Which term describes sensory events that are unexplained and lead to physical symptoms?

The term "Anomalous Health Incident" is the most appropriate choice because it specifically refers to sensory experiences or events that occur without a clear or understandable cause, often resulting in physical symptoms. This concept is frequently discussed in contexts such as counterintelligence, where unexplained health incidents may have implications for personal safety, operational security, and the overall wellbeing of individuals in sensitive situations.

Anomalous Health Incidents can cover a range of phenomena, including unexplained sensations or experiences that might lead to tangible health effects. This terminology is particularly relevant in discussions about incidents that impact the health of individuals, especially in environments where there may be concerns over foreign adversaries or hostile actions.

In contrast, other choices do not capture the same breadth or specificity. A "Physical Anomaly" might imply a physical irregularity but doesn’t necessarily encompass the unexplained sensory dimension. A "Sensory Illusion" typically refers to misperceptions of stimuli that are not linked to physical symptoms. Lastly, "Psychological Incident" tends to focus more on mental health aspects rather than the interplay of sensory experiences and physical symptoms. Thus, "Anomalous Health Incident" effectively encapsulates the occurrence of unexplained sensory events accompanied by physical manifestations.