Human Brain Mapping,
Journal Year:
2023,
Volume and Issue:
45(1)
Published: Dec. 7, 2023
Problem-solving
often
requires
creativity
and
is
critical
in
everyday
life.
However,
the
neurocognitive
mechanisms
underlying
creative
problem-solving
remain
poorly
understood.
Two
have
been
highlighted:
formation
of
new
connections
among
problem
elements
insight
solving,
characterized
by
sudden
realization
a
solution.
In
this
study,
we
investigated
EEG
activity
during
modified
version
remote
associates
test,
classical
task
that
finding
word
connecting
three
unrelated
words.
This
allowed
us
to
explore
brain
correlates
associated
with
semantic
remoteness
(by
varying
solution
across
trials)
solving
(identified
as
Eurêka
moment
reported
participants).
Semantic
was
power
increase
alpha
band
(8-12
Hz)
left
parieto-temporal
cluster,
beta
(13-30
right
fronto-temporal
cluster
early
phase
task,
theta
(3-7
bilateral
frontal
just
prior
participants'
responses.
Insight
preceding
responses
gamma
(31-60
bands
temporal
cluster.
Source
reconstructions
revealed
regions
these
clusters.
Overall,
our
findings
shed
light
on
some
involved
problem-solving.
Communications Biology,
Journal Year:
2022,
Volume and Issue:
5(1)
Published: June 16, 2022
Abstract
Creative
ideas
likely
result
from
searching
and
combining
semantic
memory
knowledge,
yet
the
mechanisms
acting
on
to
yield
creative
remain
unclear.
Here,
we
identified
neurocognitive
correlates
of
search
components
related
abilities.
We
designed
an
associative
fluency
task
based
polysemous
words
distinguished
two
clustering
switching
between
different
meanings
words.
Clustering
correlated
with
divergent
thinking,
while
ability
combine
remote
associates.
Furthermore,
structure
executive
abilities,
was
predicted
by
connectivity
default,
control,
salience
neural
networks.
In
contrast,
relied
interactions
salience,
attentional
Our
results
suggest
that
captures
control
processes
guiding
whereas
may
capture
controlled
for
persistent
search,
alternations
exploratory
focused
attention
support
creativity.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Dec. 7, 2023
Cognitive
neuroscience
has
gained
insight
into
covert
states
using
experience
sampling.
Traditionally,
this
approach
focused
on
off-task
states.
However,
task-relevant
are
also
maintained
via
processes.
Our
study
examined
whether
sampling
can
provide
insights
goal-relevant
that
support
task
performance.
To
address
question,
we
developed
a
neural
state
space,
dimensions
of
brain
function
variation,
allows
correlates
overt
and
to
be
in
common
analytic
space.
We
use
describe
activity
during
performance,
its
relation
identified
sampling,
links
between
individual
variation
established
deliberate
focus
was
linked
faster
target
detection,
underlying
experience-and
detection-were
associated
with
patterns
emphasizing
the
fronto-parietal
network.
In
contrast,
experiences-and
vigilance
periods-were
default
mode
shows
not
only
unrelated
at
hand,
but
used
highlight
role
regions
play
maintenance
Tulving
(1972)
characterized
semantic
memory
as
a
vast
repository
of
meaning
that
underlies
language
and
many
other
cognitive
processes.
This
perspective
on
lexical
conceptual
knowledge
galvanized
new
era
research
undertaken
by
numerous
fields,
each
with
their
own
idiosyncratic
methods
terminology.
For
example,
‘concept’
has
different
meanings
in
philosophy,
linguistics,
psychology.
As
such,
fundamental
constructs
used
to
delineate
theories
remain
underspecified
and/or
opaque.
Weak
construct
specificity
is
among
the
leading
causes
replication
crisis
now
facing
psychology
related
fields.
Term
ambiguity
hinders
cross-disciplinary
communication,
falsifiability,
incremental
theory-building.
Numerous
subdisciplines
(e.g.,
vision,
affective
neuroscience)
have
recently
addressed
these
limitations
via
development
consensus-based
guidelines
definitions.
The
project
follow
represents
our
effort
produce
multidisciplinary
glossary
consisting
succinct
definitions,
background,
principled
dissenting
views,
ratings
agreement,
subjective
confidence
for
17
target
abstractness,
abstraction,
concreteness,
concept,
embodied
cognition,
event
semantics,
lexical-semantic,
modality,
representation,
control,
feature,
simulation,
distance,
dimension).
