1. A method comprising: presenting, with a processor, a subsurface image of a hydrocarbon entity, wherein the hydrocarbon entity includes hydrocarbons that consist of hydrogen and carbon; sensing, with a sensor, a physiological response of a viewer of the subsurface image of the hydrocarbon entity; associating, with the processor, the physiological response with a localized region, which includes the hydrocarbons, of the subsurface image of the hydrocarbon entity, the localized region being less than an entirety of the subsurface image of the hydrocarbon entity, and the localized region being responsible for the physiological response; outputting, with the processor, the subsurface image of the hydrocarbon entity and a representation of the associated physiological response to the localized region, which includes the hydrocarbons; and using the processor and the representation of the associated physiological response to identify a location for a new well or to identify a previously uninterpreted geological feature in the localized region of the subsurface image.