Lecture 3 and 4

Question 1

List the components of a MSD exam.

Answer 1

1. History
2. ID of salient movements & normal/deviant speech characteristics
3. Assessment of Intelligibility, Comprehensibility and Efficiency
4. Medical records
5. Interaction w/ patient (most of what you learn is through informal conversation w/ patient).

Question 2

What are the most salient motor characteristics re MSDs? (6)

Answer 2

1. Symmetry
2. Strength
3. Speed of movement
4. Range of motion
5. Steadiness
6. Accuracy

Question 3

What are AMRs?

Answer 3

Alternating Motion Rates

Question 4

What are SMRs?

Answer 4

Sequential Motion Rates

Question 5

What is intelligibility?

Answer 5

The degree to which a listener understands the acoustic signal produced by a speaker.

Question 6

What is comprehensibility?

Answer 6

The degree to which a listener understands speech on the basis of the acoustic signal plus all other information that may contribute to understanding what has been said.

Question 7

What is naturalness?

Answer 7

The normality of speech, i.e. a person may be completely intelligible but have abnormal sounding speech.

Question 8

What is the DIVA model?

Answer 8

How the brain transforms desired movement
Directions in sensory space
Into
Velocities of the 
Articulators

Question 9

DIVA Model:
Production of speech sounds start via activation of cells in the ____ ____ ____ believed to be in the left ventral premotor cortex and ____ ____.

Answer 9

• Speech sound map

- Broca’s area

Question 10

SMA is what?

Answer 10

Supplementary motor area

Question 11

DIVA Model:

Triggering/initiation of activated speech sounds occur in the ____ ____ in the ____ ____ ____

Answer 11

Initiation map

supplementary motor area (SMA)

Question 12

DIVA Model:
Motor commands describing the details of jaw height, tongue tip position, lip protrusion, etc occurs in the ____ ____ and _____ _____ located in the ____ ____ ____

Answer 12

Articulatory Velocity and Position map

Ventral motor cortex ( primary motor cortex)

Question 13

The DIVA model consists, in general, of a ____-____ and _____ control subsystem.

Answer 13

Feed-forward

Feedback

Question 14

DIVA Model:

What does the feedback system do?

Answer 14

Compares an efference copy to the current auditory and somatosensory state in order to make necessary adjustments.

Question 15

DIVA Model:

What are the 5 discrete stages (in order of processing) according to Van der Merwe?

Answer 15

1. Intention
2. Linguistic-symbolic planning
3. Motor planning
4. Motor programming
5. Neuromotor execution