Test 1 Ch. 6 Sensory Components of Motor Control Flashcards
sensory info
provides pre- movement info
- provides feedback during
- and after achievement of movement
processing info
info enters system through the stimulus ID. mechanism
- who
- what
- where
- how
exteroceptive info
source from outside the body
- sound of ball his off the bat
interoceptive info
- proprioceptive
- kinesthetic info
proprioceptive
sources from inside the body
- specific to signals regarding body/limb position and movement
Kinesthetic info
sources from within the joint
- signals contraction and tension with in the muscle
tactile sensory info
influences:
- movement accuracy
- movement consistency
- movement force adjustments
sensation
receiving info
perception
interpreting the info
muscle spindles
typ of proprioceptor
consist of specialized muscle fibers of most skeletal muscles
- detect changes in muscle length
Golgi-tendon organs
typ of proprioceptor
located in muscle near tendons insertion of the muscle
-detect changes in muscle tension, or force
Joint receptor (typ of proprioceptor
collection of various types of proprioceptors located in joint capsule of ligament
- detect changes in joint movement at extreme limits of movement and position
role of proprioceptive feedback
- movement accuracy
- target accuracy
- spatial/temporal accuracy
- timing of release
vision and motor control
preferred source of sensory info
- beginner piano players looks at hands
- beginner dancer looks at feet
monocular vision
using one eye
binocular vision
using 2 eyes
- 3D
- depth
depth perception interpreting
distance b/t 2 objects
- distance b/t object and performer
central vision
(focal) what is it?
peripheral vision
(ambiant) where is it?
- detects info buy assessing optical flow pattern
optical flow
rays of light that strike the retina
vision for perception
central vision
vision for action
detect spatial characteristics of a scene and guiding movement
- typically available to consciousness
spatial relations
body as home base
spatial orientation
interpretation of an obj. change in position in space
spatial visualization
mental motion picture
perceptual integration
combination of info
- reference points in environment
- effect of optic flow
speed of vision
how much can i get in one glance
- pursuit speed(can i keep track)
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