Rhythms in cognition: The evidence revisited
European Journal of Neuroscience,
Journal Year:
2022,
Volume and Issue:
55(11-12), P. 2991 - 3009
Published: June 1, 2022
Brain
activity
abounds
with
rhythmic
patterns
(Capilla
et
al.,
2021;
Groppe
2013;
Keitel
&
Gross,
2016)
that
reflect
ongoing
fluctuations
of
neuronal
excitability
(Adrian
Matthews,
1934;
Bishop,
1932).
These
rhythms
can
be
described
as
oscillations
cycle
through
phases
at
specific
frequencies
and
a
certain
strength
or
amplitude
(Figure
1).
Attempts
to
account
for
the
functional
relevance
have
gone
from
associating
cognitive
function
X
Y
more
comprehensive
understanding
role
brain
in
human
everyday
experience
behaviour
(Buzsáki
Draguhn,
2004;
Fries,
2015;
Lakatos
2019;
Wang,
2010).
accounts
support
simple,
yet
fundamental
idea:
Cognitive
functions
themselves
may
intrinsically
rhythmic.
"The
scanning
apparatus
should
intrinsic
period
operation
which
identifiable
performance
brain.
[...]
In
fact,
it
has
order
frequency
appropriate
alpha
rhythm
brain,
shown
electroencephalograms.
We
suspect
this
is
associated
form
perception,
partakes
nature
sweep
rhythm,
like
process
television
apparatus."
Theories
derived
these
early
ideas
been
reiterated
over
past
90
years.
During
time,
research
focussed
on
variations
framework
claiming
processes
depend
offered
wealth
empirical
evidence
(Schroeder
2010;
VanRullen,
2016;
VanRullen
Koch,
2003).
Rhythmic
sampling,
implemented
rhythms,
proposed
underlies
not
only
perception
but
also
attention
(VanRullen
2007),
memory
(Staresina
2015),
language
(Giraud
Poeppel,
2012).
Linking
cognition
sampling
particularly
attractive
because
allows
using
global
mechanistic
principles
bridge
two
different
levels
explanation:
normal
function,
involves
activity,
experiences.
addition,
leaves
open
possibility
actively
intervening
external
stimulation
either
advance
theory,
example,
close
causal
(see
section
'Can
we
manipulate
take
control
cognition?'),
develop
applications
clinical
interventions,
such
rehabilitation,
brain-computer
interfaces.
The
field,
however,
immune
controversy.
available
does
unequivocally
assumed
visual
processing
(Benwell
2017;
Chaumon
Busch,
2014;
Fekete
2018;
O'Hare,
1954;
Ruzzoli
van
Diepen
Van
Walsh,
1952),
various
theoretical
inconsistencies
highlighted
(Fekete
White,
2018).
For
instance,
exact
implicated
often
differ
between
studies
task
and/or
stimulus
characteristics
(Chen
2020;
Ho
Merholz
2022;
Ronconi
see
table
2019),
difficult
reconcile
any
simple
model
fixed,
discrete
temporal
'frames'
(White,
Additionally,
effect
sizes
showing
periodicity
behavioural
neural
measures
tend
small,
hence
line
clear,
all-or-nothing
frame
boundaries
(Milton
Pleydell-Pearce,
2018)
utility
real-life
(Vigué-Guix
2020).
Furthermore,
literature
suffers
lack
direct
replications,
pre-registered
studies,
data,
code
sharing
(Garrett-Ruffin
Niso
Pavlov
2021),
well
low
statistical
power
(Button
2013).
Finally,
publication
bias
favour
statistically
significant
results
distorted
undermined
reliability
published
(Szucs
Ioannidis,
2017).
Despite
extensive
research,
existence
remain
intensely
debated,
idea
continues
attract
vast
interest.
Special
Issue,
called
methodologically
principled
irrespective
their
outcome,
would
contribute
clarifying
if,
under
conditions,
observed.
addition
26
original
articles
(including
conceptual
replications),
received
reviews,
methodological
advances,
position
papers.
Following
our
aim
re-visit
cognition,
evaluated
primary
outcomes
23
tested
hypothesis
directly.
A
split
picture
emerged
11
reporting
supportive
12
others
null
inconclusive
findings
Figure
2).
Within
context,
here
review
36
publications
Issue
an
emphasis
how
each
contribution
informs
questions
controversies
wider
cognition.
doing
so,
cluster
contributions
around
prevalent
topics
–
Does
operate
rhythmically?
