Exam 7: Performance and Motor Control Characteristics of Functional Skills

Which of the following statements reflects the appropriate view of the spatial and temporal control underlying the performance of an asymmetric bimanual action?

The ratios of number of arm swings to leg swings for walking and running are both 1:1 (i.e., one arm swing for one leg swing).

When a person walks or runs, an essential goal of the motor control system is the maintenance of head _______.

One of the current views of how we control prehension is that the transport and grasp phases function:

Gait transitions, from walking to running and running to walking, occur at the same speed for all people.

The playing of a guitar is a good example of performing:

The term used to describe a bimanual coordination task that requires the two hands to simultaneously perform movements that have the same spatial and temporal characteristics is ________.

That a person can adapt their handwriting to different surfaces, sizes, forces, etc., is an example of what Bernstein referred to as motor ________.

When you reach to grasp an object, which of the following describes when the fingers begin to close?

In a two-hand aiming task in which the right hand must move to a target that has an ID of 4, and the left hand must simultaneously move to a target that has an ID of 2, when will each hand arrive at the target?

The serve in tennis is a good example of an asymmetric bimanual skill.

Although Fitts' law is based on manual aiming tasks, research has shown that it applies to prehension actions as well.

Consider the following two prehension situations: a person reaches to pick up a cup to: (a) drink from it; (b) move it to a different location on the table. The kinematic characteristics of the transport phase for these two situations would:

The three phases of prehension are called the transport phase, the grasp phase, and the ________ phase.

During the preparation phase of putting a key in a keyhole, you use vision to assess the regulatory conditions.

A predominant view of gait control is that at the nervous system level, gait is controlled by central pattern ________.

Central pattern generators, which are involved in the control of gait, are thought to be located primarily in the brain.

Fitts' Law specifies that performance will show a speed-accuracy trade-off in a rapid manual aiming task according to the relationship between which two characteristics of the task?

The Index of Difficulty (ID) that can be derived from Fitts' law demonstrates that the same task can have various levels of difficulty and the same amount of:

The "atypical" posture and gait characteristics we often observe in children and adults with cerebral palsy can be related to strategies the individuals have developed in order to maintain a stable head position during locomotion.