Frontiers in Computational Neuroscience,
Journal Year:
2023,
Volume and Issue:
17
Published: July 6, 2023
Convolutional
Neural
Networks
(CNN)
are
a
class
of
machine
learning
models
predominately
used
in
computer
vision
tasks
and
can
achieve
human-like
performance
through
from
experience.
Their
striking
similarities
to
the
structural
functional
principles
primate
visual
system
allow
for
comparisons
between
these
artificial
networks
their
biological
counterparts,
enabling
exploration
how
functions
neural
representations
may
emerge
real
brain
limited
set
computational
principles.
After
considering
basic
features
CNNs,
we
discuss
opportunities
challenges
endorsing
CNNs
as
silico
system.
Specifically,
highlight
several
emerging
notions
about
anatomical
physiological
properties
that
still
need
be
systematically
integrated
into
current
CNN
models.
These
tenets
include
implementation
parallel
processing
pathways
early
stages
retinal
input
reconsideration
assumptions
concerning
serial
progression
information
flow.
We
suggest
design
choices
architectural
constraints
could
facilitate
closer
alignment
with
biology
provide
causal
evidence
predictive
link
systems.
Adopting
this
principled
perspective
potentially
lead
new
research
questions
applications
beyond
modeling
object
recognition.
Current Biology,
Journal Year:
2021,
Volume and Issue:
31(11), P. R741 - R762
Published: June 1, 2021
The
superior
colliculus,
or
tectum
in
the
case
of
non-mammalian
vertebrates,
is
a
part
brain
that
registers
events
surrounding
space,
often
through
vision
and
hearing,
but
also
electrosensation,
infrared
detection,
other
sensory
modalities
diverse
vertebrate
lineages.
This
information
used
to
form
maps
space
positions
different
salient
stimuli
relation
individual.
are
arranged
layers
with
visual
input
uppermost
layer,
senses
deeper
positions,
spatially
aligned
motor
map
deepest
layer.
Here,
we
will
review
organization
intrinsic
function
tectum/superior
colliculus
processed
within
tectal
circuits.
We
discuss
tectal/superior
outputs
conveyed
directly
downstream
circuits
via
thalamus
cortical
areas
control
various
aspects
behavior.
evolutionarily
conserved
among
all
tailored
specialties
each
lineage,
its
roles
have
shifted
emergence
cerebral
cortex
mammals.
illustrate
both
divergent
properties
evolution
by
comparing
processing
lampreys
belonging
oldest
group
extant
larval
zebrafish,
rodents,
vertebrates
including
primates.
Neuron,
Journal Year:
2023,
Volume and Issue:
111(16), P. 2601 - 2613.e5
Published: June 22, 2023
The
brain
makes
decisions
by
accumulating
evidence
until
there
is
enough
to
stop
and
choose.
Neural
mechanisms
of
accumulation
are
established
in
association
cortex,
but
the
site
mechanism
termination
unknown.
Here,
we
show
that
superior
colliculus
(SC)
plays
a
causal
role
terminating
decisions,
provide
for
which
this
occurs.
We
recorded
simultaneously
from
neurons
lateral
intraparietal
area
(LIP)
SC
while
monkeys
made
perceptual
decisions.
Despite
similar
trial-averaged
activity,
found
distinct
single-trial
dynamics
two
areas:
LIP
displayed
drift-diffusion
bursting
dynamics.
hypothesized
bursts
manifest
threshold
applied
signals
represented
terminate
decision.
Consistent
with
hypothesis,
inactivation
produced
behavioral
effects
diagnostic
an
impaired
sensor
prolonged
buildup
activity
LIP.
results
reveal
transformation
deliberation
commitment.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: Jan. 2, 2025
Alzheimer's
disease
is
characterized
by
progressive
amyloid
deposition
and
cognitive
decline,
yet
the
pathological
mechanisms
treatments
remain
elusive.
Here
we
report
therapeutic
potential
of
low-intensity
40
hertz
blue
light
exposure
in
a
5xFAD
mouse
model
disease.
Our
findings
reveal
that
treatment
prevents
memory
decline
4-month-old
mice
motivation
loss
14-month-old
mice,
accompanied
restoration
glial
water
channel
aquaporin-4
polarity,
improved
brain
drainage
efficiency,
reduction
hippocampal
lipid
accumulation.
We
further
demonstrate
beneficial
effects
are
mediated
through
activation
vLGN/IGL-Re
visual
circuit.
Notably,
concomitant
use
anti-Aβ
antibody
with
demonstrates
soluble
Aβ
clearance
performance
mice.
These
offer
functional
evidence
on
Aβ-related
pathologies
suggest
its
as
supplementary
strategy
to
augment
efficacy
antibody-based
therapy.
Treatments
for
(AD)
limited.
Here,
authors
show
activates
circuit
boost
glymphatic
drainage,
enhances
memory,
motivation,
therapy
AD.
Frontiers in Neuroscience,
Journal Year:
2022,
Volume and Issue:
16
Published: Nov. 21, 2022
Although
the
manifestation
of
trauma
in
body
is
a
phenomenon
well-endorsed
by
clinicians
and
traumatized
individuals,
neurobiological
underpinnings
this
remain
unclear.
The
notion
somatic
sensory
processing,
which
encompasses
vestibular
somatosensory
processing
relates
to
systems
concerned
with
how
physical
exists
space,
introduced
as
major
contributor
overall
regulatory,
social-emotional,
self-referential
functioning.
From
phylogenetically
ontogenetically
informed
perspective,
trauma-related
symptomology
conceptualized
be
grounded
brainstem-level
dysfunction
its
cascading
influences
on
physiological
arousal
modulation,
affect
regulation,
higher-order
capacities.
Lastly,
we
introduce
novel
hierarchical
model
bridging
processes
limbic
neocortical
mechanisms
regulating
an
individual’s
emotional
experience
sense
relational,
agentive
self.
This
provides
working
framework
for
neurobiologically
assessment
treatment
conditions
from
perspective.
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.
Neuron,
Journal Year:
2023,
Volume and Issue:
111(12), P. 1876 - 1886.e5
Published: April 21, 2023
The
superficial
superior
colliculus
(sSC)
carries
out
diverse
roles
in
visual
processing
and
behaviors,
but
how
these
functions
are
delegated
among
collicular
neurons
remains
unclear.
Here,
using
single-cell
transcriptomics,
we
identified
28
neuron
subtypes
subtype-enriched
marker
genes
from
tens
of
thousands
adult
mouse
sSC
neurons.
We
then
asked
whether
the
sSC's
molecular
tuned
to
different
stimuli.
Specifically,
imaged
calcium
dynamics
single
vivo
during
stimulation
mapped
gene
transcripts
onto
same
ex
vivo.
Our
results
identify
a
subtype
inhibitory
accounting
for
∼50%
direction-selective
cells,
suggesting
genetic
logic
functional
organization
sSC.
In
addition,
our
studies
provide
comprehensive
atlas
multimodal
mapping
method
that
will
facilitate
investigation
their
respective
functions,
connectivity,
development.