We
discuss
potential
benefits
pitfalls
implicit
bias,
prescriptiveness)
efforts
specify
common
nomenclature
researchers
might
index
specifying
theoretical
perspectives
They
said
X,
but
I
mean
Y).
Creativity Research Journal,
Journal Year:
2023,
Volume and Issue:
35(3), P. 522 - 546
Published: April 6, 2023
Associative
thinking
plays
a
major
role
in
creativity,
as
it
involves
the
ability
to
link
distant
concepts.
Yet,
neural
mechanisms
allowing
combine
associates
creative
tasks
remain
poorly
understood.
We
investigated
whole-brain
functional
connectivity
patterns
related
combining
remote
associations
for
thinking.
Using
connectome
predictive
modeling
approach,
we
examined
connecting
close
and
Combination
Association
Task
(CAT).
Brain
networks
predicting
CAT
performance
showed
contributions
from
brain
mostly
Default
Mode
Network,
likely
associative
processes
required
all
trials
of
task.
Besides,
pattern
remoteness
linked
also
largely
involved
Executive
Control
Dorsal
Attention
Network
Somatomotor
networks,
suggesting
that
more
controlled
played
an
important
with
higher
remoteness.
Critically,
demands
task
share
similarities
previously
found
predict
divergent
Thus,
our
work
potentially
offers
insights
into
play
both
convergent
Journal of Neuroscience,
Journal Year:
2024,
Volume and Issue:
44(20), P. e1907232024 - e1907232024
Published: April 8, 2024
The
default
mode
network
(DMN)
typically
deactivates
to
external
tasks,
yet
supports
semantic
cognition.
It
comprises
medial
temporal
(MT),
core,
and
frontotemporal
(FT)
subsystems,
but
its
functional
organization
is
unclear:
the
requirement
for
perceptual
coupling
versus
decoupling,
input
modality
(visual/verbal),
type
of
information
(social/spatial),
control
demands
all
potentially
affect
recruitment.
We
examined
effect
these
factors
on
activation
deactivation
DMN
subsystems
during
cognition,
across
four
task-based
human
magnetic
resonance
imaging
(fMRI)
datasets,
localized
responses
in
whole-brain
state
space
defined
by
gradients
intrinsic
connectivity.
FT
showed
consistent
with
a
central
role
domains,
modalities,
although
it
was
most
responsive
abstract,
verbal
tasks;
this
subsystem
uniquely
more
“tuned”
states
characterized
increases
both
when
retrieval
were
higher.
MT
also
activated
perceptually
coupled
(scenes)
decoupled
(autobiographical
memory)
tasks
stronger
picture
associations,
scene
construction.
Core
consistently
deactivation,
especially
externally
oriented
tasks.
These
diverse
contributions
cognition
related
their
location
connectivity
gradients:
closer
sensory-motor
cortex
than
particularly
MT,
while
core
distant
from
visual
cognitive
control.
results
reveal
distinctive
complementary
responses:
support
different
memory-based
representations
that
are
accessed
internally,
associated
demanding,
One
of
the
most
common
distinctions
in
long-term
memory
is
that
between
semantic
(i.e.,
general
world
knowledge)
and
episodic
recollection
contextually
specific
events
from
one's
past).
However,
emerging
cognitive
neuroscience
data
suggest
a
surprisingly
large
overlap
neural
correlates
memory.
Moreover,
personal
memories
knowledge
about
self
life)
have
been
studied
little
do
not
easily
fit
into
standard
semantic-episodic
dichotomy.
Here,
we
used
fMRI
to
record
brain
activity
while
48
participants
verified
statements
concerning
facts,
autobiographical
repeated
events,
unique
events.
In
multivariate
analysis,
all
four
types
involved
within
network
bilaterally
(e.g.,
frontal
pole,
paracingulate
gyrus,
medial
cortex,
middle/superior
temporal
precuneus,
posterior
cingulate,
angular
gyrus)
some
areas
lobe.
Yet
differentially
engaged
this
network,
increasing
facts
Our
are
compatible
with
component
process
model,
which
declarative
rely
on
different
weightings
same
elementary
processes,
such
as
perceptual
imagery,
spatial
features,
self-reflection.