What is typically described as a rapid change in topic that might seem disorganized?

The term for a rapid change in topic that appears disorganized is known as flight of ideas. This phenomenon is characterized by a continuous flow of thoughts that seem to transition quickly from one subject to another, which can often make it difficult for a listener to follow the speaker's train of thought. It is most commonly observed in individuals experiencing manic episodes, where the heightened energy and mental activity lead to an accelerated thought process.

Comparatively, loosening of associations refers to a more severe disconnection between ideas, which can lead to completely unrelated thoughts being presented. Thought blocking is the sudden interruption of a thought process, where an individual may abruptly stop talking and seem to lose their train of thought. Circumstantiality involves excessive talking and digressing in conversation, but eventually leading back to the original topic, which differs from the rapidity and seeming disorganization found in flight of ideas. Therefore, the correct term for this rapid and disjointed change in topics is indeed flight of ideas.