Sensory-motor integration

Question 1

What is sensory-motor integration?

Answer 1

Sensory info is needed for correct motor actions, so sensory info is used and integrated with motor circuit commands

Question 2

What senses are involved in sensorimotor integration?

Answer 2

Hearing, vision, somatosensation (pain, cold, warm), proprioception, vestibular
Smell and taste are less obvious

Question 3

What senses are important for balance?

Answer 3

Proprioception, mechanoception, vestibular sensation and vision

Question 4

How are inputs from the skin involved in locomotion?

Answer 4

Allow stepping to adjust for unexpected obstacles (e.g., stumbling-correction)

Question 5

What pathways are involved in sensory generated modifications of locomotion?

Answer 5

• Dorsal spinocerebellar tracts: sense the movement-related iput - afference copy
• Ventral sponocerebellar tracts: sense the locomotor network activity - efference copy

Question 6

What region are involved in stepping over an obstacle?

Answer 6

The motor cortex

Question 7

What region of the brain are involved in planning volutary gait modifications from visual feedback?

Answer 7

The posterior parietal cortex

Question 8

How does the superior colliculus play a role in sensorimotor integration?

Answer 8

It’s a node for visio-motor integration

Question 9

What does visual signals coming from above going to the medial superior colliculus result in?

Answer 9

Fear: freezing or avoidance

Question 10

What does visual signals coming from below going to the lateral superior colliculus result in?

Answer 10

Approach and orienting