Brain,
Год журнала:
2023,
Номер
147(1), С. 297 - 310
Опубликована: Сен. 16, 2023
Abstract
Despite
human’s
praxis
abilities
are
unique
among
primates,
comparative
observations
suggest
that
these
cognitive
motor
skills
could
have
emerged
from
exploitation
and
adaptation
of
phylogenetically
older
building
blocks,
namely
the
parieto-frontal
networks
subserving
prehension
manipulation.
Within
this
framework,
investigating
to
which
extent
prehension-manipulation
overlap
diverge
within
circuits
help
in
understanding
how
human
cognition
shapes
hand
actions.
This
issue
has
never
been
investigated
by
combining
lesion
mapping
direct
electrophysiological
approaches
neurosurgical
patients.
To
purpose,
79
right-handed
left-brain
tumour
patient
candidates
for
awake
neurosurgery
were
selected
based
on
inclusion
criteria.
First,
a
was
performed
early
postoperative
phase
localize
regions
associated
with
an
impairment
(imitation
meaningless
meaningful
intransitive
gestures)
visuo-guided
(reaching-to-grasping)
abilities.
Then,
results
anatomically
matched
intraoperatively
identified
cortical
white
matter
regions,
whose
electrical
stimulation
impaired
Hand
Manipulation
Task.
The
analysis
showed
impairments
occurring
specific
parietal
sectors.
Dorso-mesial
resections,
including
superior
lobe
precuneus,
affected
performance,
while
resections
involving
rostral
intraparietal
inferior
areas
(covariate
clusters,
5000
permutations,
cluster-level
family-wise
error
correction
P
<
0.05).
dorsal
bank
sulcus
both
(overlap
non-covariate
clusters).
results,
resection
mainly
imitation
gestures,
gesture
imitation.
In
parallel,
intraoperative
adjacent
their
surrounding
during
manipulation
task
evoked
different
impairments,
i.e.
arrest
clumsy
patterns,
respectively.
When
integrating
it
emerges
gestures
first
depends
integrity
dorso-ventral
stream.
Among
areas,
area
play
distinct
roles
sensorimotor
process
controlling
Due
its
visuo-motor
‘attitude’,
sulcus,
putative
homologue
monkey
anterior
intraparietal,
might
enable
conversion
observed
(direct
pathway).
Moreover,
functional
interaction
adjacent,
phylogenetic
more
recent,
contribute
integrate
semantic-conceptual
knowledge
(indirect
pathway)
workflow,
contributing
upgrade
NeuroImage,
Год журнала:
2025,
Номер
308, С. 121082 - 121082
Опубликована: Фев. 9, 2025
Motor
resonance
-
the
facilitation
of
corticospinal
excitability
during
action
observation
is
considered
a
proxy
Action
Observation
Network
(AON)
recruitment
in
humans,
with
profound
implications
for
social
cognition
and
understanding.
Despite
extensive
research,
neural
underpinnings
supporting
motor
emergence
rewriting
remain
unexplored.
In
this
study,
we
investigated
role
sensorimotor
associative
learning
mechanisms
underlying
phenomenon.
To
aim,
applied
cross-systems
paired
stimulation
(PAS)
to
induce
novel
visuomotor
associations
human
brain.
This
protocol,
which
repeatedly
pairs
transcranial
magnetic
(TMS)
pulses
over
primary
cortex
(M1)
visual
stimuli
actions,
drives
an
atypical,
PAS-conditioned
response.
Using
TMS
electroencephalography
(EEG)
co-registration
observation,
tracked
M1
functional
connectivity
profile
process
map
inter-areal
profiles
associated
typical
PAS-induced
phenomena.
Besides
confirming,
at
level,
newly
acquired
responses
cost
ones
after
PAS
administration,
our
results
reveal
dissociable
aspects
interregional
communication.
On
one
side,
effects
through
lifespan
are
prominent
alpha-band
reduced
beta-band
connectivity,
might
facilitate
output
while
integrating
information.
Conversely,
atypical
linked
cortical
modulations,
only
partially
overlapping
communication
patterns
related
mirroring
responses.
evidence
suggests
that
beta-phase
synchronization
may
be
critical
mechanism
formation
by
coordinating
activity
regions
also
involves
top-down
control
frontal
areas.
These
findings
provide
new
insights
into
dynamics
(typical
acquired)
resonance,
highlighting
large-scale
within
AON.
Neuroscience & Biobehavioral Reviews,
Год журнала:
2024,
Номер
160, С. 105650 - 105650
Опубликована: Апрель 3, 2024
ROLLS,
E.