And
if
processes?
majority
come
influence
outcomes.
Below,
summarise
previous
lines
discuss
relevant
Issue.
Numerous
demonstrated
by
probing
time
intervals
relative
reference
event.
Provided
are
distributed
across
wide-enough
range
sampled
densely
within
range,
resulting
course
submitted
spectral
analysis
rhythmicity.
This
approach
new
(e.g.,
Latour,
1967;
Purushothaman
2000)
become
increasingly
popular
last
decade
Dugué
Fiebelkorn
Landau
2012;
Senoussi
2019).
refer
reader
Kienitz
al.
(2021)
overview
experimental
paradigms
employed
study
during
attentive
vision
both
non-human
primates.
behaviour,
debate
surrounds
potential
dissociations
frequencies.
Michel
addressed
topic
information
up
down
theta
(4–7
Hz)
(8–12
rhythms.
participants
performed
orientation
judgement
after
non-informative
cue
(50%
validity)
indicated
target
location.
observed
precision
oscillated
invalidly
cued
targets,
whilst
guess
rate
validly
targets.
suggest
distinct
roles
potentially
subserving
attentional
fluctuations.
However,
authors
suggested
environmental
likely
drives
spatial
resolution,
rather
than
strict
succession
perceptual
snapshots
blind
gaps
'up'
'down'
respectively.
possible
frequencies,
degree
fixed
depends
demands
participant
state
remains
unclear.
regard,
Balestrieri
(2021,
issue)
showed
interplay
working
memory.
Rhythms
detection
were
maintenance
simultaneous
task.
Interestingly,
was
modulated
load,
oscillating
~7.5
Hz
versus
5
high
respectively,
suggesting
might
depending
allocation
limited
resources
another
Morrow
Samaha
whether
occurs
alpha-band
(Chakravarthi
Sokoliuk
2016),
capitalising
motion-related
illusions:
flash-lag
Fröhlich
effect.
Indeed,
according
recently
(K.
A.
Schneider,
2018),
supported
series
'perceptual
moments',
duration
individual
differences
illusions.
hypothesised
effects
driven
endogenous
peak
participants,
then
magnitude
illusion
correlated
individuals.
successfully
induced
illusions
all
found
no
correlation
Bayesian
favoured
single
underlying
oscillatory
mechanism
could
Plöchl
examined
auditory
modality.
Their
included
visual,
auditory,
bimodal
conditions
task,
closely
replicated
seminal
Fries
(2012).
Specifically,
they
capitalised
reset
(in
modality)
automatically
drive
one
(left
vs.
right)
streams
events
uncued
locations.
fluctuated
counter
phase
attended
locations,
confirming
supramodal
processing.
modality
entirely
earlier
finding
where
alpha-range
(9
response
decision
making
(Ho
combined
dichotic
oddball
paradigm
test
violating
sensory
expectations
made
novel
observation
stimuli
played
non-anticipated
ear
induce
subsequent
theta-range
(7.6
accuracy.
update
representations
following
violations
expectations.
concluded
that,
although
rhythmicity
corroborated
(growing)
number
special
considerations
analytical
necessary
Brookshire,
2021).
need
chosen,
require
large
trials
participants.
On
note,
der
Werf
unable
replicate
(Fiebelkorn
Helfrich
modified
Egly-Driver
(Egly
1994)
detecting
appear
end
(i.e.,
location)
other
space-based,
non-cued
bar,
equidistant
bar
(object-based,
location).
No
pattern
accuracy
locations
level
predictive
validity,
though
exploratory
did
reveal
~7–8
when
cues
moderately
informative.
commentary
al.'s
study,
proposes
despite
being
comparable
(Helfrich
per
condition
replication
too
reliably
detect
further
suggests
purely
data
limiting
combining
simultaneously
recorded
electrophysiology
(but
ten
Oever
2022,
issue,
Fiebelkorn's
commentary).
Magneto-
electroencephalography
(M/EEG)
allow
investigating
activity.
They
enable
analyses
performance,
detection,
parameters
(phase
amplitude)
presentation.
Most
M/EEG
revolve
question
pre-stimulus
affect
attempting
specific,
previously
untested
conditions.
EEG
presented
detected
targets
rhythmically
counter-phase
predicted
modalities.
