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CSE440 Lecture 07: Human Performance and Models

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Questions and Answers

What is the primary purpose of creating models in the context of human performance?

To avoid collecting data and rely solely on theoretical assumptions
To analyze and isolate components of the phenomena (correct)
To overfit the model for more accurate predictions
To underfit the model to simplify the analysis

What is the fundamental process involved in creating models of human performance?

Test Predictions, Revise, Observe, Devise Model
Collect Data, Isolate Components, Create Model, Make Predictions
Assume Patterns, Draw Analogies, Devise Model, Collect Data, Test Fit to Data, Test Predictions, Revise
Observe, Collect Data, Find Patterns, Draw Analogies, Devise Model, Test Fit to Data, Test Predictions, Revise (correct)

What is the function of the Human Visual System in processing light?

Light doesn't require processing by any system before going to the brain
Light is absorbed by the optic nerves directly
Light passes through lens, focused on retina, goes to the brain for processing (correct)
Light gets processed by the optic nerves before reaching the retina

What is a potential concern related to the Human Visual System described in the text?

The existence of a blind spot due to the capture of light by the retina and passage of optic nerves (C) Signup and view all the answers

What is an essential characteristic of a well-constructed model in the context of human performance?

It captures essential pieces without overfitting or underfitting (B) Signup and view all the answers

What is the function of rods in the retina?

Sensing intensity or shades of gray (A) Signup and view all the answers

What is the main implication of the distribution of photopigments in the retina?

Reduced sensitivity to blue light (A) Signup and view all the answers

Why does the lens yellow with age and absorb short wavelengths?

To decrease sensitivity to blue light (A) Signup and view all the answers

What is the main challenge in detecting blue edges and shapes according to the text?

Difficulty in distinguishing hues (D) Signup and view all the answers

Why do saturated colors require more refocusing than desaturated colors?

They have a higher intensity (D) Signup and view all the answers

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