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Let's take a closer look at how
products are sensed and perceived.

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When designing digital products, the first
sense that comes to mind is likely vision.

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While vision certainly shapes
the user experience for

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sighted folks, there are other
sensations at play as well.

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Sensation refers to the immediate,

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relatively unprocessed result of
stimulation of sensory receptors.

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Information is taken in via touch,
smell, taste, hearing, and vision.

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Touch is a common sensation
with digital products.

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Haptic feedback is the use of
touch to communicate with users.

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Think of a time when you set
an alarm on your phone to vibrate.

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That vibration is haptic feedback.

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It's also common in gaming and
virtual reality as it expands a 2D

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experience on a device into a more fully
embodied experience in the real world.

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Hearing is another sensation that
is affected by digital products.

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When your phone gets a call,
it plays a ringtone, and

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many apps offer the option of playing
a sound when a notification is received.

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As for smell and taste,

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those senses aren't involved in
the digital product experience, yet.

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Maybe that's for the best.

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If the Internet started pumping out
weird smells as I browse the web,

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I don't think I'd be a fan.

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But outside of digital product design,
smell and taste can certainly be applied

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to other forms of interactive design, such
as experience design and service design.

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These disciplines craft experiences
in the physical world, and

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go beyond devices like computers and
mobile phones.

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Next up, let's take a look at perception.

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Perception is how sensory information
is organized, interpreted, and

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consciously experienced.

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It's a person's unique mix of past
experiences, learnings, and expectations.

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Since it's continuously being reshaped and

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molded, it can be changed and
influenced over time.

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An example of this is pattern recognition.

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Our brains are constantly
filtering out information and

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stimuli of various importance.

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Thus, the designer's pursuit of shifting
the user's attention towards what matters.

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User researchers employ studies
that use eye tracking software

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that analyzes a user's eyes as
they move across the screen.

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These studies have shown that people
have developed banner blindness.

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Our brains have been exposed to so
much banner advertising

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that anything that resembles the common
shape and placement of banners is ignored.

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So take care to avoid presenting
important information like a banner ad,

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because that's likely to get overlooked.

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Perception also extends
to the physical body.

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Proprioception is an awareness of
the position and movement of the body.

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Mobile devices and gaming systems
are equipped with accelerometers and

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spatial sensors.

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These detect motion and gestures, and

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these interactions can be a valuable
input to shape the user experience.

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Fitness apps such as Fitbit use
the accelerometer to detect movement and

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count user's steps.

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That's it for sensation and perception.

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Hopefully, these lessons have given
you a more nuanced view of how

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people interact with technology.

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Now that we have these interaction
design fundamentals down,

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join me as I design
interactions in the next stage.