Lecture 3 and 4 Flashcards Preview

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Flashcards in Lecture 3 and 4 Deck (15):
1

List the components of a MSD exam.

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).

2

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

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

3

What are AMRs?

Alternating Motion Rates

4

What are SMRs?

Sequential Motion Rates

5

What is intelligibility?

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

6

What is comprehensibility?

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.

7

What is naturalness?

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

8

What is the DIVA model?

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

9

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

-Speech sound map
-Broca's area

10

SMA is what?

Supplementary motor area

11

DIVA Model:
Triggering/initiation of activated speech sounds occur in the ____ ____ in the ____ ____ ____

Initiation map
supplementary motor area (SMA)

12

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

Articulatory Velocity and Position map
Ventral motor cortex ( primary motor cortex)

13

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

Feed-forward
Feedback

14

DIVA Model:
What does the feedback system do?

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

15

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

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