Trust in a Bottle

flosofl writes "The BBC has a report on oxytocin and its ability to skew our trust levels. 'The participants in the study played a game, in which they were split into "investors" and "trustees." The investors were then given credits and told they could chose whether to hand over zero, four, eight or 12 credits to their assigned trustee.' Some of the investors were given oxytocin via nasal spray. The results were surprising: 'Of 29 investors who were given oxytocin, 13 (45%) displayed "maximal trust" by choosing to invest highly, compared to six (21%) of the 29 investors who were given the dummy spray.' When the trustee was a computer, there was no difference between the two test groups."

Comments

Too Small of a Test

[rhino_badlands]

For this to really be worked out you need to do multiple test on a much larger scale. The people in the one group could have just been suckers.

Re:If memory serves me correctly...

[ultramk]

It's released a lot of times... usually during intimacy.

it's released:
- during sex
- when a mother holds her baby
- when nursing
- when two people are holding each other

I had a professor who called it "the Cuddle Drug". It's been thought to play a major part of the "bonding" process, parent/child as well as romantic relationships.

And no, it's not Oxycontin, which is a completely different thing.

m-

Horny geeks, take note.

[Jerk City Troll]

This hormone is produced when female nipples are stimulated. Maybe you guys can get her to trust you.

Re:Number of participants

[Skippy_kangaroo]

Not necessarily.

The standard deviation of a binomial distribution is sqrt(n.p.(1-p)) where n is the number of subjects and p is the probability of maximal trust.

Thus, out of a sample of 29 people and with p=0.21 the standard deviation is 2.2.

Thus, 13 is 3.2 standard deviations away from 6. There is only a 0.07% chance that these are from the same distribution.

Thus, they can conclusively conclude that this spray had a statistically significant effect on trust.

You can make it more complicated if you wish but the basic fact remains that you can get statistically significant results from small samples. In this case there is only a 0.07% chance that they are wrong.

Re:Number of participants

[yali]

The experimenters reported p=.029 (one-tailed) with their results. If you accept the one-tailed test, it is "statistically significant" by conventional standards.

And N=58 (29 people per group) is pretty typical for single studies in the behavioral sciences. Ultimately, the grandparent is right -- this needs to be replicated. But that's true of single studies in any scientific field, no matter the sample size or p-value. This is an exciting enough discovery that you can bet lots of scientists are going to try to replicate it.

Re:It's a BS experiment.

[XorNand]

Wow... I guess you've never been in the position of having to sell a product or service. It's a very core principle of professional salesmanship: if the prospect doesn't trust you, he will never open his wallet. 90% of the sales process is working to build rapport and trust with that person. People don't decide to buy or not to buy based on reading the stacks of whitepapers and literature thrown at them. They don't call your previous customers to ask how your track record looks. It all boils down to how they personally feel about the guy trying to influence them, aka "trust".