bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Abstract
Locating
the
source
of
a
specific
sound
in
complex
environment
and
determining
its
saliency
is
critical
for
survival.
The
superior
colliculus
(SC),
sensorimotor
midbrain
structure,
plays
an
important
role
localization
has
been
shown
to
have
topographic
map
auditory
space
range
species.
In
mice,
previous
studies
using
broadband
white
noise
stimuli
found
that
neurons
use
high-frequency
monaural
spectral
cues
interaural
level
differences
(ILDs)
compute
spatially
restricted
receptive
fields
(RFs),
these
RFs
are
organized
topographically
along
azimuth.
However,
naturalistic
environment,
animal
encounters
may
rich
components;
however,
sources
can
still
be
localized
efficiently.
It
remains
unknown
whether
how
SC
respond
sounds
and,
turn,
RF.
Here,
we
show
results
from
large-scale
vivo
physiological
recordings
response
noise,
ultrasonic
pup
calls
chirps.
We
find
mouse
with
distinct
temporal
patterns
spatial
preference
predominantly
at
∼60
degrees
contralateral
addition,
categorized
based
on
their
spectrotemporal
field
demonstrated
there
least
4
subtypes
responsive
neurons.
Significance
Statement
(SC)
receives
visual
information
used
localize
objects.
While
organization
composition
visually
well
described,
much
less
known
about
types
properties
presented
calls,
chirp
mice
while
recording
Analysis
neuronal
responses
defines
classes
also
stimuli,
mainly
occur
when
side
but
not
front
animal.
These
lead
hypothesis
different
strategies
depending
source.
Physiological Reviews,
Journal Year:
2021,
Volume and Issue:
102(2), P. 689 - 813
Published: Sept. 6, 2021
During
the
past
30
yr,
investigating
physiology
of
eating
behaviors
has
generated
a
truly
vast
literature.
This
is
fueled
in
part
by
dramatic
increase
obesity
and
its
comorbidities
that
coincided
with
an
ever
increasing
sophistication
genetically
based
manipulations.
These
techniques
have
produced
results
remarkable
degree
cell
specificity,
particularly
at
signaling
level,
played
lead
role
advancing
field.
However,
putting
these
findings
into
brain-wide
context
connects
physiological
signals
neurons
to
behavior
somatic
requires
thorough
consideration
neuronal
connections:
field
also
seen
extraordinary
technological
revolution.
Our
goal
present
comprehensive
balanced
assessment
how
associated
energy
homeostasis
interact
many
brain
levels
control
behaviors.
A
major
theme
engage
sets
interacting
neural
networks
throughout
are
defined
specific
connections.
We
begin
discussing
some
fundamental
concepts,
including
ones
still
engender
vigorous
debate,
provide
necessary
frameworks
for
understanding
controls
meal
initiation
termination.
include
key
word
definitions,
ATP
availability
as
pivotal
regulated
variable
homeostasis,
neuropeptide
signaling,
homeostatic
hedonic
eating,
structure.
Within
this
context,
we
discuss
network
models
regions
endbrain
(or
telencephalon),
hypothalamus,
hindbrain,
medulla,
vagus
nerve,
spinal
cord
work
together
gastrointestinal
tract
enable
complex
motor
events
permit
animals
eat
diverse
situations.
Neuroscience Bulletin,
Journal Year:
2022,
Volume and Issue:
38(12), P. 1519 - 1540
Published: April 28, 2022
Abstract
The
superior
colliculus
(SC),
one
of
the
most
well-characterized
midbrain
sensorimotor
structures
where
visual,
auditory,
and
somatosensory
information
are
integrated
to
initiate
motor
commands,
is
highly
conserved
across
vertebrate
evolution.
Moreover,
cell-type-specific
SC
neurons
integrate
afferent
signals
within
local
networks
generate
defined
output
related
innate
cognitive
behaviors.
This
review
focuses
on
recent
progress
in
understanding
phenotypic
diversity
amongst
their
intrinsic
circuits
long-projection
targets.
We
further
describe
relevant
neural
specific
cell
types
relation
behavioral
outputs
functions.
systematic
delineation
organization,
types,
connections
put
into
context
species
as
these
depend
upon
laminar
architecture.
we
focus
circuitry
involving
saccadic
eye
movement,
Overall,
provides
insight
functioning
represents
a
basis
for
pathology
associated
with
dysfunction.
Nature Communications,
Journal Year:
2022,
Volume and Issue:
13(1)
Published: Sept. 5, 2022
Abstract
The
superior
colliculus
is
a
midbrain
structure
that
plays
important
roles
in
visually
guided
behaviors
mammals.
Neurons
the
receive
inputs
from
retinal
ganglion
cells
but
how
these
are
integrated
vivo
unknown.
Here,
we
discovered
high-density
electrodes
simultaneously
capture
activity
of
axons
and
their
postsynaptic
target
neurons
colliculus,
vivo.
We
show
cell
mouse
provide
single
precise
representation
retina
as
input
to
colliculus.
