3802098
Descrição
Mapa Mental por Kirsten Sjostrom, atualizado more than 1 year ago
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Criado por Kirsten Sjostrom
aproximadamente 9 anos atrás
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Sensation &
Perception
- Vision
- Lens- functions to change
the focal distance of the
eye so that it can focus on
objects at various
distances, thus allowing an
image of the object to be
formed on the retina.
- Pupil- is the black
circle in the center of
your iris that allows
light to pass through
- Pupil- is the black
circle in the center of
your iris that allows
light to pass through
- Retina- receive light
that the lens has
focused, convert the
light into neural
signals, and send
these signals on to
the brain for visual
recognition.
- Rods and Cones-
Cones are responsible
for color vision and
function best in
relatively bright light,
as opposed to rod
cells, which work
better in dim light.
- Rods and Cones-
Cones are responsible
for color vision and
function best in
relatively bright light,
as opposed to rod
cells, which work
better in dim light.
- The Brain and the
Eye- Light > rods and
cones > neural
signals > bipolar cells
> ganglion cells >
optic nerve > optic
chiasm > opposite
half brain >
- Lens- functions to change
the focal distance of the
eye so that it can focus on
objects at various
distances, thus allowing an
image of the object to be
formed on the retina.
- Hearing
- Hearing Capacities- Humans are capable of
estimating a sound's origin through a process called
sound localization, which relies on timing and
intensity differences in sound waves collected by each
of our two ears
- Properties of sound-The ear can be divided into the
outer, middle, and inner ear
- Auditory
Perception-The outer
ear is responsible for
collection and
amplification of
sound.The air-filled
middle ear transforms
sound waves into
vibrations, protecting
the inner ear from
damage.The
fluid-filled inner ear
transduces sound
vibrations into neural
signals that are sent
to the brain for
processing.
- Auditory
Perception-The outer
ear is responsible for
collection and
amplification of
sound.The air-filled
middle ear transforms
sound waves into
vibrations, protecting
the inner ear from
damage.The
fluid-filled inner ear
transduces sound
vibrations into neural
signals that are sent
to the brain for
processing.
- Hearing Capacities- Humans are capable of
estimating a sound's origin through a process called
sound localization, which relies on timing and
intensity differences in sound waves collected by each
of our two ears
- Smell
- Stimuli- chemical signals
- Receptors- receptor cells in nasal cavity
- Receptors- receptor cells in nasal cavity
- Pheromones-chemical
messages that can be sent
by one member of a
species to another and
usually linked to sexual
attraction.
- Stimuli- chemical signals
- Taste
- Stimuli-chemical substances
dissolved in water or other fluids.
- Receptors- taste buds
- Receptors- taste buds
- Sensitivity-There are five
main types of taste sensations:
bitter, salty, sweet, sour, and
umami
- Stimuli-chemical substances
dissolved in water or other fluids.
- Pressure on the Skin-The
receptor cells in the skin
can be broken down into
three functional
categories:
mechanoreceptors sense
pressure and texture,
thermoreceptors sense
temperature, and
nociceptors sense pain.
sensation travels from
recpetor to brain to be
procesed.
- Webers Law-size
of Just Noticeable
Difference (JND) is
proportional to
size of initial
stimulus
- Absolute
Thresholds-absolute
threshold or minimum
amount of stimulation
that the organism can
detect for a specific
type of sensory input. (50% of time)
- Top-Down
Processing-brain
uses this also like
reversible figures
or when we
perceive a word
before we know all
the individual
letters.
- Bottom-Up
Processing-used in
feature analysis. Start
at parts and build
toward the whole.
- Bottom-Up
Processing-used in
feature analysis. Start
at parts and build
toward the whole.
- sensaton vs perception-
sensation is the input
about the physical world
that is registered by our
sensory receptors.
Perception is the process
by which the brain
selects, organizes, and
interprets sensations
- psychophysics-the
scientific study of the
relationship between
stimuli and the
sensations and
perceptions
- Sensory
adaptation-
involves the
gradual decrease
in behavioral
response with
repeated
application of a
particular
stimulus over
time.
- psychophysics-the
scientific study of the
relationship between
stimuli and the
sensations and
perceptions
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