This is the study. A few more details (I don’t have access to the full study):
One of the reasons they decided to study it was because it was a case where they were fairly confident that the liars actually wanted to lie well and be believed. The subjects were nursing students, and were all told that their ability to keep their calm and not present disgust is necessary for nurses. They watched a pleasant film about flowers, and narrated their reaction to it while being videotaped, and then watched an unpleasant film about surgery on a burn victim, attempting to react the same way as they did to the flower film.
The thing you’re describing sounds different, though- whereas Ekman thought he had found people who hid their disgust well, perhaps he found people that didn’t actually feel disgust in the disgusting situation. The full study may have more details.
This is the study. A few more details (I don’t have access to the full study):
One of the reasons they decided to study it was because it was a case where they were fairly confident that the liars actually wanted to lie well and be believed. The subjects were nursing students, and were all told that their ability to keep their calm and not present disgust is necessary for nurses. They watched a pleasant film about flowers, and narrated their reaction to it while being videotaped, and then watched an unpleasant film about surgery on a burn victim, attempting to react the same way as they did to the flower film.
The thing you’re describing sounds different, though- whereas Ekman thought he had found people who hid their disgust well, perhaps he found people that didn’t actually feel disgust in the disgusting situation. The full study may have more details.