| Polygraph (Lie Detector) | Comments | 
|---|---|
| POLYGRAPH (LIE DETECTOR): Used on Orchids A polygraph expert (Cleve Backster) attached electrodes to leaves of plants (orchids not mentioned) and recorded reactions apparently related to emotional reactions; see Wall Street Journal, Feb.1972; refer to NH72(1)- 23; NH75(1)23 | 0 |