AAC Motor Access & Alternative Input Methods 2

Question 1

Which motor access method uses infrared light to track corneal reflections and pupil position for AAC control?

Accepted Answer

Eye gaze technology

Answer

Eye gaze technology uses infrared cameras and light sources to track the reflection off the cornea and pupil to determine where the user is looking on the screen.

Question 2

A head mouse system primarily translates which type of movement into cursor control?

Accepted Answer

Head and neck movements

Answer

A head mouse uses sensors (such as infrared reflective dots or camera-based tracking) to translate head and neck movements into cursor movement on the screen.

Question 3

Sip-and-puff technology converts which type of input into switch signals for AAC or computer control?

Accepted Answer

Breath control through inhaling and exhaling

Answer

Sip-and-puff devices detect the direction and sometimes intensity of breath—inhaling (sip) and exhaling (puff)—converting them into switch signals to control devices.

Question 4

During feature matching for motor access, which factor must be assessed FIRST before selecting an access method?

Accepted Answer

The user's most reliable, consistent voluntary movement

Answer

Identifying the user's most reliable voluntary movement is foundational to feature matching, as the access method must align with available motor capabilities.

Question 5

What is a 'keyguard' used for in AAC direct selection access?

Accepted Answer

A physical overlay that prevents accidental activation of adjacent keys

Answer

A keyguard is a physical overlay with openings positioned over targets, helping users with limited motor precision avoid accidentally activating adjacent items during direct selection.

(AAC) Augmentative & Alternative Communication Certification Practice Test

(AAC) Augmentative & Alternative Communication Certification Practice Test

AAC Motor Access & Alternative Input Methods 2