Exam 1 - Chapter 2 - Part 2 Flashcards
1
Q
Angle-Angle Diagrams
A
- used to illustrate the change in both spatial and temporal relationships of limb segments
- the movement of one joint segment is plotted against the movement of a second joint
- can be used to describe coordination of cyclical and discrete movements
- time is embedded within angle-angle diagrams
- the most important features of angle-angle diagrams include -> their shapes and their locations with respect to predetermined reference angles
2
Q
phase-plane portraits
A
- a qualitative measure used to explore the dynamics associated with coordinated behavior
- the movement of one joint is plotted against a movement parameter (e.g. knee joint motion plotted against knee joint motion velocity)
- this measure may enable researchers to identify “qualitative signatures” that characterize certain movement pathologies
3
Q
electromyography (EMG)
A
kinetic measurements
- used to describe how various muscle groups in the leg and trunk are activated when we attempt to restore balance in perturbation studies
4
Q
kinetics
A
based on forces
-help us understand why it is possible to achieve similar movement outcomes using different levels of force
5
Q
position emission tomography (PET)
A
used to study dynamic brain function
6
Q
functional magnetic resonance imaging (fMRI)
A
used to identify neural structures or brain regions involved in the learning and retention of motor skills
7
Q
transcranial magnetic stimulation (TMS)
A
capable of mapping the exact nature of cortical motor output in the form of motor evoked potentials (MEPs)
stimulates the brain
8
Q
outcome measures
A
- fractionated reaction time (FRT)
- premotor time (PRMOT)
- motor time
- movement time (MT)
- total response time (TRT)
- foreperiod or warning interval
- chronometry
- reaction time (RT)
- simple RT (SRT)
- choice RT (CRT)
- discrimination RT (DRT)
9
Q
process measures
A
- kinematic descriptors
- kinematics
- common kinematic measures
- obtaining kinematics
