PLoS Biology,
Journal Year:
2015,
Volume and Issue:
13(6), P. e1002180 - e1002180
Published: June 22, 2015
Neuroimaging
has
identified
many
correlates
of
emotion
but
not
yet
yielded
brain
representations
predictive
the
intensity
emotional
experiences
in
individuals.
We
used
machine
learning
to
identify
a
sensitive
and
specific
signature
responses
aversive
images.
This
predicted
negative
individual
participants
cross
validation
(n
=121)
test
=
61)
samples
(high-low
93.5%
accuracy).
It
was
unresponsive
physical
pain
(emotion-pain
92%
discriminative
accuracy),
demonstrating
that
it
is
representation
generalized
arousal
or
salience.
The
comprised
mesoscale
patterns
spanning
multiple
cortical
subcortical
systems,
with
no
single
system
necessary
sufficient
for
predicting
experience.
Furthermore,
reducible
activity
traditional
"emotion-related"
regions
(e.g.,
amygdala,
insula)
resting-state
networks
"salience,"
"default
mode").
Overall,
this
work
identifies
differentiable
neural
components
pain,
providing
basis
new,
brain-based
taxonomies
affective
processes.
Psychological Science,
Journal Year:
2013,
Volume and Issue:
24(8), P. 1554 - 1562
Published: June 26, 2013
In
the
present
study,
we
examined
relationship
between
developmental
modulation
of
socioaffective
brain
systems
and
adolescents’
preoccupation
with
social
evaluation.
Child,
adolescent,
adult
participants
viewed
cues
indicating
that
a
camera
was
alternately
off,
warming
up,
or
projecting
their
image
to
peer
during
acquisition
behavioral-,
autonomic-,
neural-response
(functional
MRI)
data.
Believing
actively
watching
them
sufficient
induce
self-conscious
emotion
rose
in
magnitude
from
childhood
adolescence
partially
subsided
into
adulthood.
Autonomic
arousal
uniquely
heightened
adolescents.
These
behavioral
patterns
were
paralleled
by
emergent
engagement
medial
prefrontal
cortex
(MPFC)
striatum-MPFC
connectivity
adolescence,
which
are
thought
promote
motivated
behavior
adolescence.
findings
demonstrate
self-consciousness
is
related
age-dependent
sensitivity
critical
processes.
Further,
unique
interactions
MPFC
striatum
may
provide
mechanism
social-evaluation
contexts
influence
adolescent
behavior.
PLoS Biology,
Journal Year:
2015,
Volume and Issue:
13(6), P. e1002180 - e1002180
Published: June 22, 2015
Neuroimaging
has
identified
many
correlates
of
emotion
but
not
yet
yielded
brain
representations
predictive
the
intensity
emotional
experiences
in
individuals.
We
used
machine
learning
to
identify
a
sensitive
and
specific
signature
responses
aversive
images.
This
predicted
negative
individual
participants
cross
validation
(n
=121)
test
=
61)
samples
(high-low
93.5%
accuracy).
It
was
unresponsive
physical
pain
(emotion-pain
92%
discriminative
accuracy),
demonstrating
that
it
is
representation
generalized
arousal
or
salience.
The
comprised
mesoscale
patterns
spanning
multiple
cortical
subcortical
systems,
with
no
single
system
necessary
sufficient
for
predicting
experience.
Furthermore,
reducible
activity
traditional
"emotion-related"
regions
(e.g.,
amygdala,
insula)
resting-state
networks
"salience,"
"default
mode").
Overall,
this
work
identifies
differentiable
neural
components
pain,
providing
basis
new,
brain-based
taxonomies
affective
processes.