T.
Two
What,
Where,
Visual
Cortical
Streams
in
Humans.
NEUROSCI
BIOBEHAV
REV
2024.
Recent
cortical
connectivity
investigations
lead
to
new
concepts
about
'What'
and
'Where'
visual
streams
humans,
how
they
connect
other
systems.
A
ventrolateral
stream
leads
the
inferior
temporal
cortex
for
object
face
identity,
provides
information
hippocampal
episodic
memory
system,
anterior
lobe
semantic
orbitofrontal
emotion
system.
superior
sulcus
(STS)
utilising
from
parietal
responds
moving
objects
faces,
expression,
connects
social
behaviour.
ventromedial
builds
feature
combinations
scenes,
inputs
via
parahippocampal
scene
area
system
that
are
also
useful
landmark-based
navigation.
The
dorsal
pathway
actions
space,
but
coordinate
transforms
provide
self-motion
update
of
locations
scenes
dark
or
when
view
is
obscured.
The
human
ability
to
effortlessly
understand
the
actions
of
other
people
has
been
focus
research
in
cognitive
neuroscience
for
decades.
What
have
we
learned
about
this
ability,
and
what
open
questions
remain?
In
Element
authors
address
these
by
considering
kinds
information
an
observer
may
gain
when
viewing
action.
A
'what,
how,
why'
framing
organises
evidence
theories
representations
that
support
classifying
action;
how
way
action
is
performed
supports
observational
learning
inferences
people;
actor's
intentions
are
inferred
from
her
actions.
Further
shows
brain
systems
understanding,
inspired
'mirror
neurons'
related
concepts.
Understanding
vision
a
multi-faceted
process
serves
many
behavioural
goals,
served
diverse
mechanisms
systems.
Current Biology,
Год журнала:
2021,
Номер
31(13), С. 2819 - 2830.e4
Опубликована: Май 12, 2021
The
action
observation
network
(AON)
includes
a
system
of
brain
areas
largely
shared
with
execution
in
both
human
and
nonhuman
primates.
Yet
temporal
tuning
specificities
distinct
physiologically
identified
neuronal
classes
the
encoding
self
others'
remain
unknown.
We
recorded
activity
355
single
units
from
three
crucial
nodes
AON,
anterior
intraparietal
area
(AIP),
premotor
F5
F6,
while
monkeys
performed
Go/No-Go
grasping
task
observed
an
experimenter
performing
it.
At
level,
during
execution,
F6
displays
prevalence
suppressed
neurons
signals
whether
has
to
be
performed,
whereas
AIP
share
facilitated
remarkable
target
selectivity;
observation,
stands
out
for
its
unique
stronger
earlier
modulation
than
F6.
By
applying
unsupervised
clustering
spike
waveforms,
we
found
cell
unevenly
distributed
across
areas,
different
firing
properties
carrying
specific
visuomotor
signals.
Broadly
spiking
exhibited
balanced
amount
narrower
showed
more
mutually
responses
one's
own
action,
particularly
F5.
Our
findings
elucidate
time
course
AON
level
anatomically
local
classes.
Brain Structure and Function,
Год журнала:
2021,
Номер
226(9), С. 2967 - 2988
Опубликована: Сен. 10, 2021
Abstract
The
posterior
parietal
cortex
(PPC)
has
long
been
understood
as
a
high-level
integrative
station
for
computing
motor
commands
the
body
based
on
sensory
(i.e.,
mostly
tactile
and
visual)
input
from
outside
world.
In
last
decade,
accumulating
evidence
shown
that
areas
not
only
extract
pragmatic
features
of
manipulable
objects,
but
also
subserve
sensorimotor
processing
others’
actions.
A
paradigmatic
case
is
anterior
intraparietal
area
(AIP),
which
encodes
identity
observed
manipulative
actions
afford
potential
observer
could
perform
in
response
to
them.
On
these
bases,
we
propose
an
AIP
action-based
template
general
planning
functions
PPC
review
existing
supporting
extension
this
model
other
regions
wider
set
actions:
defensive
locomotor
our
model,
hallmark
functioning
information
about
physical
social
world
encode
bodily
appropriate
current
context.
We
further
extend
performed
with
man-made
objects
(e.g.,
tools)
artifacts,
because
they
become
integral
parts
subject’s
schema
repertoire.
Finally,
conclude
supports
generally
conserved
neural
circuitry
transforms
integrated
signals
into
variety
primates
are
capable
preparing
performing
interact
their