bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 24, 2023
The
cognitive
processes
supporting
complex
animal
behavior
are
closely
associated
with
ubiquitous
movements
responsible
for
our
posture,
facial
expressions,
ability
to
actively
sample
sensory
environments,
and
other
critical
processes.
These
strongly
related
neural
activity
across
much
of
the
brain
often
highly
correlated
ongoing
processes,
making
it
challenging
dissociate
dynamics
that
support
from
those
movements.
In
such
cases,
a
issue
is
whether
separable
movements,
or
if
they
driven
by
common
mechanisms.
Here,
we
demonstrate
how
separability
motor
can
be
assessed,
and,
when
separable,
each
component
isolated.
We
establish
novel
two-context
behavioral
task
in
mice
involves
multiple
show
commonly
observed
taken
contaminated
When
components
isolated
using
approach
subspace
decomposition,
find
exhibit
distinct
dynamical
trajectories.
Further,
properly
accounting
movement
revealed
largely
separate
populations
cells
encode
variables,
contrast
"mixed
selectivity"
reported.
Accurately
isolating
particular
will
essential
developing
conceptual
computational
models
circuit
function
evaluating
cell
types
which
circuits
composed.
Bioacoustics,
Journal Year:
2022,
Volume and Issue:
32(2), P. 199 - 229
Published: Aug. 25, 2022
Some
aspects
of
the
neural
mechanisms
underlying
mouse
ultrasonic
vocalisations
(USVs)
are
a
useful
model
for
neurobiology
human
speech
and
speech-related
disorders.
Much
research
on
USVs
is
limited
to
offline
methods
supervised
classification
USVs,
hindering
discovery
new
types
study
real-time
free
behaviour.
To
address
these
issues,
we
developed
AMVOC
(Analysis
Mouse
VOcal
Communication)
as
free,
open-source
software
detect
analyse
USVs.
When
compared
hand-annotated
ground-truth
USV
data,
AMVOC's
detection
functionality
(both
online)
has
high
accuracy
outperforms
leading
in
noisy
conditions.
also
includes
an
unsupervised
deep
learning
approach
that
facilitates
analysis
data
by
training
clustering
based
latent
features
extracted
convolutional
autoencoder.
The
visualised
graphical
user
interface
(GUI)
which
allows
users
evaluate
performance.
These
results
can
be
used
explore
vocal
repertoire
space
individual
animals.
In
this
way,
will
facilitate
analyses
broader
range
experimental
conditions
allow
develop
previously
inaccessible
designs
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2022,
Volume and Issue:
unknown
Published: Jan. 2, 2022
Abstract
Artificial
intelligence
(AI)
is
an
emerging
tool
for
high-resolution
behavioural
analysis
and
conduction
of
human-free
experiments.
Here,
we
applied
AI-based
system,
AVATAR,
which
automatically
virtualises
3D
motions
from
the
detection
9
body
parts.
This
allows
quantification,
classification
specific
action
sequences
in
real-time
facilitates
closed-loop
manipulation,
triggered
by
onset
behaviours,
freely
moving
mice.
Current Biology,
Journal Year:
2023,
Volume and Issue:
33(17), P. 3610 - 3624.e4
Published: Aug. 14, 2023
Motor
planning
facilitates
rapid
and
precise
execution
of
volitional
movements.
Although
motor
has
been
classically
studied
in
humans
monkeys,
the
mouse
become
an
increasingly
popular
model
system
to
study
neural
mechanisms
planning.
It
remains
yet
untested
whether
mice
primates
share
common
behavioral
features
We
combined
videography
a
delayed
response
task
paradigm
autonomous
measure
non-body-restrained
mice.
resulted
both
reaction
time
(RT)
savings
increased
movement
accuracy,
replicating
classic
effects
primates.
found
that
was
reflected
task-relevant
body
features.
Both
specific
actions
prepared
degree
readiness
could
be
read
out
online
during
The
readout
further
revealed
evidence
simultaneous
preparation
for
multiple
under
uncertain
conditions.
These
results
validate
as
planning,
demonstrate
feature
movements
powerful
real-time
readiness,
offer
can
parallel
process
permits
selection
actions.
bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: Aug. 24, 2023
The
cognitive
processes
supporting
complex
animal
behavior
are
closely
associated
with
ubiquitous
movements
responsible
for
our
posture,
facial
expressions,
ability
to
actively
sample
sensory
environments,
and
other
critical
processes.
These
strongly
related
neural
activity
across
much
of
the
brain
often
highly
correlated
ongoing
processes,
making
it
challenging
dissociate
dynamics
that
support
from
those
movements.
In
such
cases,
a
issue
is
whether
separable
movements,
or
if
they
driven
by
common
mechanisms.
Here,
we
demonstrate
how
separability
motor
can
be
assessed,
and,
when
separable,
each
component
isolated.
We
establish
novel
two-context
behavioral
task
in
mice
involves
multiple
show
commonly
observed
taken
contaminated
When
components
isolated
using
approach
subspace
decomposition,
find
exhibit
distinct
dynamical
trajectories.
Further,
properly
accounting
movement
revealed
largely
separate
populations
cells
encode
variables,
contrast
"mixed
selectivity"
reported.
Accurately
isolating
particular
will
essential
developing
conceptual
computational
models
circuit
function
evaluating
cell
types
which
circuits
composed.