These terms likely refer to adult content — specifically a scene or storyline from the adult film series Doctor Adventures featuring the performer (known for her distinctive physiological response), with a "blind experiment" plot device, where she plays a patient or subject, and "top" possibly referring to a dominant role or position.
Finch called it an adventure.
The "Doctor Adventures" series was built on a simple but effective premise: a sterile, clinical environment where "doctors" conducted various "tests" on their subjects. In the "Blind Experiment" featuring Cytherea, the narrative centered on sensory deprivation. doctor adventures cytherea blind experiment top