My
entire career I’ve been worried about the fact that most psychology research is
conducted on 18-24 year old college students. What if the way 18-24 year old
college students react, think, and behave is not the same as everyone else?
We are drawing conclusions about PEOPLE in general, but only collecting data from a small subset of people whose brains are still changing. It seemed silly that there were rigorous rules about how to conduct scientific studies in psychology, and yet this basic premise about who was being researched and how applicable the research was to different people was ignored. It’s made me secretly skeptical about research. Which is ironic, since I spend a fair amount of time searching out research, thinking about it, interpreting it and writing about it. I guess some research is better than no research?
We are drawing conclusions about PEOPLE in general, but only collecting data from a small subset of people whose brains are still changing. It seemed silly that there were rigorous rules about how to conduct scientific studies in psychology, and yet this basic premise about who was being researched and how applicable the research was to different people was ignored. It’s made me secretly skeptical about research. Which is ironic, since I spend a fair amount of time searching out research, thinking about it, interpreting it and writing about it. I guess some research is better than no research?
Does culture shape
“basic” cognitive processes?– And now I’ve come across
an entirely new reason to be skeptical about the theories we have about how the
brain works — cultural effects. In his book, The
Geography of Thought, Richard Nisbitt discusses research that shows
that how we think — our cognitive processes — are influenced and shaped by
culture. For example, if you show people from “the West” (US, Europe) a
picture, they focus on a main or dominant foreground object, while people from
Asia pay more attention to context and background. Asian people who grow up in
the West show the Western pattern, not the Asian pattern, showing that this is
based on culture, not genetics.
Is most of our research
in psychology based on what “westerners” think? — This has profound implications for some of the theories we have
about cognitive processing. We have research about how people think, how many
items can be stored in memory, etc. What if these theories about how people
think are really theories about how Western people think and are not universal?
Do cultural differences
show up in brain activity? — Sharon Begley recently
wrote about this inNewsweek. She reports on recent neuroscience
research that confirms the cultural effects. “… when shown complex, busy
scenes, Asian-Americans and non-Asian–Americans recruited different brain
regions. The Asians showed more activity in areas that process figure-ground
relations—holistic context—while the Americans showed more activity in regions
that recognize objects. To take one recent example, a region behind the
forehead called the medial prefrontal cortex supposedly represents the self: it
is active when we (“we” being the Americans in the study) think of our own
identity and traits. But with Chinese volunteers, the results were strikingly
different. The “me” circuit hummed not only when they thought whether a
particular adjective described themselves, but also when they considered
whether it described their mother.”
Will it ever end? – This is the curse of research. Just when we think we know
something, we find out there are more questions than answers! One trend
that should help is that there is more and more research coming out of Asia. If
you peruse the psychology scientific journals you will see that more than half
of the research that is being published today comes from Asia. Another big
chunk comes from Europe, so the psychology research now is not so US centric.
This will help, or will it? Will we now have to worry that the results from
Asia don’t apply to the West? Should all psychology research be done using
different cultures?
What do you think?
For more reading:
Ambady, N., Freeman, J. B., Rule, N. O. (in press). Culture and
the neural substrates of behavior, perception, and cognition. In J. Decety
& J. Cacioppo (Eds.), The
Handbook of Social Neuroscience.Oxford: Oxford University Press.
Post a Comment