How much would you need to be paid to participate in a research study in which all of your thoughts for one week would be recorded and subsequently analyzed for research purposes?

Imagine a device was invented that was able to record every thought you had, exactly, as text. Researchers were interested in studying the thought processes of individuals at various points in their days. Results would be kept confidential. This would not be “inconvenient” for you; you would simply wear a small sticker on the back of your neck.

Indicate the amounts you would need to participate in this study for one week under each of the following conditions:
1) The researchers were complete strangers to you
2) The researchers were loose acquaintances or coworkers
3) The researchers were friends
4) The researchers were family
5) The researcher was your significant other

Which would you need to be paid the most to reveal your thoughts to, and why? If you were wearing the sticker, would you attempt to modify your thoughts at all during the week? If you would require a very high compensation for participation in this experiment, why? What is so private about your thoughts that makes you so reluctant to allow someone to read them?