After witnessing the violent rage
shown by babies whenever deprived of an item
they considered their own, Jean Piaget, a founding father
of child psychology, observed something profound
about human nature. Our sense of ownership emerges
incredibly early. Why are we so clingy? There's a well-established phenomenon
in psychology known as the endowment effect where we value items much more highly
just as soon as we own them. In one famous demonstration, students were given a choice
between a coffee mug or a Swiss chocolate bar as a reward for helping out with research. Half chose the mug,
and half chose the chocolate. That is, they seemed to value
the two rewards similarly. Other students were given a mug first and then a surprise chance to swap it
for a chocolate bar, but only 11% wanted to. Yet another group
started out with chocolate, and most preferred to keep it
rather than swap. In other words, the students nearly
always put greater value on whichever reward they started out with. Part of this has to do with how quickly
we form connections between our sense of self
and the things we consider ours. That can even be seen at the neural level. In one experiment, neuroscientists scanned
participants' brains while they allocated various objects
either to a basket labeled "mine," or another labeled, "Alex's." When participants subsequently looked at
their new things, their brains showed more activity in a region that usually
flickers into life whenever we think about ourselves. Another reason we're so fond
of our possessions is that from a young age
we believe they have a unique essence. Psychologists showed us this by using
an illusion to convince three to six-year-olds
they built a copying machine, a device that could create perfect
replicas of any item. When offered a choice between
their favorite toy or an apparently exact copy, the majority of the children
favored the original. In fact, they were often horrified
at the prospect of taking home a copy. This magical thinking about objects
isn't something we grow out of. Rather it persists into adulthood
while becoming ever more elaborate. For example, consider the huge value
placed on items that have been owned by celebrities. It's as if the buyers believed the objects
they'd purchased were somehow imbued with the essence
of their former celebrity owners. For similar reasons, many of us are
reluctant to part with family heirlooms which help us feel connected
to lost loved ones. These beliefs can even alter
our perception of the physical world and change our athletic abilities. Participants in a recent study were told
they were using a golf putter once owned by the champion Ben Curtis. During the experiment, they perceived the hole as being
about a centimeter larger than controlled participants
using a standard putter and they sank slightly more putts. Although feelings of ownership emerge
early in life, culture also plays a part. For example, it was recently discovered
that Hadza people of northern Tanzania who are isolated from modern culture don't exhibit the endowment effect. That's possibly because they live
in an egalitarian society where almost everything is shared. At the other extreme, sometimes our
attachment to our things can go too far. Part of the cause of hoarding disorder
is an exaggerated sense of responsibility and protectiveness
toward one's belongings. That's why people with this condition find
it so difficult to throw anything away. What remains to be seen today is how the nature of our relationship
with our possessions will change with the rise
of digital technologies. Many have forecast the demise
of physical books and music, but for now, at least,
this seems premature. Perhaps there will always be something
uniquely satisfying about holding an object in our hands
and calling it our own.
But the coffee mug is tangible, while the chocolate bar is gone once eaten. Why wouldn't they choose two tangible objects for the research, like a mug and a t-shirt?
"This is my rifle!!" There are many like it but this one is mine!!