Exam 8: Motor Skills and Control

The idea that movements are planned in advance, and are performed without corrections, is known as

According to Warrick's Principle, a rotary knob placed above a horizontal linear display must be turned _________ in order to cause an indicator in the display to move to the right.

Explain how Fitts' Law can be applied to the design of controls.

Which of the following is true about movements performed without visual feedback

You have designed a video game called "Get Off My Lawn!" in which the player controls a virtual water hose and uses it to spray things as they walk on their virtual lawn, such as neighborhood kids, stray dogs, and salespeople. You have designed it to work with a joystick, such that when the joystick is in the neutral position, the nozzle stays centered on screen. Small deflections of the joystick move the nozzle a small distance from center, while larger deflections move the nozzle to the edges of the screen. This is an example of

According to the Hick-Hyman law, reaction time increases as a function of what aspect of the stimulus?

The scaling between the distance of movement of a controller and the distance of the displayed movement is called the

What are some characteristics of movement skill in older adults?

Controls that need labels are probably poorly coded.

One established reason for why older adults performing slower reaching movements is:

Which of the following is not used to plan an open-loop movement?

Which of the following is not known to affect reaction time?