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the vestibular system Flashcards

(11 cards)

1
Q

where does this sensation come from

A

inner ear and limbswaj

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2
Q

what is this sensation

A

balance and spatial orientation

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3
Q

semicircular canals in ear

A

contain endolymph that shifts to detect direction of head movement and strength of head rotation

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4
Q

otolithic organs

A

utricle and sacculeh

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5
Q

what do the ortholithic organs do

A

detect linear acceleartiona nd ehad positing using calcium carbonate crystals attached o hair cells

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6
Q

how does this contribute to dizziness and vertigo

A

endolymph doesnt stop spinning when we do, continuous moving, get feeling of dizziness

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7
Q

signal detection theory

A

refers to how we make a decision under conditions of uncertainty (how we discern between important stimuli and unimportant noise)

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8
Q

what are the options in response to a signal I signal detection thoery

A
  • hit (subject responds affirmative when signal present)
  • false alarm (subject a perceives a signal when it is not present)
  • correct rejection (a correctt neg answer for no signal)
  • miss (negative response to a present signal)
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9
Q

conservative strategy

A

always say no unless 100% sure that signal is there (misses might occur)

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10
Q

liberals strategy

A

always say yes even if there are some false alarms

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11
Q
A
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