What
determines
where
to
move
the
eyes?
We
recently
showed
that
pupil
size,
a
well-established
marker
of
effort,
also
reflects
effort
associated
with
making
saccade
(‘saccade
costs’).
Here,
we
demonstrate
costs
critically
drive
selection:
when
choosing
between
any
two
directions,
least
costly
direction
was
consistently
preferred.
Strikingly,
this
principle
even
held
during
search
in
natural
scenes
additional
experiments.
When
increasing
cognitive
demand
experimentally
through
an
auditory
counting
task,
participants
made
fewer
saccades
and
especially
cut
directions.
This
suggests
eye-movement
system
other
operations
consume
similar
resources
are
flexibly
allocated
among
each
as
changes.
Together,
argue
behavior
is
tuned
adaptively
minimize
saccade-inherent
effort.
Communications Psychology,
Год журнала:
2025,
Номер
3(1)
Опубликована: Фев. 26, 2025
Abstract
Decision
fatigue
is
the
idea
that
making
decisions
mentally
demanding
and
eventually
leads
to
deteriorated
decision
quality.
Many
studies
report
results
appear
consistent
with
fatigue.
However,
most
of
this
evidence
comes
from
observed
sequential
patterns
using
retrospective
designs,
without
preregistration
or
external
validation
low
precision
in
how
operationalized.
Here
we
conducted
an
empirical
test
large-scale,
high-resolution
data
on
healthcare
professionals’
medical
judgments
at
a
national
telephone
triage
advice
service.
This
suitable
setting
for
testing
because
work
both
hard
repetitive,
yet
qualified,
variation
scheduling
produced
where
level
could
be
regarded
as
near
random
some
segments
data.
We
hypothesized
increased
use
heuristics,
more
specifically
convergence
toward
personal
defaults
case
judgments,
higher
assigned
urgency
ratings
tested
these
hypotheses
one-sided
Bayes
Factors
computed
underlying
Bayesian
generalized
mixed
models
intercepts.
The
consistently
showed
relative
support
statistical
null
hypothesis
no
difference
decision-making
depending
(BF
0+
>
22
all
main
tests).
thus
found
Whereas
don’t
preclude
existence
weaker
nuanced
version
context-specific
effects,
they
cast
serious
doubt
relevance
domain
general
effect
elsewhere.
Developmental Science,
Год журнала:
2025,
Номер
28(3)
Опубликована: Март 16, 2025
ABSTRACT
Empirical
studies
have
shown
immediate
detrimental
effects
of
TV
viewing
on
children's
executive
functions
(EFs).
Existing
theories
proposed
that
such
depletion
could
occur
due
to
fantastical
cartoons
triggering
an
attention
bias
towards
salient
features
the
stimuli
(e.g.,
stimulus‐driven
exogenous
attention).
However,
a
co‐occurrence
visual
known
drive
exogenously
in
means
it
is
unclear
which
aspect
content
problematic.
In
present
study,
we
matched
clips
saliency
isolate
and
test
short‐term
impact
content.
Specifically,
tested
(1)
performance
inhibitory
control
(IC)
task
(a
gaze‐contingent
anti‐saccade
task)
as
measure
EF
depletion,
whilst
36
toddlers
(18
months)
viewed
with
without
events
(7‐min
duration),
(2)
whether
differences
IC
are
associated
increased
attention.
Results
confirmed
effect
toddlers’
endogenous
(indexed
by
behaviours),
less
able
inhibit
looks
distractor
make
anticipatory
target.
fixation
durations
(FDs)
during
cartoon
speed
orienting
did
not
differ
between
two
conditions,
suggesting
no
driven
These
results
point
mechanisms,
may
arisen
from
cognitive
processing
difficulties.
Communications Psychology,
Год журнала:
2025,
Номер
3(1)
Опубликована: Апрель 4, 2025
When
making
decisions,
humans
are
susceptible
to
all
sorts
of
biases,
relative
rational
norms.
An
important
factor
is
incidental
changes
in
affective
states,
such
as
variations
mood
between
happiness
and
sadness.
We
previously
developed
a
computational
model,
which
affects
choice
by
forming
predisposition
face
costs
seek
more
rewards.
Here,
we
generalized
this
theory
account
for
how
specific
inductions
sadness
affect
different
types
economic
decisions
involving
tradeoff
(risk,
delay,
effort)
benefits
(financial
rewards).
Across
exploratory
confirmatory
studies
(N
=
94),
observed
consistent
bias
exerted
transitory
whether
they
were
assessed
through
self-reports
(rated
minus
sadness)
or
inferred
from
physiological
measures
(valence
facial
expression
times
intensity
autonomous
arousal).
This
was
best
explained
our
with
mood-scaled
bonus
added
the
value
rewarded
but
costly
option,
irrespective
cost
type
delay
effort).
Additionally,
gaze
tracking
during
decision
confirmed
that
driven
an
early
preference
mood-congruent
option.
Together,
these
results
demonstrate
feasibility
predicting
irrational
choices
objective
states.
What
determines
where
to
move
the
eyes?
We
recently
showed
that
pupil
size,
a
well-established
marker
of
effort,
also
reflects
effort
associated
with
making
saccade
(‘saccade
costs’).
Here,
we
demonstrate
costs
critically
drive
selection:
when
choosing
between
any
two
directions,
least
costly
direction
was
consistently
preferred.
Strikingly,
this
principle
even
held
during
search
in
natural
scenes
additional
experiments.
When
increasing
cognitive
demand
experimentally
through
an
auditory
counting
task,
participants
made
fewer
saccades
and
especially
cut
directions.
This
suggests
eye-movement
system
other
operations
consume
similar
resources
are
flexibly
allocated
among
each
as
changes.
Together,
argue
behavior
is
tuned
adaptively
minimize
saccade-inherent
effort.