Ap Psych Sensation
Ap Psych Sensation
Ap Psych Sensation
is sensation?
The
human
fovea
can
only
focus
on
a
very
small
area
at
one
time
We
xate
on
one
location
for
a
moment
and
then
move
on
to
the
next
xation.
We
take
in
little
at
each
xation
and
its
through
a
pattern
of
saccades
that
we
take
in
our
visual
environment.
You
see
more
of
what
youre
looking
for
and
less
of
what
you
arent.
Psychological
World
Light
Brightness
Sound
Volume
Pressure
Weight
Sugar
Sweet
A relative increase in
mental intensity,
[Fechner] realized,
might be measured in
terms of the relative
increase in physical
energy required to bring
it about
(Wozniak, 1999).
Gustav Fechner
(1801-1887)
Absolute Threshold
minimum
stimulation
needed
to
detect
a
particular
stimulus
50%
of
the
time
Dierence
Threshold
minimum
dierence
between
two
stimuli
required
for
detection
50%
of
the
time
Or
also
called
the
JND
just
noticeable
dierence
(JND)
STIMULUS
RECEPTORS
THRESHOLD
A candle flame
viewed from a
distance of about 30
miles on a dark night
Vision
Electromagnetic
Energy
Hearing
Sound Waves
Smell
Chemical substances
in the air
Taste
Chemical substances
in saliva
About 1 teaspoon of
sugar dissolved in 2
gallons of water
Touch
Backmasking
is
the
process
of
recording
hidden
messages
in
music
which
can
only
be
revealed
when
a
song
is
played
backward.
This
technique
was
rst
used
by
the
British
Broadcasting
Corporation
in
the
1920s,
in
an
attempt
to
change
people's
negative
attitude
toward
radio
broadcasting
http://jemilner.com/backmasking/index.html
a particular stimulus.
environment
http://taylorappsychology.weebly.com/unit-4-
sensation-and-perception.html
http://www.msnbc.msn.com/id/38154937/ns/dateline_nbc-the_hansen_les_with_chris_hansen/
28
Persons experience
Expectations
Motivation
Level of fatigue
Transduction
is
the
process
of
one
form
of
energy
into
another
Remember Ethan in
Sky High. He changes
his body to slime.
Solid form to liquid
form. Change from
one form of energy to
another. Click the
picture to watch power
placement.
http://www.youtube.com/watch?v=el0BSM0WRlU