When you assemble your robot, it is more appealing

One group of study participants were given a robot that they had to equip with a battery, plug into a computer, and run through a simple software setup process, while the other group watched an experimenter go through the same steps.(Reuters) A study, involving an Indian-origin researcher, has found that if people construct their robot themselves, they tend to get a more positive perception of their creation.
S. Shyam Sundar and Yuan Sun from the Pennsylvania State University set out to find ou