Single unit recording and action part 2 Flashcards
How is motor control organized?
Hierarchical
What brain region is involved in higher level abstract planning?
Premotor, supplementary motor cortex
Where do the Premotor, supplementary motor cortex send the plans?
motor cortex and primary motor cortex
-sending commands to individual limbs
goes to brain stem and spin -> muscles
What does the basal ganglia do?
Helps to learn sequences of actions (Tie your shoe) know when to do the sequence
what does the cerebellum do?
Involved in tuning actions, make them accurate, fluid and smooth
as you move down motor strip you move where?
From feet to head, whole body is represented in the order is it except inverted and contralateral
How is he somatosensory organized
similar to the motor cortex
When you use SUR on a monkey making movements what do you find>?
That there are some neurons that fire only when a monkey is moving a specific direction
Why is it called a tuning curve?
Its the directional tuning of the neuron what direction of movement is it tuned for
Direction of vector represents what?
length reps what?
Perfected direction
How much it is firing
What is the population vector?
Is the sum of all the vectors and the actual direction of movement
direction of movement is determined how?
direction and weight of multiple vectors
neural representation
Population code is what?
Firing rates of many neurons
distributed representation
spatial representation (tuning curve)
