Warm versus cool colors and their relation to color perception
Journal of Vision,
Год журнала:
2025,
Номер
25(4), С. 13 - 13
Опубликована: Апрель 23, 2025
The
distinction
between
warm
and
cool
colors
is
widely
considered
a
fundamental
aspect
of
human
color
experience,
but
whether
it
reflects
properties
perception
or
associations
remains
unclear.
We
examined
how
the
warm-cool
division
related
to
perceptual
landmarks
coding
appearance.
Observers
made
ratings
for
36
hue
angles
at
three
luminance
levels
also
estimated
their
unique
(e.g.,
yellow
red)
binary
orange)
hues.
dimension
was
reliably
identified
by
most
observers,
consistent
across
lightness
levels,
varied
along
an
orangish-red
greenish-blue
that
intermediate
both
principal
chromatic
dimensions
early
cone-opponent
(cardinal)
perceptual-opponent
(red-green
blue-yellow)
axes.
When
stimuli
were
projected
into
uniform
space
(CIELAB),
close
correspondence
found
perceived
strength
(saturation)
different
hues,
based
on
LAB
chroma.
Specifically,
peak
values
with
weakest
saturation,
boundaries
two
categories
corresponded
highest
saturation.
This
pattern
could
arise
if
vision
selectively
adapted
spectra
provides
potential
basis
strong
unexplained
asymmetries
in
built
perceptually
spaces.
Язык: Английский
The P2 component reveals the early perception of varied hues of colors differs between art majors and non-art major
Опубликована: Май 17, 2024
The
study
investigating
whether
there
are
different
perception
cognitive
processes
in
varied
color
hues
between
art
and
non-art
groups
remains
unknow.
aims
to
investigate
how
affect
perception.
Participants,
divided
into
(n=22)
groups,
completed
tasks
using
cool,
warm,
neutral
while
their
EEG
behavioral
data
were
recorded.
findings
indicated
that
participants
from
both
consistently
rated
the
emotional
valence
of
warmer
colors
higher
than
cool
or
hues.
event-related
potentials
results
revealed
warm
elicited
larger
P3
amplitude
other
two
for
groups.
Additionally,
was
a
significant
interaction
effect
group
hue
P2
components.
amplitudes
three
significantly
group,
but
not
group.
Decoding
analysis
showed
difference
stimuli
permutesion
test
component
time-window.
t-test
also
decoding
accuracies
during
time
window
component.
pattern
this
induced
stronger
attention
hues,
with
being
most
positive
terms
appraisal,
early
may
differ
Язык: Английский
Asymmetric Activation of Retinal ON and OFF Pathways by AOSLO Raster-Scanned Visual Stimuli
bioRxiv (Cold Spring Harbor Laboratory),
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 17, 2024
Adaptive
optics
scanning
light
ophthalmoscopy
(AOSLO)
enables
high-resolution
retinal
imaging,
eye
tracking,
and
stimulus
delivery
in
the
living
eye.
AOSLO-mediated
visual
stimuli
are
created
by
temporally
modulating
excitation
as
it
scans
across
retina.
As
a
result,
each
location
within
field
of
view
receives
brief
flash
during
scanner
cycle
(every
33-40
ms).
Here
we
used
vivo
calcium
imaging
with
AOSLO
to
investigate
impact
this
intermittent
stimulation
on
ON
OFF
pathways.
Raster-scanned
backgrounds
exaggerated
existing
ON-OFF
pathway
asymmetries
leading
high
baseline
activity
cells
increased
response
rectification
cells.
Язык: Английский