Benwell
challenging
letter
identification
measure
subjective
awareness
trial.
confirmed
reports
(also
By
contrast,
had
accuracy,
again
replicating
1952).
Similarly,
Michail
discrimination
corresponding
phase.
unique
aspect
experiment
long
2.5
s.
Accordingly,
speculate
less
lasting
several
cycles.
Sheldon
Mathewson
set
out
post-stimulus
likelihood
guessing.
reproduced
precisely
analysed
error
distribution
models
yield
separate
estimates
Conceptually,
similar
who
'Rhythmicity
behaviour').
(Mathewson
2009;
Fakche
2022),
performance.
Instead,
2–7
activities
Zazio
issue),
turn,
clear
behaviour.
resembled
(Busch
2009),
reported
Using
MEG
source
analysis,
stimulus-evoked
inversely
related
occipito-temporal
areas,
whereas
localised
occipital
prefrontal
areas.
Whilst
assessed
analysing
Es
(2020,
used
vector
machine
decode
(counter/clockwise)
signal.
classification
along
theta/alpha
frontal
eye
field
parietal
cortex
contralateral
grating
stimulus.
reflected
(reaction
times),
leaving
unknown.
Gaillard
Ben
Hamed
neurophysiological
argue
seems
continuously
regions
alternates
periodically
center
periphery
parieto-frontal
networks.
two-stage
positing
combination
continuous
interact
conscious
percepts
(Herzog
Vigué-Guix
attempted
demonstrate
interesting
features
stand
section.
First,
aimed
Callaway
Yeager
(1960),
papers
looking
into
idea.
closed-loop
analyse
real-time
(bright
LED
flashes)
selectively
rhythm.
Second,
kept
eyes
closed
throughout
experiment,
amplified
facilitated
extracting
its
comparably
small
sample
demonstrating
level.
reliable
estimation
parameter
managed
present
accordingly,
onset
times
participant.
putative
sizable
enough
practical
relevance,
signal
interface
applications.
Along
phase,
recent
investigated
instantaneous
within-
between-participant
integration
temporally
proximal
(Samaha
Postle,
2015)
multisensory
(audiovisual)
(Cecere
Keil
Senkowski,
2017),
theory
cycles
(VanRullen,
2016).
London
(2022,
extend
audiovisual
supra-threshold
stimuli.
occipito-parietal
electrodes
increased
sensitivity,
found.
results,
those
(Buergers
Noppeney,
cast
doubt
notion
determining
factor
sensitivity
perception.
provided
reviewed
thus
far
provide
answer
way
Behavioural
issue
frequently
perhaps
surprising
contrasts
suggestion
(Fiebelkorn,
2021,
given
represents
measurement
question.
tasks
appears
quite
robust,
(see,
e.g.,
D.
Schneider
(Zazio
Therefore,
markedly
weaker
compared
effects.
aligns
Benwell,
Keitel,
Notably,
even
subset
considered
attempts
(Plöchl
Der
least
very
designs
(van
mixed.
Replication
extension
key
will
critical
development
(Pavlov
valuable
examples.
It
crucial
methodologies
optimised
2022).
flaws
(such
power),
important
validated
replications.
ideally
trial
numbers)
terms
overall
size.
collaborative
run
labs
(Open
Science
Collaboration,
2015).
Another
future
step
derive
hypotheses
existing
theories
about
tasks,
states
(and
not).
1932)
predicts
is,
excitability.
arguably
case
short
durations
contrast
feature
longer
(Michail
Mathewson,
issue).
challenge
define
benchmark
'just
works',
stimuli,
trusted
fields
neuroscience
developed
conventional
eliciting
interest,
capture
(Theeuwes,
1992),
cueing
(Carrasco,
2011),
markers
(Ngiam
Establishing
standard
vantage
point
chart
determine
affects
Manipulating
periodic
tool
sampling.
As
Quigley
reports,
dates
back
Adrian
Matthews
(1934)
Walter
(1954),
light
light-induced
responses
synchronisation
inputs
since
termed
'entrainment'.
entrainment
remained
pervasive
drew
strengths
major
routes:
explanatory
functions,
versatility
technique
experimenters
and,
later
on,
interventionists.
Regarding
power,
Dynamic
Attending
Theory,
posits
internal
oscillators
rhythms)
synchronise
(Jones
Boltz,
1989;
Henry
Herrmann,
2014).
