Ataxic Dysarthria

Question 1

Main problem?

Answer 1

Problem with motor control (timing and coordination)

Question 2

Locus of lesion

Answer 2

Cerebellum

Cerebellar control circuit

Question 3

What is most affected?

Answer 3

Articulation and prosody

Question 4

Clinical characteristics of AD

Answer 4

• Unsteady stance and gait
• Titubation
• Nystagmus
• Hypotonia associated with excessive pendulousness
• Dysmetria
• Dysdiadochokinesis
• Intention and terminal tremor
• Possible cognitive disturbances

Question 5

Speech Tasks

Answer 5

Conversational speech, reading, AMRs, repetition of sentences with multisyllabic words

Question 6

Titubation (AD)

Answer 6

Involuntary tremor

Rhythmic nodding or shaking of the head, neck and trunk

Question 7

Nystagmus (AD)

Answer 7

Vision condition in which the eyes make repetitive, uncontrolled movements

Question 8

Hypotonia with excessive pendulousness (AD)

Answer 8

reduced muscles tone / hanging loosely

Question 9

Dysmetria (AD)

Answer 9

Inability to control the distance, speed, and range of motion necessary to perform smoothly coordinated movements

Question 10

Dysdiadochokinesis (AD)

Answer 10

Inability to perform rapid alternating muscle movements

Question 11

Intention and terminal tremor

Answer 11

Intention: Type of tremor that occurs during a purposeful movement and becomes more pronounces as the movement ends