PLoS ONE,
Journal Year:
2023,
Volume and Issue:
18(5), P. e0281253 - e0281253
Published: May 23, 2023
Low-threshold
mechanosensory
C-fibres,
C-tactile
afferents
(CTs),
respond
optimally
to
sensations
associated
with
a
human
caress.
Additionally,
CT-stimulation
activates
brain
regions
processing
affective
states.
This
evidence
has
led
the
social
touch
hypothesis,
that
CTs
have
key
role
in
encoding
properties
of
touch.
Thus,
date,
literature
focussed
on
gentle
stroking
However,
interactions
involve
many
types,
including
static,
higher
force
such
as
hugging
and
holding.
study
aimed
broaden
our
understanding
hypothesis
by
investigating
relative
preference
for
static
vs
dynamic
influence
these
preferences.
recent
highlighted
individual
differences
CT-touch
sensitivity,
this
investigated
experiences
attitudes,
autistic
traits,
depressive
symptomology
perceived
stress
sensitivity.
Directly
experienced,
robotic
responses
were
obtained
through
lab-based
vicarious
an
online
where
participants
rated
videos.
Individual
determined
self-report
questionnaire
measures.
In
general,
was
preferred
over
CT-non-optimal
touch,
however,
consistent
previous
reports,
CT-optimal
(velocity
1–10
cm/s)
most
pleasant.
comparably
dorsal
hand
For
all
velocities,
0.4N
0.05N
1.5N
Participant
quadratic
terms
calculated
proxy
CT-sensitivity
measure.
Attitudes
intimate
significantly
predict
terms,
well
ratings.
Perceived
negatively
predicted
identified
difference
predictors
it
context
dependence
need
consider
Royal Society Open Science,
Journal Year:
2021,
Volume and Issue:
8(9), P. 210287 - 210287
Published: Sept. 1, 2021
Social
touch
has
positive
effects
on
social
affiliation
and
stress
alleviation.
However,
its
ubiquitous
presence
in
human
life
does
not
allow
the
study
of
deprivation
‘in
wild’.
Nevertheless,
COVID-19-related
restrictions
such
as
distancing
allowed
systematic
degree
to
which
affects
tactile
experiences
mental
health.
In
this
study,
1746
participants
completed
an
online
survey
examine
intimate,
friendly
professional
during
restrictions,
their
impact
health
extent
results
craving
touch.
We
found
that
intimate
is
associated
with
higher
anxiety
greater
loneliness
even
though
type
still
most
experienced
pandemic.
Moreover,
reported
craved
period,
thus
being
more
prominent
days
practising
increase.
our
also
show
individuals
crave
period
depends
individual
differences
attachment
style:
anxiously
attached,
craved;
reverse
pattern
for
avoidantly
attached.
These
findings
point
important
role
interpersonal
particularly
times
distress
uncertainty.
Social Cognitive and Affective Neuroscience,
Journal Year:
2018,
Volume and Issue:
unknown
Published: Sept. 22, 2018
Pain
is
modulated
by
social
context.
Recent
neuroimaging
studies
have
shown
that
romantic
partners
can
provide
a
potent
form
of
support
during
pain.
However,
such
only
focused
on
passive
support,
finding
relatively
late-onset
modulation
pain-related
neural
processing.
In
this
study,
we
examined
for
the
first
time
dynamic
touch
one's
partner
as
an
active
support.
Specifically,
32
couples
provided
social,
active,
affective
(vs
but
neutral)
according
to
properties
specific
C-tactile
afferent
pathway
their
partners,
who
then
received
laser-induced
We
measured
subjective
pain
ratings
and
early
N1
later
N2-P2
laser-evoked
potentials
(LEPs)
noxious
stimulation,
well
individual
differences
in
adult
attachment
style.
found
from
reduces
similarly
attenuates
LEPs
both
at
earlier
(N1)
(N2-P2)
stages
cortical
Adult
style
did
not
affect
LEPs,
anxiety
had
moderating
role
ratings.
This
study
show
touch,
discuss
these
findings
relation
sensory
salience.
Neuroscience,
Journal Year:
2020,
Volume and Issue:
464, P. 117 - 125
Published: Nov. 24, 2020
Primates
are
long-lived,
highly
social
mammals
who
maintain
long-term
bonds
and
cohesive
groups
through
many
affiliative
mechanisms,
foremost
among
them
touch.
From
birth
adulthood,
touch
–
primarily
mutual
grooming
creates
maintains
relationships
of
trust
reliance,
which
the
basis
for
individual
physical
emotional
well-being
reproductive
success.
Because
helps
to
establish,
maintain,
repair
alliances
in
primates,
it
contributes
stability
individuals
cohesion
groups.
In
these
fundamental
ways,
thus,
supports
slow
life
histories
primates.
The
reinforcing
neurochemistry
insures
that
is
a
pleasurable
activity
this,
turn,
makes
behavioral
commodity
can
be
traded
between
primates
desirable
rewards
such
as
protection
against
future
aggression
or
opportunities
handle
infants.
