Five experiments
conducted by Ravi Mehta, Rui (Juliet) Zhu and Amar Cheema and described in the
Journal of Consumer Research show that a moderate level of noise “is likely to induce processing disfluency or processing difficulty, which
activates abstract cognition and consequently enhances creative performance.” Put simpler and in our context : as we are
distracted from completely logical thought because of the noise we experience in
a café, we make way for something else to happen. That something else is more
creative.
The article also tells us
that all sorts of noise are actually disruptive to logical thought – for example white noise (artificially
created and containing all the range of sounds that the human hearing system
can process) and pink noise that sounds like the general hiss of an untuned television.
High levels of noise also disrupt. The latter is not to be confused with loud
noise; loudness is a subjective perception. However, as the café user /
creative practitioner is distracted by a moderate level of noise, including some
white noise, room for abstract thought is created.
The participants’ creativity
was measured by how many unique ideas they generated (experiments 1, 2 and 3) when
exposed to moderate levels of noise. In experiment 4 they were asked to come up
with as many solutions as they could to a particular problem. In the final experiment,
participants’ responses were monitored as they sat in a common room at various times
of the day.
The study shows that a
moderate level of background noise enhances creativity and a high level disrupts
it. Possibly, lower noise level allows more logical thinking to carry on so
does not allow for the more creative, more abstract thought. The article also
mentions a café as being a natural place for this moderate level of noise.
Tis article offers us
some explanation as to why a café is a suitable place for a creative practitioner
to work and gives us permission to indulge. I certainly know many writers who like
to sit in a café – they claim it makes them feel less lonely than working in
isolation at home. The article, however,
seems to point to an additional reason, one of which the practitioners are not
aware: that they actually think more creatively there. I often plan in a café and
I’m often overtaken by those eureka-inducing ideas that seem to come from nowhere
as I sip my cappuccino and tuck into my passion cake. Is the cake and caffeine also
important? Many of my writer friends think so. Is that a whole other piece of
research?
One thing is certain: café noise does not
disrupt the creative train of thought. A
whispered conversation in a library or an open-plan office can as you can understand
the words and you can’t help but listen in. The pneumatic drill outside or the
clatter of plates falling and breaking is just uncomfortable. All of this is a
matter of common sense. It is the change of the way of thinking in the moderate
noise zone that intrigues in this article – and this may just explain why creative
practitioners like cafes so much.