Once
established,
synchronised
cycling
optimal
cortical
coincide
upcoming
facilitates
Lakatos,
2009).
widely
promoted
general
interactions
input
(Lakatos
Tavano
emblematic
crucially
underlie
ability
tune
segment
understand
speech
Rimmele
Hauswald
2020,
From
perspective
experimenters,
versatile
method
directly
manipulating
Next
stimulation,
magnetic
electrical
non-invasive
(NIBS)
(Thut,
Schyns,
2011).
prospect
influencing
inspired
interventions
pathological
please
Tichko
(2020)
gamma-frequency
(40
attempt
counteract
pathophysiologies
linked
Alzheimer's
disease
(Iaccarino
strong
integrating
music-based
currently
therapy.
enthusiastically
overall,
unclear,
implementing
applies
circumscribed
situations.
One
significance
benefits
beyond
regularities
input.
implements
selective
(Calderone
2013),
facilitate
behaviourally
providing
periods
Barne
predictably
recurring
(here:
tone
frequency)
lead
higher
predictable
features,
embedded
regular
sequences.
interleaved
instructed
compare
them
probe
brief
retention
interval.
Although
find
benefit
non-rhythmic
de
Graaf
Duecker,
W.
M.
Lin,
Oetringer,
Rassili
Ordin,
Sun
nor
pre-probe
templates
period,
cortices
intermittent
pre-activation
anticipation
anticipatory
anti-phasic
activation
supports
puts
maximally
excitable
(potential)
delivery.
Moreover,
self-sustain
ceases.
Lin
three
experiments
versions
pitch
total
181
occurring
discriminated
faster
accurately
out-of-phase.
first
experiments,
low-frequency
1–3
Hz.
paradigm,
Hickok
(2015)
in-phase
easily,
entrainment.
findings.
After
amplitude-modulated
noise,
responded
tones
constant
noise
pre-target
noise.
some
periodicities
consistently
Saberi
Hickok,
Ordin
presenting
sequence
(linguistic)
syllables
(non-linguistic)
natural
sounds
similarly
affected
intermediately
sound.
neither
type
exceeded
irregular
Further
hinted
reactio
Language: Английский
Representation of vocalizations in the frontal auditory field and the dorsal auditory cortex of bats
Stephen Gareth Hoerpel,
No information about this author
Sonja C. Vernes,
No information about this author
Uwe Firzlaff
No information about this author
et al.
Annals of the New York Academy of Sciences,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
In
bats,
which
express
a
complex
vocal
repertoire
and
are
considered
learners,
the
frontal
auditory
field
(FAF)
is
supposedly
placed
in
cortico‐striatal
network
for
vocal–motor
control.
The
FAF
receives
input
from
cortex
(AC)
other
nuclei
via
multiple
pathways.
However,
not
much
known
about
transition
of
information
on
vocalizations
AC
to
FAF.
bat
consists
different
subfields,
among
dorsal
fields
(dAC)
characterized
by
precise
coding
temporal
envelope
vocalizations.
dAC
should,
therefore,
be
major
source
feedback
self‐produced
or
perceived
Our
study
aimed
investigate
specificity
encoding
types
neurons.
Using
extracellular
recordings
anesthetized
Phyllostomus
discolor
,
we
describe
basic
response
properties
both
cortical
areas
compare
responses
prerecorded
behaviorally
relevant
call
categories
single
calls
was
higher
than
neurons,
terms
firing
patterns
strength.
These
findings
highlight
importance
neural
control
communication
bats.
Language: Английский
Oscillatory Waveform Shape and Temporal Spike Correlations Differ across Bat Frontal and Auditory Cortex
Journal of Neuroscience,
Journal Year:
2024,
Volume and Issue:
44(10), P. e1236232023 - e1236232023
Published: Jan. 23, 2024
Neural
oscillations
are
associated
with
diverse
computations
in
the
mammalian
brain.
The
waveform
shape
of
oscillatory
activity
measured
cortex
relates
to
local
physiology
and
can
be
informative
about
aberrant
or
dynamically
changing
states.
However,
how
differs
across
distant
yet
functionally
anatomically
related
cortical
regions
is
largely
unknown.
