HITLabNZ

Eduardo B. SandovalJuergen BrandstetterChristoph Bartneck

Can a Robot Bribe a Human?The Measurement of the Negative Side of Reciprocity in Human

Robot Interaction.

Language is very important in bribery

Bribery in HRI

!!!!!!!Rock ! ! ! !!!!!!!Paper ! ! ! !!!!!!Scissors!

Experiment!

Then the robot asked for help

x 20

Second task

Second task

Second task

Number of Wins, Reciprocations and Likeability

Measurements

Number of reciprocations

nr. r

ecip

roca

tions

0

3.25

6.5

9.75

13

Briber robot Honest robot

Direct language Indirect language

M=7.2 M=7.0

M=3.41

Number of reciprocation towards the robotM=13

LikeabilityM

eans

4.1

4.175

4.25

4.325

4.4

Bribing Honest

1-5

Let’s keep the Robots Honest!