PSC1002/L22 Sensation & Motor Control II Flashcards
1
Q
Describe long-loop (supraspinal) reflexes.
A
Fast transcortical ‘long-loop’ reflexes modified by instructions
2
Q
How does feedback control with time delays usually present?
A
Very slow or unstable
3
Q
What does cerebellar injury lead to?
A
Deficits in predictive motor responses
4
Q
What are motor errors signalled by?
A
Climbing fibres
5
Q
What is the role of climbing fibres? (2)
A
Generate complex spikes in Purkinje cells
Drive long-term depotentiation (LTD) at parallel fibre synapses
6
Q
What determines the ‘vigour’ of movement?
A
Balance between direct and indirect pathways in basal ganglia
