Memory
is
at the core of human identity. It underlies the
ability to identify those we love and to tell
stories. Our memory also allows us to understand
the present, foresee our future, and make good
decisions. However, we know that memory is not
simply a veridical record of physical reality. Many
things happen to us, and of those we remember some
in detail, some vaguely, some incorrectly, and some
not at all.
your
midbrain
your
midbrain waiting for a
reward
Our research program represents an approach guided by and aimed at understanding neurobiology, as well as psychology. This integrated approach may help us understand how our brains ensure that we remember what is important and useful, and help us capitalize on that understanding for human advancement.
Research
in the Adcock laboratory focuses on the neural
systems that allow what we desire to influence what
we remember, for better and for worse. We
use
functional Magnetic Resonance Imaging
(FMRI)
activation (increases in image brightness that
reflect changes in the oxygen levels in the brain)
to measure how changes in brain activity relate to
both
motivation and
memory.
By looking at activation of neural “pleasure”
circuits before and during memory formation, we
have shown that even before you have an experience
(e.g., seeing a picture), there are neural markers
that predict whether or not you are going to
remember it. The ability afforded by
FMRI to
look at an individual person’s brain as it changes,
moment-to-moment, allows us to return to
decades-old but still unresolved questions about
how
motivation influences
learning new
information. We can now integrate these data with
other psychological and biological data we collect
prior to and during memory formation to identify
the key antecedents of lasting
memories.