Reza Shadmehr and Sandro Mussa-Ivaldi
- Published in print:
- 2012
- Published Online:
- August 2013
- ISBN:
- 9780262016964
- eISBN:
- 9780262301282
- Item type:
- chapter
- Publisher:
- The MIT Press
- DOI:
- 10.7551/mitpress/9780262016964.003.0012
- Subject:
- Neuroscience, Research and Theory
This chapter is concerned with the cost of time in motor control. It concentrates on a theory that assumes that the purpose of movements is to attain a rewarding state at a minimum effort. It ...
More
This chapter is concerned with the cost of time in motor control. It concentrates on a theory that assumes that the purpose of movements is to attain a rewarding state at a minimum effort. It describes a very simply model of the human eye plant, and then observes a set of motor commands that bring the eyes to the target while minimizing a cost. This chapter shows that the motor commands that move the eyes reflect a specific cost of time, one in which passage of time discounts reward. It suggests that the motor commands that move the body may be a reflection of an economic decision regarding reward and effort.Less
This chapter is concerned with the cost of time in motor control. It concentrates on a theory that assumes that the purpose of movements is to attain a rewarding state at a minimum effort. It describes a very simply model of the human eye plant, and then observes a set of motor commands that bring the eyes to the target while minimizing a cost. This chapter shows that the motor commands that move the eyes reflect a specific cost of time, one in which passage of time discounts reward. It suggests that the motor commands that move the body may be a reflection of an economic decision regarding reward and effort.
Reza Shadmehr and Sandro Mussa-Ivaldi
- Published in print:
- 2012
- Published Online:
- August 2013
- ISBN:
- 9780262016964
- eISBN:
- 9780262301282
- Item type:
- chapter
- Publisher:
- The MIT Press
- DOI:
- 10.7551/mitpress/9780262016964.003.0011
- Subject:
- Neuroscience, Research and Theory
This chapter discusses the costs and reward discounts of motor commands. It suggests that certain manipulations (food, repetition, etc.) change the implicit value that the brain assigns to the target ...
More
This chapter discusses the costs and reward discounts of motor commands. It suggests that certain manipulations (food, repetition, etc.) change the implicit value that the brain assigns to the target of the saccade, and that in turn affect the motor commands that move the eyes. This chapter shows that movement trajectories are a result of motor commands that produce changes in state that attempt to meet task goals, while minimizing some measure of effort.Less
This chapter discusses the costs and reward discounts of motor commands. It suggests that certain manipulations (food, repetition, etc.) change the implicit value that the brain assigns to the target of the saccade, and that in turn affect the motor commands that move the eyes. This chapter shows that movement trajectories are a result of motor commands that produce changes in state that attempt to meet task goals, while minimizing some measure of effort.
