Yip-gues Lecture

Question 0

Visual gaze

Answer 0

Movement of our eyes as we fixate on one object to another

Question 1

Ian waterman

Answer 1

➡️deafferented man,no touch feedback below the neck
➡️relearned how to control posture, balance and walk using visual and vestibular feedback
controls dynamic posture by
1)reducing degrees of freedom-stiffening
2)wider BoS
3)tilts head forward to visually monitor body orientation
*similiar to old person gate

Question 2

Saccades

Answer 2

Quick active movements connecting fixations

Question 3

Optic vs visual flow

Answer 3

Optic:the pattern of visual motion at the eye
Visual:the rate of optic flow

Question 4

Visual feedback

Answer 4

1⃣provides Information about our environment at a distance
2⃣helps to determine the speed of locomotion. (Visual flow)
3⃣provides postural and movement information with relation to the segments of the body (critical for Ian W)

Question 5

Sensory reafference

Answer 5

‘New’ afferents information obtained after the movement

Vestibulatory input contributes to the interpretation of sensory afference

Question 6

Sensory re weighting

Answer 6

Altering the sensory contributions to postural control

I.e figure skater