Lecture 8 Flashcards

Integrating Perception and Movement

1
Q

finish this quote by Robert Kiyosaki
“sight is what you see with your eyes, vision ……….

A

“sight is what you see with your eyes, vision is what you see with your mind”

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2
Q

around half of the cerebral cortex is devoted to what

A

visual processing

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3
Q

if optical information is ambiguous what will humans do

A

humans rewight other sensory inputs

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4
Q

where are the cones concentrated in for our vision

A

concentrated in central retina

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5
Q

where are rods found for vision

A

peripheral retina

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6
Q

what are rods very sensitive to

A

light

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7
Q

where is the retina found in the eye

A

lining of the back of the eyeball

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8
Q

what is the primary sensory organ of the visual system

A

the retina

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9
Q

what is transduction (visual system)

A

light waves are converted to electrical impulses

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10
Q

when are cone cells more stimulated

A

high levels of day vision

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11
Q

when are rod cells more sensitive

A

more sensitive to low levels of resolution (movement in dark)

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12
Q

what are the 6 extraocular muscles

A
  • superior rectus muscle
  • inferior rectus muscle
  • medial rectus muscle
  • lateral rectus muscle
  • superior oblique muscle
  • inferior oblique muscle
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13
Q

5 types of eye movements

A
  • vestibular-ocular reflex
  • optokinetic reflex (responsible for large movements around)
  • smooth pursuit
  • saccades
  • vergence
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14
Q

what are the skilled eye movements that need to be practiced

A
  • smooth pursuit
  • saccades
  • vergence
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15
Q

what is monocular vision

A

seeing with only one eye at a time

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16
Q

what is binocular vision

A

vision using two eyes with overlapping fields of view

17
Q

what is binocular vision important for

A

important for depth perception

18
Q

what do skilled players orient their central vision to

A

orient central vision towards key players

19
Q

what do skilled players concurrently use peripheral vision to what …….

A

concurrently use peripheral vision to pick up information from other players

20
Q

less skilled players dont have enough knowledge to effectively …..

A

process information from peripheral vision

21
Q

what vision strategy may be used by less skilled players

A

direct all their attention centrally, to look at key players

22
Q

skilled athletes posses a superior capacity to use …

A

central and peripheral vision

23
Q

what are the two visual channels

A

perception and action pathway

24
Q

what does the perception pathway connect

A

the primary visual cortex with the inferior temporal lobes

25
Q

what does the action pathway connect

A

the primary visual cortex with the posterior parietal lobes

26
Q

what is the ventral stream

A

the perception pathway

27
Q

what is the dorsal stream

A

the action pathway

28
Q

where is the dorsal stream located

A

goes over the top like a dolphin

29
Q

where is the ventral stream located

A

below the dorsal stream

30
Q

how is it known that dorsal and ventral streams work in tandem

A

because research has been done on people with injuries to their brain

31
Q

in time restricted tasks, skilled athletes anticipate movements based on what

A

visual information from the environment

32
Q

finish the quote from J.J. Gibson (1979)
“we must perceive in order to move, but we also…

A

“we must perceive in order to move, but we also must move in order to perceive”