2. Human Abilities

Motor Control — Quiz

Test your understanding of motor control with 5 practice questions.

Practice Questions

Question 1

What concept describes the coordinated activation of groups of muscles to simplify control by reducing the number of independent variables?

Question 2

According to the minimum variance model of motor control, why do faster movements tend to be less accurate?

Question 3

In a feedback control system for human movement, how does an increase in total sensorimotor delay affect the system's bandwidth?

Question 4

In the Steering Law, the index of difficulty for a straight path is given by $ID=\frac{A}{W}$. For a path length $A=100\,\mathrm{mm}$ and width $W=25\,\mathrm{mm}$, what is $ID$?

Question 5

Using Fitts’s Law $MT=a+b\,ID$ with $a=200\,\mathrm{ms}$ and $b=100\,\mathrm{ms/bit}$, what is the predicted movement time $MT$ for a target at distance $D=240\,\mathrm{mm}$ and width $W=60\,\mathrm{mm}$?