Variations on an ancient theme — the central complex across insects
Current Opinion in Behavioral Sciences,
Год журнала:
2024,
Номер
57, С. 101390 - 101390
Опубликована: Апрель 9, 2024
The
central
complex
(CX)
is
a
highly
conserved
region
of
the
insect
brain,
and
its
ubiquitous
occurrence
suggests
that
neural
circuits
are
fundamental
importance.
While
overall
layout
has
not
changed
since
evolution
flight,
substantial
variations
exist
in
internal
organization
all
CX
components.
By
changing
details
system
repeating
columns
layers,
these
differences
affect
almost
crystalline
thus
characteristic
neuroarchitecture
directly
links
structure
with
function.
neuropil
level
changes
suggest
widespread
cellular
architecture
circuits,
data
at
deeper
levels
mostly
limited
to
fruit
fly
Drosophila.
Nevertheless,
interspecies
neuron-level
have
begun
emerge.
Whereas
small
compared
astounding
degree
conservation,
they
reveal
evolvable
aspects
circuitry,
providing
promising
starting
points
for
future
research
using
comparative
circuit-level
analysis.
Язык: Английский
The neuroethology of ant navigation
Current Biology,
Год журнала:
2025,
Номер
35(3), С. R110 - R124
Опубликована: Фев. 1, 2025
Unlike
any
other
group
of
animals,
all
ant
species
are
social:
individual
ants
share
the
food
they
gather
with
their
nestmates
and
as
a
consequence
must
repeatedly
leave
nest
to
find
then
return
home
it.
These
back-and-forth
foraging
trips
have
been
studied
for
about
century
much
our
growing
understanding
strategies
underlying
animal
navigation
has
come
from
these
studies.
One
important
strategy
that
use
keep
track
where
on
trip
is
'path
integration',
in
which
continuously
update
'home
vector'
gives
estimated
distance
direction
nest.
As
path
integration
accumulates
errors,
it
cannot
be
relied
bring
precisely
home:
such
precision
accomplished
by
using
views
acquired
before
start
foraging.
Further
learning
scaffolded
vectors
or
remembered
vectors,
guide
route
help
useful
experienced
way.
Many
rely
olfaction
well
vision
guidance
full
details
paths
revealed
how
mix
innate
learnt
multisensory
cues.
Wood
ants,
we
focus
this
review,
take
an
oscillating
along
pheromone
trail
sample
odours,
but
acquire
visual
information
only
at
peaks
troughs
oscillations.
To
provide
working
model
neural
basis
multimodal
navigational
outline
anatomy
functioning
major
central
brain
areas
circuits
-
complex,
mushroom
bodies
lateral
accessory
lobes
involved
coordination
behaviour
olfactory
patterns.
Because
brains
not
yet
well-studied,
work
done
notably,
Drosophila,
silkworm
moths
bees
derive
plausible
circuitry
can
deliver
ants'
strategies.
Язык: Английский
A historical perspective on the insect central complex: Anatomy, development, and function
Molecular Psychology Brain Behavior and Society,
Год журнала:
2025,
Номер
2, С. 19 - 19
Опубликована: Май 19, 2025
The
central
complex
(CX),
a
remarkable
brain
region
at
the
core
of
insect
behaviors,
has
been
subject
extensive
research
for
decades.
In
this
review,
we
offer
comprehensive
historical
perspective
on
anatomy,
development,
and
function
CX.
The
CX
consists
discrete
highly
structured
neuropils
found
center
brain,
which
are
conserved
across
insects.
developmental
processes
that
shape
themselves
early
research,
had
shown
to
receive
visual
information
control
motor
function.
Using
increasingly
advanced
methods
throughout
years,
it
become
clear
is
involved
in
high-level
behavioral
control,
such
as
vector
navigation
goal
directed
orientation.
Its
numerical
simplicity
presents
rare
opportunity
study
structure-function
relationships
small
brains,
gain
insights
into
evolutionary
neurobiology,
develop
novel
neuromorphic
technologies
inspired
by
brains.
Since
spatial
tasks,
uniquely
suited
detailed
understanding
computations
required
these
level
neural
circuits.
Язык: Английский
Anatomical organization of the cerebrum of the praying mantis Hierodula membranacea
The Journal of Comparative Neurology,
Год журнала:
2024,
Номер
532(3)
Опубликована: Март 1, 2024
Abstract
Many
predatory
animals,
such
as
the
praying
mantis,
use
vision
for
prey
detection
and
capture.
