Theroy - Human Perception & Visual Design Primitives

Question 1

What is Perception?

Answer 1

Perception is the process by which we interpret the world around us, forming a mental representation of the environment.

Question 2

What is Change Blindness?

Answer 2

If our focus gets interrupted, we might be unable to see significant changes that occur in a scene.The phenomena could happen because of inappropriate attentional guidance.

Question 3

What is Selective Attention?

Answer 3

• Attention is a limited resource.
• Humans are not very good at splitting their attention.
• Usually, we switch between tasks and do not do them simultaneously.

Question 4

What is Inattentional Blindness

Answer 4

• Not paying attention to things you don’t focus on.
• Even every-day things that are in plain sight.
• Also referred to as Visual Neglect.

Question 5

What is Pre-Attentive Processing?

Answer 5

Immediately recognizing variation with little conscious effort (<200–250 ms).

Question 6

What is Attentive Processing?

Answer 6

Taking deliberate effort to perceive differences.

Question 7

List 4 metric of Channel Effectiveness

Answer 7

• Accuracy
  How precisely can we tell the difference between encoded items?
• Discriminability
  How many unique steps can we perceive?
• Separability
  Is our ability to use this channel affected by another one?
• Popout
  Can things jump out using this channel?