PRC Cranial, Visual & Vestibular Integration 2

Question 1

What does PRI mean by 'visual proprioception'?

Accepted Answer

Peripheral visual input that contributes to spatial orientation and can reinforce postural patterns

Answer

The use of mirrors to provide visual postural feedback during exercise sessions

Answer

A technique using prism glasses to correct refractive visual field deficits

Answer

Visual scanning patterns performed during dynamic movement assessment

Question 2

How does temporal bone positioning relate to postural asymmetry in PRI?

Accepted Answer

Because it houses vestibular structures, temporal bone position can influence vestibular input and cranial postural patterns

Answer

The temporal bone affects jaw mechanics only, with no postural significance

Answer

The temporal bone only affects hearing and auditory processing, not balance

Answer

Temporal bone position is irrelevant in musculoskeletal rehabilitation contexts

Question 3

How does trigeminal nerve afferent input influence postural patterns in PRI practice?

Accepted Answer

Trigeminal afferent input connects to the vestibular nucleus and can modulate cervical muscle tone

Answer

The trigeminal nerve controls only facial sensation and has no postural role

Answer

It exclusively governs jaw movement independent of postural mechanics

Answer

It regulates autonomic tone in the thorax without affecting cervical position

Question 4

In PRI, what is the clinical significance of the sphenobasilar junction?

Accepted Answer

Asymmetrical sphenobasilar position may contribute to cranial base mechanics affecting dural tension and cervical patterns

Answer

It is a fixed joint with no clinical significance in postural restoration

Answer

The sphenobasilar junction only affects pituitary hormone function

Answer

It regulates cerebrospinal fluid pressure in isolation from postural mechanics

Question 5

What is the relationship between mandibular (jaw) position and postural restoration in PRI?

Accepted Answer

Mandibular position can influence cervical muscle activity through the trigeminal-cervical complex

Answer

Jaw position has no relationship to cervical or postural mechanics

Answer

Dental occlusion is outside PRI scope and managed exclusively by dentists

Answer

The jaw only affects the temporomandibular joint without influencing postural patterns elsewhere

Question 6

How do therapeutic prism lenses work in PRI treatment?

Accepted Answer

They shift the perceived visual vertical, potentially reducing compensatory postural muscle activation

Answer

They correct refractive errors to improve visual acuity for exercise performance

Answer

They magnify peripheral vision to improve proprioceptive awareness of body position

Answer

They are used exclusively to treat vestibular nystagmus in neurological patients

Question 7

What is the clinical relevance of righting reflexes in PRI treatment?

Accepted Answer

Righting reflexes can perpetuate postural asymmetry as the body compensates to keep eyes and head level

Answer

Righting reflexes are only relevant in infant development, not adult PRI treatment

Answer

Righting reflexes should be completely suppressed during PRI exercise performance

Answer

They exclusively control lower extremity movement patterns during gait