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Rapunzel Study

Participation Involves:

  • The study is completely remote

  • You will need to first indicate your willingness to participate at the end of this information screen and create a free Amazon mTurk account.

  • You will be asked to complete a series of survey and computer tasks through mTurk. 

    • Will not ask about name, address, or other data that would easily identify you

  • You will be asked to provide a small 6 cm hair sample (approx. half a pencil width) and send it to us using your mTurk ID. 

    • Do not include name or address on sample or envelope.

    • More instructions in guide for Hair Sample Collection below

  • The whole study will take approximately 1.5 - 2.5 hours


You May Qualify if:

  • You are 18 years of age or older

  • You live in Minnesota

  • Your hair is 6cm (approx. the length of a golf tee) or longer

  • Both men and women are welcome to participate!



  • $30 for completing the entire study

We cannot accept or pay for hair samples without a completed mTurk study which includes a consent, healthy survey, and a behavioral task. 

When sending your hair samples after you've completed the HIT, please leave the return address blank for anonymity. Please

1) Note the direction of the root of your hair

2) you mTurk worker ID

3) the date that you took the sample. 

Address your envelop to: 

"You will need an mTurk worker account first. When you're ready, you can click on this button it will tale you to the mTurk site and copy "Rapunzel Study" into the search bar."

©2020 by Herman Darrow Human Neuroscience Lab