Human Abilities and HCI: Vision and Perception

What is the approximate decay time for information in the visual buffer?

The afterimage you see after staring at a bright light is a result of:

Perceptual buffers have limited capacity. What kind of search can be very fast in the visual buffer?

The Human Visual System is exceptionally fast and efficient at:

Where is most of our ability to see details (acuity) concentrated in the retina?

Which type of photoreceptors in the retina are responsible for detecting details and colors in good lighting?

Cones are not effective in:

Which type of photoreceptors detect light levels in very low light conditions, such as at night or in a dark room?

How many types of cones are there in the eye?

Which type of photoreceptors are responsible for night vision but are not sensitive to color?

The distribution of cones is mostly dense in:

Which color are we less sensitive to due to the distribution of red and green cones?

Color vision deficiency, also known as color blindness, primarily affects the ability to differentiate between which colors?

Which background color combinations can hurt the eyes and should be avoided?

What can flashing or blinking at certain frequencies cause in some individuals?

Why is blinking often used sparingly in user interfaces?

How many people in the USA had some level of disability in 1997?

Which organization has developed usability and accessibility guidelines for the Internet?

The Human Visual System is highly efficient at visual pattern matching and object recognition, especially when combined with:

What is the approximate decay time for information in the auditory buffer?

What is the central area of the retina where most of our ability to see details is concentrated?

Which type of photoreceptors are sensitive to color and details in good lighting?

In what lighting conditions do rods work best?

What do cones primarily detect in very low light conditions?

How many types of cones are there in the human eye?

What is the function of rods in the retina?

What is the implication of the distribution of cones in the retina?

Which type of cones are more sensitive to blue and yellow shades?

Which color backgrounds are generally soothing on the eyes?

What is the most common form of color vision deficiency?

Which background colors are known to hurt the eyes when used together?

To minimize eye movement, UI design should:

What is the recommended way to design color palettes?

What standard body defines and specifies HTML and CSS for the web?

In the USA, what percentage of the population had a severe disability in 1997?

What is the main function of the Human Visual System?

What is the afterimage you see after staring at a bright light?

What part of the eye is concentrated with cones and is responsible for detecting details and color in good lighting?

In which lighting conditions do rods work well?

What does the distribution of cones imply for the field of vision?

Which type of cones are the least sensitive to color?

Which type of photoreceptors are sensitive to colors in good lighting?

Which color combinations can hurt the eyes and should be avoided in UI design?

What is the purpose of blinking in UI design?

What organization has developed accessibility guidelines for software applications and web-based information?

What was the approximate number of people in the USA with some level of disability in 1997?

The Human Visual System is highly efficient at which of the following?

In which buffer is information known to decay quickly, within 70-1000 milliseconds?

The highest concentration of photoreceptors in the retina is found in the:

Which type of photoreceptors are sensitive to color and details in good lighting conditions?

Which type of photoreceptors are responsible for detecting light levels in very low light conditions?

How many types of cones are there in the human eye?

What is the main function of cones?

What does the distribution of cones in the retina imply for color perception?

What type of photoreceptors are responsible for detecting light levels in very low light conditions, such as at night or in a dark room?

Which part of the eye is concentrated with cones and is responsible for detecting details and color in good lighting?

What is one implication of having more red and green cones than blue cones?

Which background colors are known to hurt the eyes when used together?

To minimize eye movement in UI design, what is recommended?

What should be the main objective when designing color palettes for UI?