In
this
study,
we
capitalize
on
simultaneous
recordings
field
potentials
(LFPs)
auditory
frontal
cortices
awake,
male
Language: Английский
Phase–Amplitude Coupling between Theta Rhythm and High-Frequency Oscillations in the Hippocampus of Pigeons during Navigation
Animals,
Journal Year:
2024,
Volume and Issue:
14(3), P. 439 - 439
Published: Jan. 29, 2024
Navigation
is
a
complex
task
in
which
the
hippocampus
(Hp),
plays
an
important
role,
may
be
involved
interactions
between
different
frequency
bands.
However,
little
known
whether
this
cross-frequency
interaction
exists
Hp
of
birds
during
navigation.
Therefore,
we
examined
electrophysiological
characteristics
hippocampal
domestic
pigeons
(Columba
livia
domestica)
Two
goal-directed
navigation
tasks
with
locomotor
modes
were
designed,
and
local
field
potentials
(LFPs)
recorded
for
analysis.
We
found
that
amplitudes
high-frequency
oscillations
dynamically
modulated
by
phase
co-occurring
theta-band
both
ground-based
maze
outdoor
flight
The
amplitude
sub-frequency
bands
theta
at
tasks,
process
was
independent
path
goal.
These
results
suggest
phase–amplitude
coupling
(PAC)
avian
more
associated
ongoing
cognitive
demands
navigational
processes.
Our
findings
contribute
to
understanding
potential
mechanisms
PAC
on
multi-frequency
informational
provide
valuable
insights
into
cross-species
evolution.
Language: Английский
The pale spear‐nosed bat: A neuromolecular and transgenic model for vocal learning
Annals of the New York Academy of Sciences,
Journal Year:
2022,
Volume and Issue:
1517(1), P. 125 - 142
Published: Sept. 7, 2022
Abstract
Vocal
learning,
the
ability
to
produce
modified
vocalizations
via
learning
from
acoustic
signals,
is
a
key
trait
in
evolution
of
speech.
While
extensively
studied
songbirds,
mammalian
models
for
vocal
are
rare.
Bats
present
promising
study
system
given
their
gregarious
natures,
small
size,
and
some
species
be
maintained
captive
colonies.
We
utilize
pale
spear‐nosed
bat
(
Phyllostomus
discolor
)
report
advances
establishing
this
as
tractable
model
understanding
learning.
have
taken
an
interdisciplinary
approach,
aiming
provide
integrated
across
genomics
(Part
I),
neurobiology
II),
transgenics
III).
In
Part
I,
we
generated
new,
high‐quality
genome
annotations
coding
genes
noncoding
microRNAs
facilitate
functional
evolutionary
studies.
II,
traced
connections
between
auditory‐related
brain
regions
reported
neuroimaging
explore
structure
gene
expression
patterns
highlight
regions.
III,
created
first
successful
transgenic
bats
by
manipulating
FoxP2
,
speech‐related
gene.
These
approaches
facilitating
mechanistic
can
also
contribute
other
areas
investigation
that
P.
or
species.
Language: Английский
Oscillatory waveform shape and temporal spike correlations differ across bat frontal and auditory cortex
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: July 3, 2023
Abstract
Neural
oscillations
are
associated
with
diverse
computations
in
the
mammalian
brain.
The
waveform
shape
of
oscillatory
activity
measured
cortex
relates
to
local
physiology,
and
can
be
informative
about
aberrant
or
dynamically
changing
states.
However,
how
differs
across
distant
yet
functionally
anatomically
related
cortical
regions
is
largely
unknown.
In
this
study,
we
capitalize
on
simultaneous
recordings
field
potentials
(LFPs)
auditory
frontal
cortices
awake,
male
Carollia
perspicillata
bats
examine,
a
cycle-by-cycle
basis,
differences
regions.
We
find
that
markedly
fronto-auditory
circuit
even
for
temporally
correlated
rhythmic
comparable
frequency
ranges
(i.e.
delta
gamma
bands)
during
spontaneous
activity.
addition,
report
consistent
between
areas
variability
individual
cycles.
A
conceptual
model
predicts
higher
spike-spike
spike-LFP
correlations
more
asymmetric
shape,
phenomenon
was
observed
data:
were
cortex.
suggests
relationship
spike
areas.
Altogether,
these
results
indicate
possess
distinct
dynamics
anatomical
functional
diversity
circuit.
Significance
statement
brain
many
animals
displays
intricate
oscillations,
which
usually
characterized
terms
their
amplitude.
