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
what does the action pathway connect
the primary visual cortex with the posterior parietal lobes
26
what is the ventral stream
the perception pathway
27
what is the dorsal stream
the action pathway
28
where is the dorsal stream located
goes over the top like a dolphin
29
where is the ventral stream located
below the dorsal stream
30
how is it known that dorsal and ventral streams work in tandem
because research has been done on people with injuries to their brain
31
in time restricted tasks, skilled athletes anticipate movements based on what
visual information from the environment
32
finish the quote from J.J. Gibson (1979) "we must perceive in order to move, but we also...
"we must perceive in order to move, but we also must move in order to perceive"