How facial expressions reveal acute pain in domestic animals with facial pain scales as a diagnostic tool
Frontiers in Veterinary Science,
Год журнала:
2025,
Номер
12
Опубликована: Март 4, 2025
The
growing
interest
in
managing
and
recognizing
pain
animals
has
led
to
the
search
for
more
sensitive
methods
evaluate
it,
especially
because
some
species
conceal
any
visible
changes
associated
with
or
are
not
easily
assessed.
Research
shown
that
an
animal's
facial
expression
when
exposed
painful
stimuli.
Thus,
developing
several
scales
(grimace
scales)
such
as
horses,
cattle,
pigs,
sheep,
donkeys,
rabbits,
rats,
mice,
cats
helped
improve
study
of
veterinary
medicine.
possibility
using
indicator
is
due
direct
relationship
between
activation
different
regions
Central
Nervous
System
somatosensory
cortex,
prefrontal
amygdala,
hippocampus,
hypothalamus,
their
connections
motor
cortex
elicit
responses
including
movement
muscles.
present
review
aims
discuss
neurobiological
association
acute
expressions
animals.
It
will
analyze
importance
characterization
use
grimace
farm,
companion,
laboratory
species.
Язык: Английский
The impact of war on animal welfare: the Imperial Japanese Navy’s manipulation of pigeon behavior in WW II
Humanities and Social Sciences Communications,
Год журнала:
2025,
Номер
12(1)
Опубликована: Фев. 7, 2025
Abstract
Throughout
modern
history,
animals
have
played
a
significant
role
in
human
warfare.
The
Imperial
Japanese
Navy
(IJN)
conducted
extensive
efforts
to
modify
the
natural
behaviors
of
pigeons
order
enhance
their
utility
military
operations.
To
enable
support
communications
aboard
moving
warships,
IJN
exposed
these
land-dwelling
birds
maritime
environments,
training
them
endure
challenging
conditions
such
as
inclement
weather,
extreme
temperatures,
long-distance
sea
flights,
and
night-time
navigation.
During
latter
stages
World
War
II,
Japan
faced
intensified
aerial
bombardments,
developed
concealed
underground
pigeon
lofts.
This
forced
adapt
subterranean
environments.
These
experiments,
driven
by
wartime
demands,
not
only
distorted
pigeons’
but
also
seriously
compromised
health
survival.
Many
died
during
experimentation,
while
even
larger
numbers
perished
on
battlefield.
Furthermore,
prolonged
shortage
specialized
personnel
led
inadequate
care
neglect
pigeons,
resulting
outbreak
infectious
diseases
then
deaths
that
could
been
avoided
among
birds.
Despite
advancements
technologies,
continue
be
exploited
warfare,
with
welfare
survival
ignorance.
Reflecting
historical
lessons,
it
is
imperative
recognize
warfare
ethics
should
extend
beyond
rights
encompass
protection
used
Язык: Английский
The Evolution of Dogs “smile”: Breed-specific Variations in the Relaxed Open Mouth Signal
Research Square (Research Square),
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 1, 2025
Abstract
Facial
expressions
play
a
crucial
role
in
social
communication,
and
animals
have
evolved
variety
of
signals
to
communicate
with
conspecifics.
This
study
investigates
the
Relaxed
Open
Mouth
(ROM)
expression
domestic
dogs
(
Canis
familiaris),
conserved
facial
signal
observed
during
playful
interactions,
by
examining
its
variation
across
30
breeds
comparing
it
wolves
lupus).
Using
Dog
Action
Coding
System
phylogenetic
comparative
methods,
ROM
execution
was
analysed
determine
whether
domestication
selective
breeding
influenced
expression.
The
results
reveal
significant
inter-breed
variability
execution,
some
exhibiting
muscle
recruitment
closely
resembling
wolves,
while
others
display
distinct
divergence.
Notably,
these
differences
do
not
always
align
genetic
relatedness,
suggesting
that
artificial
selection
has
shaped
expressivity
ways
transcend
proximity.
While
is
often
linked
enhanced
communicative
abilities,
findings
indicate
simplified
potentially
due
morphological
constraints
or
pressures.
novel
approach
could
also
be
applied
compare
species
existing
FACS
systems,
including
other
carnivores
primates.
Язык: Английский
Using deep learning models to decode emotional states in horses
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Апрель 23, 2025
Язык: Английский
Facial action units as biomarkers of postoperative pain in ovariohysterectomized bitches treated with cannabidiol and meloxicam
Research in Veterinary Science,
Год журнала:
2025,
Номер
193, С. 105734 - 105734
Опубликована: Июнь 3, 2025
Язык: Английский
Neurobiology and Anatomy of Facial Expressions in Great Apes: Application of the AnimalFACS and Its Possible Association with the Animal’s Affective State
Animals,
Год журнала:
2024,
Номер
14(23), С. 3414 - 3414
Опубликована: Ноя. 26, 2024
The
Facial
Action
Coding
System
(FACS)
is
an
anatomically
based
system
to
study
facial
expression
in
humans.
Currently,
it
recognized
that
nonhuman
animals,
particularly
primates,
have
extensive
ethogram
changes
according
the
context
and
affective
state.
of
great
apes,
closest
species
humans,
has
been
studied
using
ChimpFACS
OrangFACS
as
reliable
tools
code
expressions.
However,
although
FACS
does
not
infer
animal
emotions,
making
additional
evaluations
associating
with
other
parameters
could
contribute
understanding
expressions
primates
during
positive
or
negative
emotions.
present
review
aims
discuss
neural
correlates
anatomical
components
emotional
apes.
It
will
focus
on
use
Systems
(FACSs)
movements
muscles
(AUs)
chimpanzees,
orangutans,
gorillas
their
possible
association
state
Язык: Английский