Here,
study
from
bat
additionally
focusing
characteristic
shape.
reveals
clear
regularity,
when
similar.
waveforms
result
stronger
neural
spikes
electrical
Such
predictions
supported
by
data.
findings
shed
light
onto
unique
properties
different
areas,
providing
key
insights
into
distinctive
physiology
within
Language: Английский
Congenital Deafness Reduces Alpha-Gamma Cross-Frequency Coupling in the Auditory Cortex
Hearing Research,
Journal Year:
2024,
Volume and Issue:
449, P. 109032 - 109032
Published: May 17, 2024
Neurons
within
a
neuronal
network
can
be
grouped
by
bottom-up
and
top-down
influences
using
synchrony
in
oscillations.
This
creates
the
representation
of
perceptual
objects
from
sensory
features.
Oscillatory
activity
differentiated
into
stimulus-phase-locked
(evoked)
non-phase-locked
(induced).
The
former
is
mainly
determined
input,
latter
higher-level
(cortical)
processing.
Effects
auditory
deprivation
on
cortical
oscillations
have
been
studied
congenitally
deaf
cats
(CDCs)
cochlear
implant
(CI)
stimulation.
CI-induced
alpha,
beta,
gamma
were
compromised
cortex
CDCs.
Furthermore,
information
flow
between
secondary
primary
areas
hearing
cats,
conveyed
induced
alpha
oscillations,
was
lost
Here
we
used
matching
pursuit
algorithm
to
assess
components
such
oscillatory
local
field
potentials
recorded
A1.
Additionally
loss
also
found
evoked
theta
CDCs
directly
related
reduced
high-frequency
(gamma-band)
due
cross-frequency
coupling.
quantified
coupling
adult
1)
hearing-experienced,
acoustically
stimulated
(aHCs),
2)
hearing-experienced
following
acute
pharmacological
deafening
subsequent
CIs,
thus
electrically
(eHCs),
3)
We
significant
all
animal
groups
>
70%
auditory-responsive
sites.
predominant
aHCs
eHCs
theta/alpha
phase
power.
In
replaced
delta/theta
phase.
Thus,
alpha/theta
synchronize
only
cats.
absence
contributes
power
CDCs,
thereby
signifying
impaired
activity.
Language: Английский
Echolocation reverses information flow in a cortical vocalization network
Research Square (Research Square),
Journal Year:
2021,
Volume and Issue:
unknown
Published: May 26, 2021
Abstract
The
mammalian
frontal
and
auditory
cortices
are
fundamental
structures
supporting
vocal
behaviour,
yet
the
patterns
of
information
exchange
between
these
regions
during
vocalization
remain
unknown.
Here,
we
address
this
issue
by
means
electrophysiological
recordings
in
fronto-auditory
network
freely-vocalizing
Carollia
perspicillata
bats.
We
show
that
oscillations
predict
type
with
complementary
across
structures.
Transfer
entropy
analyses
oscillatory
activity
revealed
directed
circuit,
predominantly
top-down
nature
(frontal
to
auditory).
dynamics
flow
depended
on
timing
relative
onset.
Remarkably,
observed
emergence
predominant
bottom-up
transfer,
only
when
animals
produced
calls
imminent
post-vocal
consequences
(echolocation
signals).
These
results
unveil
changes
a
large-scale
sensory
association
associated
behavioural
highly
model.
Language: Английский
Echolocation reverses information flow in a cortical vocalization network
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2021,
Volume and Issue:
unknown
Published: March 15, 2021
Abstract
The
mammalian
frontal
and
auditory
cortices
are
important
for
vocal
behaviour.
Here,
using
local
field
potential
recordings,
we
demonstrate
the
first
time
that
timing
spatial
pattern
of
oscillations
in
fronto-auditory
cortical
network
vocalizing
bats
(
Carollia
perspicillata
)
predict
purpose
vocalization:
echolocation
or
communication.
Transfer
entropy
analyses
revealed
predominantly
top-down
(frontal-to-auditory
cortex)
information
flow
during
spontaneous
activity
pre-vocal
periods.
dynamics
depended
on
behavioural
role
vocalization
relative
to
onset.
Remarkably,
observed
emergence
bottom-up
(auditory-to-frontal
transfer
patterns
specific
production,
leading
self-directed
acoustic
feedback.
Electrical
stimulation
areas
selectively
enhanced
responses
sounds
cortex.
These
results
reveal
unique
changes
across
sensory
cortices,
potentially
driven
by
a
highly
model.
Language: Английский