This
isomorphic
mapping
builds
scaffold
for
retinotopic
wiring
functionally
specific
connection
strength.
Our
methods
broadly
applicable,
which
demonstrate
by
recording
optic
tectum
zebra
finches.
find
common
rules
mice
finches
visual
world
encoded
connections
retinorecipient
areas.
PLoS Biology,
Journal Year:
2023,
Volume and Issue:
21(6), P. e3002133 - e3002133
Published: June 30, 2023
Characterizing
cellular
diversity
at
different
levels
of
biological
organization
and
across
data
modalities
is
a
prerequisite
to
understanding
the
function
cell
types
in
brain.
Classification
neurons
also
essential
manipulate
controlled
ways
understand
their
variation
vulnerability
brain
disorders.
The
BRAIN
Initiative
Cell
Census
Network
(BICCN)
an
integrated
network
data-generating
centers,
archives,
standards
developers,
with
goal
systematic
multimodal
type
profiling
characterization.
Emphasis
BICCN
on
whole
mouse
demonstration
prototype
feasibility
for
human
nonhuman
primate
(NHP)
brains.
Here,
we
provide
guide
spatial
approaches
employed
by
BICCN,
accessing
using
these
extensive
resources,
including
Data
Center
(BCDC),
which
serves
manage
integrate
ecosystem.
We
illustrate
power
ecosystem
through
vignettes
highlighting
several
analysis
visualization
tools.
Finally,
present
emerging
that
have
been
developed
or
adopted
toward
Findable,
Accessible,
Interoperable,
Reusable
(FAIR)
neuroscience.
combined
provides
comprehensive
resource
exploration
Neuron,
Journal Year:
2023,
Volume and Issue:
111(5), P. 727 - 738.e8
Published: Jan. 6, 2023
Top-down
projections
convey
a
family
of
signals
encoding
previous
experiences
and
current
aims
to
the
sensory
neocortex,
where
they
converge
with
external
bottom-up
information
enable
perception
memory.
Whereas
top-down
control
has
been
attributed
excitatory
pathways,
existence,
connectivity,
content
inhibitory
remain
elusive.
Here,
we
combine
synaptic
two-photon
calcium
imaging,
circuit
mapping,
cortex-dependent
learning,
chemogenetics
in
mice
identify
GABAergic
afferents
from
subthalamic
zona
incerta
as
major
source
input
neocortex.
Incertocortical
transmission
undergoes
robust
plasticity
during
learning
that
improves
transfer
mediates
behavioral
Unlike
incertocortical
form
disinhibitory
encodes
learned
relevance
bidirectional
manner
rapid
appearance
negative
responses
serves
main
driver
changes
stimulus
representation.
Our
results
therefore
reveal
distinctive
contribution
long-range
(dis)inhibitory
computational
flexibility
neocortical
circuits.
Nature,
Journal Year:
2024,
Volume and Issue:
631(8020), P. 378 - 385
Published: July 3, 2024
Abstract
The
execution
of
goal-oriented
behaviours
requires
a
spatially
coherent
alignment
between
sensory
and
motor
maps.
current
model
for
sensorimotor
transformation
in
the
superior
colliculus
relies
on
topographic
mapping
static
spatial
receptive
fields
onto
movement
endpoints
1–6
.
Here,
to
experimentally
assess
validity
this
canonical
alignment,
we
dissected
visuo-motor
network
performed
vivo
intracellular
extracellular
recordings
across
layers,
restrained
unrestrained
conditions,
both
visual
tuning
individual
premotor
neurons.
We
found
that
collicular
units
have
poorly
defined
respond
instead
kinetic
features,
revealing
existence
direct
vectorial
space
vectors,
rather
than
as
canonically
hypothesized.
show
neural
built
according
these
principles
is
ideally
placed
sustain
ethological
such
rapid
interception
moving
targets.
These
findings
reveal
novel
dimension
process.
By
extending
from
domain
work
provides
conceptual
framework
understanding
nature
convergence
its
relevance
guiding
goal-directed
behaviours.
iScience,
Journal Year:
2025,
Volume and Issue:
28(4), P. 112194 - 112194
Published: March 11, 2025
Recent
studies
have
revealed
diverse
neuron
types
in
the
superior
colliculus
(SC),
a
midbrain
structure
critical
for
sensorimotor
transformation.
Here,
as
an
important
step
toward
studying
function
of
these
subtypes,
we
characterize
10
transgenic
mouse
lines
based
on
recently
published
molecular
atlas
superficial
SC.
We
show
that
Cre
or
fluorescence
expression
some
corresponds
specifically
to
certain
transcriptomic
types.
These
include
two
GENSAT
been
used
target
morphological
cell
SC
and
three
knockin
lines.
In
contrast,
such
correspondence
is
not
seen
other
tested
mice.
Importantly,
pattern
marker
genes
all
highly
consistent
with
atlas.
Together,
our
support
correlation
between
types,
identify
useful
targeting
genetically,
demonstrate
validity
single-cell
transcriptomics
data.