Social
essential
normal
primate
development,
deprived
exhibit
high
levels
anxiety
lower
fertility
compared
those
receiving
regular
Understanding
centrality
health
throughout
lifespan
provides
foundation
appreciating
importance
human
life.
Frontiers in Psychiatry,
Journal Year:
2020,
Volume and Issue:
11
Published: Nov. 4, 2020
Small
everyday
gestures
such
as
a
tap
on
the
shoulder
can
affect
way
humans
feel
and
act.
Touch
have
calming
effect
alter
stress
is
handled,
thereby
promoting
mental
physical
health.
Due
to
current
technical
advances
growing
role
of
intelligent
robots
in
households
healthcare,
recent
research
also
addressed
potential
robotic
touch
for
reduction.
In
addition,
by
non-human
agents
animals
or
inanimate
objects
may
effect.
This
conceptual
article
will
review
selection
most
relevant
studies
reporting
physiological,
hormonal,
neural,
subjective
effects
stress,
arousal,
negative
affect.
Robotic
systems
capable
non-social
be
assessed
together
with
control
strategies
sensor
technologies.
Parallels
differences
human-to-human
human-to-non-human
discussed.
We
propose
that,
under
appropriate
conditions,
act
(social)
signal
safety,
even
when
interaction
partner
an
animal
machine.
outline
directions
future
clinical
relevance.
Thereby,
this
provide
foundation
further
investigations
into
beneficial
contribution
different
regulate
arousal
humans.
Neuroscience & Biobehavioral Reviews,
Journal Year:
2021,
Volume and Issue:
131, P. 360 - 372
Published: Sept. 16, 2021
Social
touch
is
increasingly
utilized
in
a
variety
of
psychological
interventions,
ranging
from
parent-child
interventions
to
psychotherapeutic
treatments.
Less
attention
has
been
paid,
however,
findings
that
exposure
social
may
not
necessarily
evoke
positive
or
pleasant
responses.
can
convey
different
emotions
love
and
gratitude
harassment
envy,
persons'
preferences
be
touched
do
match
with
each
other.
This
review
altogether
99
original
studies
focuses
on
how
contextual
factors
modify
target
person's
behavioral
brain
responses
touch.
The
shows
experience
strongly
modified
by
toucher-related
situational
factors:
for
example,
toucher's
facial
expressions,
physical
attractiveness,
relationship
status,
group
membership,
distress.
At
the
neural
level,
processing
early
perceptual
reflective
cognitive
evaluation.
Based
review,
we
present
implications
using
neuroscientific
research
designs.
Frontiers in Neuroscience,
Journal Year:
2022,
Volume and Issue:
16
Published: Nov. 21, 2022
Although
the
manifestation
of
trauma
in
body
is
a
phenomenon
well-endorsed
by
clinicians
and
traumatized
individuals,
neurobiological
underpinnings
this
remain
unclear.
The
notion
somatic
sensory
processing,
which
encompasses
vestibular
somatosensory
processing
relates
to
systems
concerned
with
how
physical
exists
space,
introduced
as
major
contributor
overall
regulatory,
social-emotional,
self-referential
functioning.
From
phylogenetically
ontogenetically
informed
perspective,
trauma-related
symptomology
conceptualized
be
grounded
brainstem-level
dysfunction
its
cascading
influences
on
physiological
arousal
modulation,
affect
regulation,
higher-order
capacities.
Lastly,
we
introduce
novel
hierarchical
model
bridging
processes
limbic
neocortical
mechanisms
regulating
an
individual’s
emotional
experience
sense
relational,
agentive
self.
This
provides
working
framework
for
neurobiologically
assessment
treatment
conditions
from
perspective.
Frontiers in Psychology,
Journal Year:
2022,
Volume and Issue:
12
Published: Jan. 11, 2022
Humans
are
by
nature
social
beings
tuned
to
communicate
and
interact
from
the
very
beginning
of
their
lives.
The
sense
touch
represents
most
direct
intimate
channel
communication
a
powerful
means
connection
between
self
others.
In
our
digital
age,
development
diffusion
internet-based
technologies
virtual
environments
offer
new
opportunities
overcoming
physical
distance.
It
however,
happens
that
interactions
often
mediated,
tactile
aspects
overlooked,
thus
diminishing
feeling
presence,
which
may
contribute
an
increased
disconnection
loneliness.
current
manuscript
aims
review
extant
literature
about
socio-affective
dimension
advancements
in
interactive
order
provide
perspective
on
multisensory
communication.
Specifically,
we
suggest
interpersonal
affective
might
critically
impact
exchanges,
promoting
co-presence
individuals,
possibly
feelings
sensory
This
topic
investigation
will
be
crucial
relevance
theoretical
aiming
understand
how
integrate
signals
processing
making
this
is
important
both
typical
atypical
populations.
Moreover,
it
pave
way
promising
applications
exploring
possibility
use
technical
innovations
more
interactively
case
people
who
suffer
isolation
