptoms such as paralysis or loss of vision that cannot be explained by medical or neurological conditions. Instead, the symptoms are thought to arise as a psychological response to stress or trauma, indicating a conversion of emotional distress into physical symptoms.

Individuals with conversion disorder may experience significant impairment in daily functioning due to these unexplained symptoms. The phenomenon highlights the complex interaction between psychological and physical health, emphasizing that psychological factors can manifest as real and distressing physical symptoms.

While other terms such as psychosomatic disorder and functional neurological disorder are related and refer to conditions involving psychological and physical interactions, they do not specifically convey the same characteristics as conversion disorder. Psychosomatic disorders usually involve physical symptoms that are influenced by psychological factors but are not necessarily limited to unexplained paralysis or blindness. Functional neurological disorder also pertains to neurological symptoms that have a psychological basis, but like psychosomatic disorder, it is a broader term that includes a variety of symptoms and does not always entail a direct conversion of psychological distress into physical manifestations in the same way as conversion disorder does.