Mantises
are
known
in
particular
their
capability
to
estimate
distances
by
stereoscopic
vision.
While
initial
visual
processing
centers
have
been
extensively
documented,
we
lack
knowledge
on
architecture
of
central
brain
regions,
pivotal
sensory
motor
transformation
higher
functions.
To
close
this
gap,
provide
a
three‐dimensional
(3D)
reconstruction
Asian
Hierodula
membranacea
.
The
atlas
facilitates
in‐depth
analysis
neuron
ramification
regions
aides
elucidating
potential
neuronal
pathways.
We
integrated
seven
3D‐reconstructed
interneurons
into
atlas.
In
total,
42
distinct
neuropils
cerebrum
were
reconstructed
based
synapsin‐immunolabeled
whole‐mount
brains.
Backfills
from
antenna
maxillary
palps,
well
immunolabeling
γ‐aminobutyric
acid
(GABA)
tyrosine
hydroxylase
(TH),
further
substantiate
identification
boundaries
areas.
composition
internal
organization
compared
anatomical
fruit
fly
(
Drosophila
melanogaster
)
two
available
atlases
Polyneoptera—the
desert
locust
Schistocerca
gregaria
Madeira
cockroach
Rhyparobia
maderae
).
This
study
paves
way
detailed
analyses
circuitry
promotes
cross‐species
comparisons.
discuss
differences
between
holometabolous
polyneopteran
insects.
Identification
sites
neurons
supports
previous
claims
about
homologous
structures
optic
lobes
flies
mantises.
Язык: Английский
A historical perspective on the insect central complex: Anatomy, development, and function
Molecular Psychology Brain Behavior and Society,
Год журнала:
2024,
Номер
2, С. 19 - 19
Опубликована: Ноя. 4, 2024
The
central
complex
(CX),
a
remarkable
brain
region
at
the
core
of
insect
behaviors,
has
been
subject
extensive
research
for
decades.
In
this
review,
we
offer
comprehensive
historical
perspective
on
anatomy,
development,
and
function
CX.
The
CX
consists
discrete
highly
structured
neuropils
found
center
brain,
which
are
conserved
across
insects
arthropods.
developmental
processes
that
shape
themselves
insects.
early
research,
had
shown
to
receive
visual
information
control
motor
function.
Using
increasingly
advanced
methods
throughout
years,
it
become
clear
is
involved
in
high-level
behavioral
control,
such
as
vector
navigation
goal
directed
orientation.
Its
numerical
simplicity
presents
rare
opportunity
study
structure-function
relationships
small
brains,
gain
insights
into
evolutionary
neurobiology,
develop
novel
neuromorphic
technologies
inspired
by
brains.
Since
spatial
tasks,
uniquely
suited
detailed
understanding
computations
required
these
level
neural
circuits.
Язык: Английский
Neuroarchitecture of the Central Complex in the Madeira Cockroach Rhyparobia maderae: Tangential Neurons
The Journal of Comparative Neurology,
Год журнала:
2024,
Номер
532(12)
Опубликована: Дек. 1, 2024
Navigating
in
diverse
environments
to
find
food,
shelter,
or
mating
partners
is
an
important
ability
for
nearly
all
animals.
Insects
have
evolved
navigational
strategies
survive
challenging
and
unknown
environments.
In
the
insect
brain,
central
complex
(CX)
plays
role
spatial
orientation
directed
locomotion.
It
consists
of
protocerebral
bridge
(PB),
body
with
upper
(CBU)
lower
division
(CBL),
paired
noduli
(NO).
As
shown
various
species,
CX
integrates
multisensory
cues,
including
sky
compass
signals,
wind
direction,
ego-motion
provide
goal-directed
vector
output
used
steering
locomotion
flight.
While
most
these
data
originate
from
studies
on
day-active
insects,
less
known
about
night-active
species
such
as
cockroaches.
Following
our
analysis
columnar
pontine
neurons,
present
study
complements
investigation
cellular
architecture
Madeira
cockroach
by
analyzing
tangential
neurons.
Based
single-cell
tracer
injections,
we
further
details
internal
organization
distinguished
27
types
neuron,
three
neuron
innervating
PB,
six
CBL,
18
CBU.
The
anterior
lip,
a
brain
area
flies
highly
reduced
bees,
crepine
are
strongly
connected
CBU
contrast
other
species.
One
revealed
direct
connection
between
mushroom
bodies
Язык: Английский