Priors, Evidence, and Memory: Dynamics of Predictive Processing in a Hierarchical Visual System
Neuroscience & Biobehavioral Reviews,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106134 - 106134
Published: April 1, 2025
Language: Английский
Unpacking the Complexities of Consciousness: Theories and Reflections
Liad Mudrik,
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Mélanie Boly,
No information about this author
Stanislas Dehaene
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et al.
Neuroscience & Biobehavioral Reviews,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106053 - 106053
Published: Feb. 1, 2025
As
the
field
of
consciousness
science
matures,
research
agenda
has
expanded
from
an
initial
focus
on
neural
correlates
consciousness,
to
developing
and
testing
theories
consciousness.
Several
have
been
put
forward,
each
aiming
elucidate
relationship
between
brain
function.
However,
there
is
ongoing,
intense
debate
regarding
whether
these
examine
same
phenomenon.
And,
despite
ongoing
efforts,
it
seems
like
so
far
failed
converge
around
any
single
theory,
instead
exhibits
significant
polarization.
To
advance
this
discussion,
proponents
five
prominent
consciousness-Global
Neuronal
Workspace
Theory
(GNWT),
Higher-Order
Theories
(HOT),
Integrated
Information
(IIT),
Recurrent
Processing
(RPT),
Predictive
(PP)-engaged
in
a
public
2022,
as
part
annual
meeting
Association
for
Scientific
Study
Consciousness
(ASSC).
They
were
invited
clarify
explananda
their
theories,
articulate
core
mechanisms
underpinning
corresponding
explanations,
outline
foundational
premises.
This
was
followed
by
open
discussion
that
delved
into
testability
potential
evidence
could
refute
them,
areas
consensus
disagreement.
Most
importantly,
demonstrated
at
stage,
more
controversy
than
agreement
pertaining
most
basic
questions
what
is,
how
identify
conscious
states,
required
theory
Addressing
crucial
advancing
towards
deeper
understanding
comparison
competing
theories.
Language: Английский
Context‐Sensitive Conscious Interpretation and Layer‐5 Pyramidal Neurons in Multistable Perception
Brain and Behavior,
Journal Year:
2025,
Volume and Issue:
15(3)
Published: March 1, 2025
There
appears
to
be
a
fundamental
difference
between
the
two
ways
of
how
an
object
becomes
perceptually
experienced.
One
occurs
when
preconscious
object-specifying
sensory
data
processing
crosses
certain
threshold
so
that
constituents
depiction
become
consciously
The
other
already
experienced
features
interpreted
as
belonging
visual
category.
Surprisingly,
experimental
facts
about
neural
markers
conscious
access
gathered
far
do
not
allow
us
distinguish
mechanisms
responsible
for
these
varieties.
A
cortical
multicompartment
layer-5
pyramidal
neuron-based
generic
model
is
presented
in
order
conceptualize
possible
mechanistic
solution
explanatory
cul-de-sac.
To
support
argument,
review
pertinent
research
compiled
associated
with
from
studies
where
physically
invariant
perceptual
stimuli
have
underwent
alternative
interpretation(s)
by
brain.
Recent
developments
newly
emerging
field
cellular
psycho(physio)logy
are
introduced,
offering
hypothetical
distinguishing
subserving
content
experience
and
interpretation.
single
cell-based
approach
brain
process
correlates
perception
added
value
beyond
traditional
inter-areal
connectivity-based
theoretical
stances.
Language: Английский
Advancing neural computation: experimental validation and optimization of dendritic learning in feedforward tree networks
American Journal of Neurodegenerative Disease,
Journal Year:
2024,
Volume and Issue:
13(5), P. 49 - 69
Published: Jan. 1, 2024
This
study
aims
to
explore
the
capabilities
of
dendritic
learning
within
feedforward
tree
networks
(FFTN)
in
comparison
traditional
synaptic
plasticity
models,
particularly
context
digit
recognition
tasks
using
MNIST
dataset.
We
employed
FFTNs
with
nonlinear
segment
amplification
and
Hebbian
rules
enhance
computational
efficiency.
The
dataset,
consisting
70,000
images
handwritten
digits,
was
used
for
training
testing.
Key
performance
metrics,
including
accuracy,
precision,
recall,
F1-score,
were
analysed.
models
significantly
outperformed
plasticity-based
across
all
metrics.
Specifically,
framework
achieved
a
test
accuracy
91%,
compared
88%
demonstrating
superior
classification.
Dendritic
offers
more
powerful
by
closely
mimicking
biological
neural
processes,
providing
enhanced
efficiency
scalability.
These
findings
have
important
implications
advancing
both
artificial
intelligence
systems
neuroscience.
Language: Английский